P(David|Kipping) ∝ P(Kipping|David) P(David) @david_kipping Twitter profile

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

"Think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the momentary masters of a fraction of a dot." Carl Sagan

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

Moon enters the wrong room at a conference.

NASA Sun & Space

@NASASun

5 years

The Moon made a guest appearance in our satellite images of the Sun on Feb. 23-24! The Moon appears to reverse course partway through 🌑↩️ — but that’s an effect caused by the relative motion between the Moon and our Solar Dynamics Observatory satellite, which took the images.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

@WierzchosKacper @doug_ellison I shall name him.... “mini Moon”

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

Today the Columbia Astronomy faculty voted to make the physics GRE optional in graduate school applications (permanently)

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 months

Tenured!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

8 years

Here is the TRAPPIST-1 planetary orbits scaled relative to two other busy multi planet systems

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

11 days

It’s October which means this is the month JWST will observe Kepler-167e looking for moons - this is the most Jupiter like exoplanet found to transit its star and I can’t wait to see what JWST finds! LET’S GOOOOOOO!!!

P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Last minute JWST proofing

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

The Terrascope. Turning Earth into a telescope -

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

First gravitational wave background and now this!

Corey S. Powell

@coreyspowell

1 year

For the first time, here is our galaxy seen in the "light" of neutrinos. A remarkable achievement by the team at @uw_icecube .

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

I spoke to two different high flying scientists in other fields this week that thought artist’s impressions of exoplanets were real images. These are literally geniuses in their fields! This really worries me and perhaps we need to re-evaluate this practice.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

She’s a thing of beauty

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 years

At last we can talk about our Hubble observations of Kepler-1625b! And we think we have something pretty interesting... You can check out the paper now at and grab some of the data products over at

Data files for “Evidence for a Large Exomoon Orbiting Kepler-1625b” by Teachey & Kipping (2018)

Hubble WFC3 observations of Kepler-1625 taken in October 2017 were reported in Teachey & Kipping (2018). In that work, we the authors find evidence for an exomoon associated with the planetary...

academiccommons.columbia.edu

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Proxima Centauri b is observationally confirmed with ESPRESSO! This is our closest star, very big news!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

astronomers doing statistics

Steve McCormick

@Quasilocal

5 years

Mathematicians doing physics:

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

New paper day! And it's on one of our favourite topics, #exomoons ! Here's a 🧵summarising our 115 page behemoth of a paper, "An Exomoon Survey of 70 Cool Giant Exoplanets and the New Candidate Kepler-1708 b-i", published today 👇

An exomoon survey of 70 cool giant exoplanets and the new candidate Kepler-1708 b-i

Nature Astronomy - A 4.8σ exomoon candidate is found around gas giant Kepler-1708 b, which orbits at 1.6 au around its star. It is the only candidate from a dedicated survey that...

www.nature.com

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

I think some women helped make it as well...

Universal Curiosity

@UniverCurious

5 years

The man-made object that has traveled farthest from our planet is Voyager 1, which is currently nearly 11 billion miles away on its path out of the solar system.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

There’s something deeply unsettling about the stupendous and unfathomable size of our Universe.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

7 years

Most ridiculous proof comment I've made in a while

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

8 months

Huge congrats to Ben Cassese for leading #CoolWorlds ’ accepted JWST proposal to search for #exomoons around Kepler-167e - the most Jupiter like transiting exoplanet. Very excited is an understatement! Commiserations to those facing rejections, trust me I know how that feels.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

The Earth has a radius of 1,162,529 Giraffes. From now on, all new planets will be quoted exclusively in Giraffe units, as no other unit is intuitive.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

Astronomers right now

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

So.... does this help my tenure case?

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

First detection of an isolated black hole just drifting between the stars. Amazing find. And coming in at just 7 Solar masses

An Isolated Stellar-Mass Black Hole Detected Through Astrometric...

We report the first unambiguous detection and mass measurement of an isolated stellar-mass black hole (BH). We used the Hubble Space Telescope (HST) to carry out precise astrometry of the source...

arxiv.org

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

New paper! Why do we live around a yellow dwarf and not a red (M) dwarf? M-dwarfs are far more numerous, longer-lived & appear to have rocky, temperate-zone planets often. Expectation should then be that we'd see one in our sky... but we don't: "The Red Sky Paradox" in PNAS today

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Very proud to introduce Dr Moiya McTier ( @GoAstroMo )! Dr McTier defended her PhD thesis today virtually @ColumbiaAstro . Serving as Moiya’s advisor has been a true privilege and pleasure. I’m very excited to see what comes next as she embarks on a career in #SciComm !

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Being an academic means you get rejected constantly, randomly and painfully. I don’t think being an academic makes you smarter. We’re just the stubborn residual baked onto the pan that won’t let go.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Let's amplify Black creators in STEM/education/climate change! The #CoolWorlds team put together this list of some creators we know, including YouTubers, Podcasters and Bloggers. Please check it out and support these creators and add folks we've missed!

BLACK CREATORS/SCIENTISTS/SCICOMMERS YOU CAN SUPPORT

BLACK CREATORS/SCIENTISTS/EDUCATORS/SCICOMMERS YOU CAN SUPPORT Here’s a list of some Black creators, podcasters, YouTubers, bloggers related to STEM, education, climate change and more that you can...

docs.google.com

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

Found out this week that I am now associating, not just assisting.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Chris, it’s one sigma. It’s not even conclusive evidence of DMS, let alone life. For reference, most genuine discoveries require 3-5 sigma to be credible.

Christopher K. Mellon

@ChrisKMellon

1 year

The James Webb telescope appears to have detected dimethyl sulfide (DMS) in the atmosphere of a planet ~125 light-years from earth. This is not conclusive proof of alien life, but to the best of our scientific knowledge, DMS is only produced by living organisms.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 years

I themed my astro intro class today on gravity around @tweetsauce ’s video. Students watched before hand then worked in pairs through problems. Great presentation, thanks for making!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

7 months

First time in Arizona, pretty spectacular (phones don’t do justice)

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

21 days

My Twitter feed is unrecognizable from a few years ago, it’s almost completely incoherent at this point

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 months

That was just staggering. You just can’t explain how it feels to see that. The Sun somehow appeared larger, a homogenous flat twilight, bright corona and even visible pink flares, the sounds of the insects and birds… best thing I’ve ever seen.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

I’ve been asked why I’m not tweeting more about the coronavirus and the simple answer is that I’m an astrophysicist, with no training in virology or epidemiology. Check the CDC for updates not astronomers!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

My Twitter feed is currently 90% astronomers explaining that you can’t sell planets.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

11 months

gloves are off

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

I guess filming outside during a snow storm was a bad idea

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Deep Nostalgia on Cydonia

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

90% is 1.6-sigma. Don’t put any faith in a 1.6-sigma prediction. Venusian Phosphine was >5-sigma! Vote vote vote!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

Happy Halloween from the #CoolWorlds Lab!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

You can travel for a billion light years in any direction and you won’t meet another human. In all that darkness, it costs nothing to be kind to one another.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

I'm just really tired of seeing stories like this where time and time there's conveniently no physical evidence. I'm sure we can conjure up good reasons for that, but don't expect me to believe something of this scale "because he said so". You may as well claim you saw an angel.

Daily Loud

@DailyLoud

1 year

A military whistleblower claims a secret UFO retrieval program within the U.S. government has recovered numerous “non-human origin technical vehicles” 🛸😳

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

Gentle reminder that the empirical mass-radius relation shows a pronounced transition at 1.23 (-0.22) (+0.44) Earth radii and planets above that radius are consistent with the mass-radius relation of Neptune and Uranus, not rocky planets such as the Earth.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

New friend is making work a bit harder…

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

A strange scientific reality. They’re *could* be evidence of alien technology buried in existing TESS, Gaia, etc data sets. A discovery that would without any exaggeration change the world. And yet, we invest minimal (often none) resources/effort to such investigations.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

I have questions about this thumbnail…

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

During lockdown I've been making some videos aimed for students working in exoplanets, in the transition between undergrad and graduate level. I hope you like them and maybe I might make more in the future! Here's a sample set.

Exoplanet Detection

www.youtube.com

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

11 months

ChatGPT4 continues to be completely useless to me. In summaries, in derivations, in exploring technical problems, even fact checking. It's wrong so often and frequently embarrassingly so. It seems really a long way off threatening our intellectual dominance on this planet.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Are we alone? Life started quickly on Earth. But complex, multicellular, intelligent life took far longer. In fact it emerged in the last quintile of Earth's habitable window for complex life. What do these facts tell us, if anything, about the propensity for life & intelligence?

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

astronomers just cannot resist subtweeting that they know something you don’t about tomorrow.... sheesh guys just hold your tongue until tomorrow

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Peter Gao

@PlanetaryGao

4 years

hey @EmSandford and @david_kipping what will this actually look like

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

7 years

Giants rings + huge number of Trojans as a possible explanation for #TabbysStar on arXiv tonight +very slick figure!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 months

This seems to imply that NASA has discovered 5602 exoplanets, but really many others have contributed and I think it’s better to say the “NASA Exoplanet Archive lists 5602 confirmed exoplanets”

Latest in space

@latestinspace

6 months

NEWS 🚨: NASA has now confirmed the existence of 5,602 exoplanets in 4,166 different planetary systems

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Big news from @NANOGrav next week! If you want to get some hints as to what we might hear about, check out latest episode of the #CoolWorldsPodcast with @Dr_CMingarelli that just dropped!

#3 Chiara Mingarelli - NANOGrav, Background Gravitational Waves,...

In this week's episode, David is joined by Chiara Mingarelli. Prof Mingarelli is currently moving from the University of Connecticut to Yale University and i...

www.youtube.com

Dr Chiara Mingarelli

@Dr_CMingarelli

1 year

Rumors of an upcoming announcement from @NANOGrav have not been grossly exaggerated. I can’t wait to share more with you on June 29th! More details about the event will be shared soon, for now, mark your calendars!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Lots of people have beliefs in non-natural phenomena or entities, despite lacking incontrovertible evidence with quantifiable reliability. I'm totally OK with that. What bothers is me when they go around insisting that everyone else must also believe in that same thing.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

Everything that has a beginning has an end. Even the stars die.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Columbia Astronomy will not require either the general or physics GRE test in graduate admissions this year. We are in the process of updating our websites to reflect this information, so be aware that this may take some days to propagate through.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

I just can’t get over the fact that here we have trees, subways, oceans, people, cities, insects and all this glorious complexity, but the other 99.99…% of the Universe is empty space punctuated by the occasional hydrogen atom.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

"I'm an astronomer” - boring - academic - same as astrology? "I seek to understand the nature of the Universe” - mysterious - ominous - maybe has superpowers?

Gavin Schmidt

@ClimateOfGavin

5 years

"I'm a climate scientist" - boring - academic - are we all doomed? "I read the entrails of the planet" - mysterious - ominous - maybe you should wash your hands?

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

Have any of my astronomy colleagues created (or know of) an online, open-access Python bootcamp really built for undergraduate astronomy especially?

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

The Dark Heart of our Galaxy

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

To me, the far more interesting question is why is there a 350% increase in astro degrees? It’s hard to believe astronomy is somehow more interesting than 20 years ago, but maybe that’s my own bias because I’ve always loved it?!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

WTF…

Pengfei Li

@PengfeiLi0606

1 year

#NewPaper published in ApJ Letters by @AAS_Publishing , reports a weird phenomenon: the evolution of radio sources precisely mimics a nonexpanding universe. Major results are in the plot. A thread explains it. Read it at:

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 years

There are around ten thousand million million million stars in the observable Universe - so try not to take yourself too seriously

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 years

Research paper title you’ll never see: “A Venus-sized planet discovered in the habitable-zone”

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Ready to meet your new favorite planet? Meet HD 183579b. A transiting ~500°C Neptune with an orbit 1/3 that of Mercury's & around a star which is a doppelgänger of the Sun. As one of the top 1% of brightest @NASA_TESS planet hosts, HD 183579b is a great target for #JWST . Thread.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Of all the wonderful words from #CarlSagan , I think this quote probably influenced me the most as a scientist...

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

Celebrating Sagan’s birthday tonight

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 months

come on tarrrrsssss!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 months

Space is bidirectional but time is not. You can revisit the house you grew up in but it’s not really the same home anymore. I often wrestle with this weird aspect of the Universe. All of those moments we experienced are lost, except in fuzzy memories. Is this a bug or a feature?

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

I know there’s sometimes negative chatter about posting personal achievements on social media, but I want to say that personally I love hearing about your successes, however large or small, and please do celebrate and share them!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

7 years

This @sciam article by @alexteachey is the one you should read to understand why we released our #exomoon candidate

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

7 years

Grading my final-Last Q asks students to predict humanity's future. Answers show young people lack hope for our future. This is our heritage

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 months

Is anyone else seeing that when you click the #Trump2024 hashtag little American flags fall across your screen but #Biden2024 does not? I’m even seeing a little flag on the hashtag itself in this tweet.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

@SPACEdotcom Or…. now hear me out… there might not

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Last minute JWST proofing

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

7 months

Jonathan O’Callaghan

@Astro_Jonny

7 months

It's official: JWST will hunt for moons around exoplanets for the first time ever! Two search programs have been selected for Cycle 3, which could give us our first ever true exomoon detections. Super exciting! Story by me @newscientist

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

It’s humbling to remember that from the Earth’s perspective, humanity’s entire existence is a fleeting, transitory page buried within its volumes of historical events. We are simply not that important and the Earth has and will continue to be here far beyond our limited horizons.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

Astronomy

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

15 days

@martinmbauer Not really. There’s no reason why the probability of abiogenesis could not be <10^(-22), in which case this is it. We have no fundamental theory for how life began. There could be a lot out there, but assuming so is not an evidence-based belief, rather it’s a position of faith.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 months

Look out for announcement on the Wow! Signal tomorrow 👇

Prof. Abel Méndez 🔭 🔬

@ProfAbelMendez

2 months

I recommend watching the #CoolWorlds podcast "The Wow! Signal After 45 Years" for tomorrow's results.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

Hot-Jupiters serve as an insightful lesson in astronomy. We now know they orbit less than 1% of Sun-like stars. And yet, they dominated the early years of exoplanet discovery, because of the enormous detection bias they enjoy.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

2 years

Too many pale blue dots…

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Congratulations to Dr Emily Sandford ( @EmSandford ) who has just defended (remotely)! Dr Sandford will be sorely missed at the Cool Worlds Lab. If you'll indulge me, I'd like to highlight her remarkable achievements...

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Update - sadly our plans to look for #exomoons with #JWST has been shot down. Very disappointed as we had 2 targets for which we could rigorously show that moons were expected to i) form, ii) persist and iii) be detectable with JWST.

P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

A common question I keep getting - "what is going on with #JWST + #exomoons ?" In short, JWST is the first machine humanity has ever built that capable of detecting moons akin to those found in the Solar System. Will JWST actually attempt this? I don't know.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 month

25 years since the first transiting exoplanet was spotted, wow time flies

Jonathan Fortney

@jjfplanet

1 month

Today, Sept 9th, is the 25th anniversary of the transit detection of exoplanet HD 209458b: 9-9-99!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

2 PhD's in 2 weeks! Today, we celebrate the successful thesis of defense of Dr @alexteachey ! As part my (apparently) new trend, I'd like to tell you a little bit about Alex and his thrilling thesis...

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

7 months

JWST Cycle 3 will be historic! The age of #exomoons is upon us

Jonathan O’Callaghan

@Astro_Jonny

7 months

We just learned what JWST will look at in its 3rd year of science. So much cool stuff! - Enceladus - 1000s of early galaxies - Direct collapse black holes? - TRAPPIST-1 - Pulsar planets - And yes... exomoons! Here's the wonderful science, by me, @SciAm

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

My decade in numbers... 1 PhD. 1 marriage. 2 postdoc fellowships. 91 peer reviewed papers. 13 exoplanets discovered. 1 exomoon candidate. 7 interviews. 4 job offers. 5 graduate students. 6 classes taught. 5.5M YouTube views & 100k subscribers. 2 children. Bring on the 2020’s!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

4 years

Fixed it. “Many astronomers believe there is intelligent life out there. Avi Loeb is no different”

The Economist

@TheEconomist

4 years

Many astronomers refuse to believe there is intelligent life out there. Avi Loeb is different

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 months

I wish disagreements started from a position of “I feel differently, let’s talk it out”, rather than vitriolic, rage-fueled tantrums demonizing each other. Is it the human condition that we can’t compassionately disagree with one another?

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

Startling result. It’s Jupiters all the way down…. Seems like planets really can form in a similar way to stars. Cue arguments on planethood and moon definitions!

Sean Raymond

@sraymond_astro

1 year

This is an incredible paper, with the discovery of a pile of free-floating planets in a young star-forming region (Orion/Trapezium). The craziest part: 9% are binaries! Like, two Jupiters orbiting each other -- but not orbiting a star!

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 months

The Moon is ~400x smaller than the Sun but ~400x further away => same angular diameter (0.5°) - which is why #TotalEclipse2024 happens! Interestingly, for the exomoon candidate K1625b-i, this is also true! From K1625b, star is (0.93±0.01)° and K1625b-i is (0.95±0.17)°. To scale:

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

3 years

Starlink

Morning Brew ☕️

@MorningBrew

3 years

Write a horror story for your industry using just four words

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 years

I may be biased, but I claim this is the best abstract of #Astrofest2018 @EmSandford

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

One way or another we will stop burning fossil fuels at current rates. The options are 1) it’s on our terms through a technological transition 2) we run out of fossil fuels to burn 3) civilization collapses to a dramatically reduced industrial output. 2 leads to 3. I pick door 1.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

6 months

Now and again, I like to reflect back on this image of our home planet. Society feels like a resistance to entropy, seeking harmony against forces of chaos. I suspect we’ll one day end by surrendering to the discord, but I believe we can fight that fate for a bit longer.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

5 years

The number of habitable planets per star, Eta Earth, varies by a factor of ~100 in the literature. These are all using the same data set, @NASAKepler , and considering the same stellar type, FGK dwarfs. Rarely do astronomers disagree so wildly on the same data! So why?! 1/5

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

8 months

I asked my five year old for questions he’d want me to tackle in a video… How did the Universe get created? Is the multiverse real? What happens inside of a black hole? What are aliens like? I feel like he’s the ultimate click bait machine.

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P(David|Kipping) ∝ P(Kipping|David) P(David)

@david_kipping

1 year

I am increasingly convinced that any civilization that goes to the enormous effort of building a Dyson sphere/swarm like megastructure would almost certainly want to extend the star's main sequence lifetime via starlifting. More here

Aliens Could Build Massive Megastructures to Save Dying Stars

A recent study suggests that advanced alien civilizations could keep their stars alive a few billion years longer, using methods we might be able to spot from Earth.

www.inverse.com

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