Lucy Mission @LucyMission Twitter profile

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Lucy Mission

@LucyMission

3 years

The faring has separated from the Atlas V and Lucy has been released for it's journey. Now the solar arrays begin to unfurl.

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Lucy Mission

@LucyMission

3 years

Lucy has lifted off, and the crowd watching from Banana Creek, Kennedy Space Center are thrilled!

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Lucy Mission

@LucyMission

3 years

Almost 1 week since launch and almost 2 million miles from Earth! The launch perfectly placed Lucy where it needed to be, no trajectory correction needed! Check out this nice overview of the #LucyMission by @colkin and Simone Marchi

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Lucy Mission

@LucyMission

3 years

#CountdowntoLaunch ! 11 days until the start of the #LucyMission 's epic voyage! In order for Lucy to explore 6 asteroid systems over 12 years, we will need to drive the spacecraft. Lucy's 5 Deep Space Maneuvers and 3 Earth Gravity Assists will keep the spacecraft on target!

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Lucy Mission

@LucyMission

3 years

#LucyMission successful launch, separation, and solar array deployment. And a beautiful sunrise to greet the day. PI report: Lucy is far out!

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Lucy Mission

@LucyMission

3 years

Congrats @NASAWebb on reaching L2! We ❤️ Lagrange points, and everything that orbits them!

NASA Webb Telescope

@NASAWebb

3 years

🏠 Home, home on Lagrange! We successfully completed our burn to start #NASAWebb on its orbit of the 2nd Lagrange point (L2), about a million miles (1.5 million km) from Earth. It will orbit the Sun, in line with Earth, as it orbits L2. #UnfoldTheUniverse

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Lucy Mission

@LucyMission

2 years

Good to see you Lucy! #SpotTheSpacecraft

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Lucy Mission

@LucyMission

2 years

The Lucy Spacecraft is getting ready for its first #EarthGravityAssist ! The solid curves show where Lucy (and the Earth) have traveled in the past year, while the dashed curves show what comes next. Lucy is currently only 9 million miles (38x the distance to the Moon) from Earth!

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Lucy Mission

@LucyMission

3 years

This photo might not look like much, but it is one of the first images returned by the #LucyMission from space! The star field is courtesy of Lucy's Terminal Tracking Camera (T2Cam). All of Lucy's science instruments passed their preliminary tests with flying colors!

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Lucy Mission

@LucyMission

2 years

Lucy is now about 6.5 million miles from Earth, and #DARTMission is only a bit over half a million miles from Didymos and Dimorphos! Go DART!

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Lucy Mission

@LucyMission

2 years

At closest approach during #EarthGravityAssist , Lucy will be deep into low Earth orbit, below the current altitude of the International Space Station! Stay tuned for info about how you can #SpotTheSpacecraft from Earth if you live in Australia or western North America.

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Lucy Mission

@LucyMission

10 months

Just hours left until the #LucyMission 's first close up look at an asteroid! Check out for the encounter timeline and latest updates! Find links to the full story in one place here:

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Lucy Mission

@LucyMission

3 years

The left solar panel appears to have not fully deployed, but as the spacecraft is safe, stable, and power-positive there is no rush as team members work to understand the situation. The the current status can be found at :

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Lucy Mission

@LucyMission

3 years

Set your alarm clocks! Almost go time!

NASA's Launch Services Program

@NASA_LSP

3 years

🚀 Tomorrow at 5:34 a.m. ET, @NASA 's #LucyMission will begin its journey to the Trojan Asteroids! Tune in as we #CountdownToLaunch with live coverage starting at 5 a.m. ET. 📺: 💻:

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Lucy Mission

@LucyMission

10 months

Happy Halloween! We are expecting quite a treat tomorrow when Lucy has its first close encounter of the asteroidal kind! Learn how and why NASA is visiting the small main belt asteroid, Dinkinesh, here:

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Lucy Mission

@LucyMission

4 years

One year from today will be the final day of Lucy's Launch window! After Lucy has launched, it will take around 6 years to reach the #TrojanAsteroids . But once it is there, is will stay on an orbit that passes through the asteroid swarms for hundreds of thousands of years!

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Lucy Mission

@LucyMission

5 years

Lucy will be visiting not just 7 asteroids, but 8! Eurybates has a satellite!

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Lucy Mission

@LucyMission

2 years

Just 8 days until the first #EarthGravityAssist ! Lucy is now less than 10 times as far away as the moon!

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Lucy Mission

@LucyMission

3 years

Happy Birthday Lagrange! Here at the #LucyMission our two favorite Lagrange points are of course L4 & L5, but which are yours? Learn more about Lagrange points here!

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Lucy Mission

@LucyMission

3 years

The Lucy Team is VERY EXCITED about the launch and eagerly awaits the solar array deployment.

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Lucy Mission

@LucyMission

3 years

And Lucy is now safely encapsulated in its fairing! Bon Voyage!

NASA's Launch Services Program

@NASA_LSP

3 years

The Lucy spacecraft is being prepped for encapsulation in its @ulalaunch payload fairings. Today's photos are some of the last captured before it is sealed away for launch! 🚀

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Lucy Mission

@LucyMission

2 years

The #LucyMission has completed Step 1 of its Solar Array Deployment Attempt! The team successfully ran both of the deployment motors together for a short amount of time. Now the team will analyze the spacecraft data and prepare for Step 2! Full info at:

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Lucy Mission

@LucyMission

4 years

One year from today will be day 8 of Lucy's launch window! Each day Lucy only has a short amount of time (~1 hour) when @NASAKennedy is in the right spot so that the Earth's rotation can give Lucy the extra ooph it needs to get started on its journey to the #TrojanAsteroids !

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Lucy Mission

@LucyMission

2 years

Sept 26, @NASA 's #DARTMission will collide with the asteroid Dimorphos in the first ever #PlanetaryDefence test mission. The #LucyMission is back in the neighborhood and has a chance to observe this historic event! Join Lucy in watching the DART impact!

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Lucy Mission

@LucyMission

3 years

37 days until launch! Lucy passed its powered tests with flying colors. The spacecraft is now ready to be mated to the launch vehicle and the next step will be fueling! Get excited for Lucy's launch with the great cartoon series, new episodes every week!

NASA Solar System

@NASASolarSystem

3 years

Meet Lucy, space archaeologist. Lucy is getting ready for a trip to the Trojan asteroids, leftover rocks from the same material that formed the outer planets. Enjoy episode 1 of “Lucy’s Journey,” a weekly web series about our #LucyMission , set to launch October 16.

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Lucy Mission

@LucyMission

3 years

Can you believe it? It's been 1 month since the #LucyMission launch! This has been a busy month! Learn more about Lucy's first month in space here:

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Lucy Mission

@LucyMission

6 years

We have a launch vehicle! In October 2021 Lucy will launch on a Atlas V 401 rocket

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Lucy Mission

@LucyMission

2 years

#SpotTheSpacecraft update: The Lucy Team in Boulder and Littleton, Colorado were stuck with overcast skies, but two intrepid team members made a roadtrip to Scottsbluff, Nebraska and spotted Lucy with a telescope and shared what they saw. Whoot! #LucyMission #EarthGravityAssist

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Lucy Mission

@LucyMission

5 years

Congrats to the Lucy Team! Lucy has passed the Critical Design Review. Time to really build this spacecraft!

NASA’s Lucy Mission Clears Critical Milestone - NASA

NASA’s Lucy mission successfully completed its Critical Design Review on Oct. 18.

www.nasa.gov

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Lucy Mission

@LucyMission

6 years

Lucy confirmed! Plans are ready and now we start putting the pieces together!

NASA’s Mission to Jupiter’s Trojans Given the Green Light for Development - NASA

NASA’s mission to perform the first reconnaissance of the Trojans, a population of primitive asteroids orbiting in tandem with Jupiter, passed a critical

www.nasa.gov

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Lucy Mission

@LucyMission

4 years

Lucy has passed Key Decision Point D! We are now officially approved to move on to phase D, where we assemble, test and launch this spacecraft! 🚀

NASA’s Lucy Mission One Step Closer to Exploring the Trojan Asteroids - NASA

NASA’s first mission to explore the Trojan asteroids is one step closer to launch. The Discovery Program’s Lucy mission passed a critical milestone and is

www.nasa.gov

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Lucy Mission

@LucyMission

3 years

Just two months until the #LucyMission 's launch period opens! What are your plans for 5:34am ET on October 16? Set your alarm and cheer Lucy on as we launch this first ever voyage to the #TrojanAsteroids !

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Lucy Mission

@LucyMission

2 years

Less than 24 hours until Lucy's first #EarthGravityAssist ! Lucy is now closer to the Earth than the Moon. You can't see Lucy right now, but Lucy can see you! Head outside and #WaveToLucy Check to see if Lucy will be visible from your location

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Lucy Mission

@LucyMission

3 years

Re-watching this artist at work is a great way to start the weekend!

ULA

@ulalaunch

3 years

Every wonder how mission artwork is painted on the #AtlasV 4-meter payload fairing? Check out this time lapse of artist Dennis DuBose painting the @LucyMission artwork and @NASA logo at our Harlingen, TX facility. #LucyMission

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Lucy Mission

@LucyMission

2 years

Congrats #DARTMission ! Amazing! We can't wait to see what Lucy was able to observe when the data is downlinked at the end of October!

NASA

@NASA

2 years

IMPACT SUCCESS! Watch from #DARTMIssion ’s DRACO Camera, as the vending machine-sized spacecraft successfully collides with asteroid Dimorphos, which is the size of a football stadium and poses no threat to Earth.

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Lucy Mission

@LucyMission

2 years

The Lucy Spacecraft successfully observed last weekend's #LunarEclipse !

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Lucy Mission

@LucyMission

4 years

Joseph-Louis Lagrange died #OnThisDay in 1813, but we can remember him as we look at the final #LagrangePoint , L5! This point makes an equilateral triangle with the Sun and planet, just like L4, but L5 trails the planet in its orbit.

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Lucy Mission

@LucyMission

4 years

Happy 2021! This year Lucy will begin its 12 year long journey to the #TrojanAsteroids . Hope that this year will be full of adventures for all!

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Lucy Mission

@LucyMission

2 years

On October 16, the Lucy spacecraft will fly within 219 miles of Earth, using the planet's gravity to propel it farther out into the solar system in a technique knowns as an Earth Gravity Assist. Let the countdown begin! #LucyMission #EarthGravityAssist

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Lucy Mission

@LucyMission

2 years

Lucy started observing the Didymos/Dimorphos system this morning, and is excitedly waiting for the anticipated #DARTMission impact! Watch live starting at 6pm ET/2pm PT

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Lucy Mission

@LucyMission

5 years

T-minus two years to launch! Two years from today Lucy's launch window will open. At 4:59 am ET on Oct 16, 2021, Lucy may be on its way to the #TrojanAsteroids !

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Lucy Mission

@LucyMission

4 years

One year from today marks the middle of Lucy's launch window! #LucyFact : Though Lucy will go farther from the Sun than any other solar powered spacecraft, it won't break records for #solarpanel size. Higher efficiency panels mean that record is held by @ESA 's #Rosetta mission!

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Lucy Mission

@LucyMission

2 years

With less than two hours to go until the mission's first #EarthGravityAssist Lucy celebrates exactly one year in space. Happy Birthday, Lucy!

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Lucy Mission

@LucyMission

3 years

Weather on launch day is looking great!

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Lucy Mission

@LucyMission

1 year

There you are, Dinkinesh! The #LucyMission 's first look at its first asteroid target.

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Lucy Mission

@LucyMission

3 years

Road trip! #LucyMission PI, Hal Levison, wrapped up the L-3 press briefing today and invited the Lucy communications team to drive out to the vertical integration facility at Kennedy Space Center. Lucy is way up there in the nose cone waiting for launch on Saturday!

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Lucy Mission

@LucyMission

5 years

Happy 284th Birthday to Joseph-Louis Lagrange! In 1772, Lagrange found what are now known as Lagrange points -- imaginary points in space that the Trojan Asteroids orbit around.

The Lagrange Points

The Trojan asteroids orbit around imaginary spaces know as Lagrange points.

lucy.swri.edu

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Lucy Mission

@LucyMission

10 months

@ltelkins @SoulDead777 @planet4589 It's a moon! Just a little shy in the high resolution image! So excited to see what surprises @MissionToPsyche will find!

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Lucy Mission

@LucyMission

6 years

It's a sign! The @NASA_Dawn mission found Lucy on the surface of Ceres!

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Lucy Mission

@LucyMission

3 years

We are at L-3! Watch the Lucy Press Briefing at 1pm ET / 10 am PT to get the most up to date information on Lucy's outlook for launch in the pre-dawn hours of Saturday Oct 16! A non-expert opinion, weather is currently looking beautiful for launch!

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Lucy Mission

@LucyMission

2 years

Happy New Year from the #LucyMission Team!

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Lucy Mission

@LucyMission

11 months

Happy 2nd Launchiversary, Lucy! Two years in space!

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Lucy Mission

@LucyMission

11 months

Less than one month until the #LucyMission gets a close up look at its first asteroid, the small Main Belt asteroid, Dinkinesh! Check out the new resources page for more fun Lucy content as we get ready for this first encounter!

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Lucy Mission

@LucyMission

2 years

What does your #LunarEclipse photo look like? It will take some time to download the images that Lucy is taking right now!

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Lucy Mission

@LucyMission

2 years

With the discovery that the #TrojanAsteroid Polymele has a satellite, Lucy is now planning to visit not 7, not 8, but 9 asteroids on its 12 year voyage! Check out our latest post for a behind-the-scenes look at how this satellite was discovered!

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Lucy Mission

@LucyMission

4 years

Lagrange points are the 5 imaginary points in space relative to a central object (e.g. the Sun) and an object going around it (e.g. a planet) where, if you place something at exactly that point, it will stay in the same relative position to the other two objects.

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Lucy Mission

@LucyMission

2 years

Looking for something fun to do today? Visit and get a 3D view of everything going on in the solar system! Check out the view that Lucy has of the #DARTMission and fast forward in time to see Lucy's #EarthGravityAssist !

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Lucy Mission

@LucyMission

2 years

10 Asteroids! 🥳🎉💫

NASA Solar System

@NASASolarSystem

2 years

Our #LucyMission was already set to break records by visiting 9 asteroids during its 12-year mission. Now it will be adding another asteroid flyby to its 4-billion-mile journey. The new flyby will also provide a test run for later encounters. 🛰🪨 More:

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Lucy Mission

@LucyMission

2 years

Next steps for Lucy's solar array deployment just reported on NASA's #LucyMission blog:

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Lucy Mission

@LucyMission

3 years

Lucy has passed its Pre-Ship Review! The Lucy team did an amazing job assembling and testing this spacecraft under challenging conditions, and is excited to send Lucy on this last 1,500 mile journey to Florida before its 4 billion mile journey exploring the #TrojanAsteroids !

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Lucy Mission

@LucyMission

2 years

Noticed how bright Jupiter has been? The Earth is almost as close as it ever gets to the giant planet, and so is Lucy! While the #TrojanAsteroids share an orbit with Jupiter, they never get close to it. So Lucy will never get a better view of Jupiter than you can get right now!

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Lucy Mission

@LucyMission

3 years

Girl Scout troop 65367 in Englewood, Colorado learned all about the #LucyMission to earn their Space Science badges. They shared this sweet photo from their launch celebration with us. Girl Scouts + Lucy = Cookies (obviously!) @GSColo

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Lucy Mission

@LucyMission

3 years

Today marks #100Days until the #LucyMission 's first launch window opens! Join us each day as we count down to Lucy's epic journey to the #TrojanAsteroids and celebrate the process of turning a #NASA mission from a vision into reality!

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Lucy Mission

@LucyMission

4 years

Count down to the #TrojanAsteroids ! Just 250 days until Lucy's launch window opens! 🚀

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Lucy Mission

@LucyMission

6 years

@DrBrianMay @NASANewHorizons Go Lucy!

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Lucy Mission

@LucyMission

3 years

#CountDownToLaunch ! Tomorrow is Launch Day! The spacecraft is safely stowed, integrated on the rocket, and sitting on the launch pad. The weather looks great for launch tomorrow at 5:34am ET! Join us virtually! What a great #ILoveLucyDay !

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Lucy Mission

@LucyMission

4 years

Officially T-1 days until @NASAPersevere 's Launch! Only 442 days, 21 hours, and 8 minutes until Lucy will be sitting on the exact same launch pad, one day until our own launch! Good Luck Perseverance! 🚀 #CountdownToMars Image Credit: @ulalaunch

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Lucy Mission

@LucyMission

2 years

#MaytheFourthBeWithYou ! Next week, the Lucy team is planning to use the Force (of two small motors) during the first step of the #LucyMission 's solar array redeployment attempt. For full details, go to May the Force be with us all!

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Lucy Mission

@LucyMission

5 years

Today we are remembering Lucy Vodden, who died 10 years ago today. As a child she inspired Julian Lennon to make a drawing, which inspired John Lennon to write a song, which inspired a team of anthropologists to name a fossil, which inspired us to name a mission.

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Lucy Mission

@LucyMission

4 years

We are officially one year until the Lucy Launches! The Institute of Human Origins is celebrating with us by opening the Lucy in Space Contest for Middle and High School Students!

Lucy in Space Contest

To celebrate 1 year until the Lucy spacecraft launches, the Institute of Human Origins is launching the Lucy in Space Contest!

lucy.swri.edu

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Lucy Mission

@LucyMission

3 years

All packaged up and ready for a safe flight!

Tory Bruno

@torybruno

3 years

Like a soft, warm blanket, #LucyMission is encapsulated inside the #AtlasV 4-meter payload fairing that will protect it during launch to begin an epic journey to Jupiter’s Trojan asteroids. #ToryTimelapse

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Lucy Mission

@LucyMission

4 years

Congrats to the Lucy Team!

NASA’s Lucy Mission Passes Critical Mission Milestone - NASA

Last week marked the completion of a major milestone on the path to spacecraft assembly, test, and launch operations for NASA’s Lucy mission.

www.nasa.gov

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Lucy Mission

@LucyMission

5 years

Day 1 of this month's PIMR, the monthly meeting to review the status of the mission. Enjoy this great diagram of the Lucy Trajectory.

Petr Scheirich

@PScheirich

6 years

The trajectory of the planned @NASALucy2Trojan mission among the Main Belt asteroids and the Trojans, with the six bodies to be visited highlighted.

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Lucy Mission

@LucyMission

3 years

2021 has been an incredible year for the #LucyMission ! Through this challenging year, the Lucy team worked together to assemble a spacecraft and launch it safely! There will be still be challenges in the New Year, but together we are optimistic this team can overcome anything!

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Lucy Mission

@LucyMission

2 years

Remember to get out tonight and #ObserveTheMoon ! Lucy is now only 4.5 million miles from the Earth, that's less than 19 times the distance from the Earth to the Moon.

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Lucy Mission

@LucyMission

2 years

Happy Perihelion Day! The Earth closer to the Sun today than it will be for the rest of the year. Lucy is still traveling away from its Sun after its first perihelion last July.

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Lucy Mission

@LucyMission

3 years

Where is Lucy now? Thanks to @SpaceMarschall , now you can keep track of the progress of the #LucyMission straight from the main page! And if you want more details, head on over to or

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Lucy Mission

@LucyMission

4 years

One year from today will be the second to last day of Lucy's launch window! Remember: Always have a backup plan! If Lucy is unable to launch during its window next year, it can skip the first Earth flyby/gravity assist and directly launch in to the same trajectory in Oct 2022!

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Lucy Mission

@LucyMission

3 years

#LucyMission roll out! The VIF is on the right, Lucy on its Altas V is heading towards the launch pad on the left.

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Lucy Mission

@LucyMission

2 years

As of last week, Lucy is headed back to Earth. Since its launch last year, Lucy had been moving away from the Earth. Now it is returning as the #LucyMission prepares for the first Earth Gravity Assist this October! Check out the full tour here:

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Lucy Mission

@LucyMission

4 years

The #LucySpacecraft now has all of its scientific instruments! With the delivery and integration of L'Ralph Lucy has all the "eyes" it will need to learn about the #TrojanAsteroids !

NASA’s First Mission to the Trojan Asteroids Installs its Final Scientific Instrument - NASA

With less than a year to launch, NASA’s Lucy mission’s third and final scientific instrument has been integrated onto the spacecraft.

www.nasa.gov

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Lucy Mission

@LucyMission

6 years

Only 1000 days until the launch of the Lucy Mission! Learn more at:

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Lucy Mission

@LucyMission

4 years

Counting down! Just 500 days until the launch window open up for the #LucyMission !

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Lucy Mission

@LucyMission

6 years

Now is the Age of Small Worlds! @NASANewHorizons , @NASA_Dawn , @OSIRISREx , @NASALucy2Trojan , @NASAPsyche , NEOWISE, and DART all working together to answer Big Questions about our Solar System!

NASA ScienceCasts

@NASAScienceCast

6 years

Small Worlds hold keys to questions about our solar system and the origin of life on Earth.

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Lucy Mission

@LucyMission

6 years

Lucy PI Hal Levison with @DrBrianMay at the @NASANewHorizons flyby of #UltimaThule !

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Lucy Mission

@LucyMission

5 years

Mark your calendars! 13 years from today will be the grande finale of the #LucyMission , a close up look at the binary asteroids Patroclus and Menoetius!

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Lucy Mission

@LucyMission

3 years

Big day for the #LucyMIssion ! We've reached Key Decision Point E! Today @NASA gives the green light for the spacecraft to actually launch and move on to the longest mission phase: Phase E - Operations! This is where all the science happens!

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Lucy Mission

@LucyMission

2 years

Lucy's four cameras and instrument pointing platform (IPP) have been tested and are all in good shape for the mission! Check out some of the first images here: #LucyMission

Checking in on the Cameras of NASA’s Asteroids-Bound Lucy Spacecraft - NASA

On Feb. 14, NASA’s Lucy spacecraft, which is in the first few months of its journey to the Trojan asteroids, obtained a series of calibration images with

www.nasa.gov

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Lucy Mission

@LucyMission

5 years

We are getting the telescope ready to send to Australia to observe the Lucy target Orus as it passes in front of a star! By observing this occultation, we can really pin down Orus's orbit and learn more about its size (and even its shape!)

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Lucy Mission

@LucyMission

3 years

The #LucyMission will travel to a record breaking seven #TrojanAsteroids and one main belt #asteroid during a single mission! Here's the trajectory from a vantage point rotating with Jupiter. Visit to learn more!

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Lucy Mission

@LucyMission

3 years

You may have read about Lucy's launch vehicle in the news. Launch is always a tricky business, and we are thrilled that everything is lined up for the @ULAlaunch #AltasV and Centaur to take Lucy to the #TrojanAsteroids ! Just a bit over a month until encapsulation!

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Lucy Mission

@LucyMission

4 years

We are 1 year from launch window day 19! #LucyFact -- by the next presidential election Lucy will have travelled 16 AU (the distance from the Earth to the Sun), yet will only be 1/4 AU from Earth! This path allows the Earth's gravity to help Lucy get out to the #TrojansAsteroids !

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Lucy Mission

@LucyMission

3 years

Today would have been John Lennon's 81st birthday. In just one week, Lucy will finally be in the sky! And she's even bringing a diamond with her!

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Lucy Mission

@LucyMission

3 years

@NASAWebb is scheduled to launch tomorrow at 7:20am ET! Webb will observe the #LucyMission #TrojanAsteroids in the near and mid-infrared, with unparalleled spectral resolution. Lucy's high spacial resolution images will allow us to place these into context!

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Lucy Mission

@LucyMission

3 years

Today is L-10 days until the #LucyMission launch window opens! ✅ Spacecraft is encapsulated ✅ Launch vehicle has been tested Do you want a behind the scenes look as we #CountdownToLaunch ? Sign up for the Mission's Virtual #NASA Social!

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Lucy Mission

@LucyMission

4 years

It is official! The paper announcing the discovery of the satellite around the #LucyMission target Eurybates has been published. Looking forward to learning a lot more about this satellite when Lucy flies by in August 2027!

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Lucy Mission

@LucyMission

5 years

Once you are done designing, it is time to build! PI Hal Levison and DPI @colkin are at @LockheedMartin where they are testing engineering models of the flight hardware.

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Lucy Mission

@LucyMission

5 years

The Lucy Team is getting ready for the Mission Critical Design Review. This will be the big transition between designing and actually building the spacecraft!

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Lucy Mission

@LucyMission

2 years

Lucy Fun Fact: At closest approach during Lucy's Earth Gravity Assist, the spacecraft will come withing 351km (219 miles) of the planet's surface. Only 28 days to go! #EarthGravityAssist #LucyMission #CountDownToEGA

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