The early days of our universe are still a mystery.  

Hubble used the light-bending power of a massive galaxy cluster to peer into the early universe, and found something surprising. The first stars and galaxies might've formed sooner than we thought: https://t.co/8kAAQ4qivp https://t.co/P7unpc3yk4

Hubble data from 25 years ago helped this astronomer prove the existence of a newfound planet. Read more from the McDonald Observatory: https://t.co/NwFp26BE3j

At the heart of our Milky Way galaxy is a supermassive black hole. 

About 3.5 million years ago, it unleashed a burst of energy that our very distant hominid ancestors likely saw as ghostly light overhead. Hubble is uncovering clues about this explosion: https://t.co/kSEB8wdbwH https://t.co/WQg7cKuu2B

The Hubble team congratulates @NASA and @SpaceX on a successful #LaunchAmerica! https://t.co/hCSQbgwiST

#HubbleFriday One large stellar latte to go!  

Far away in the Ursa Major constellation is the swirling, frothy galaxy NGC 3895. This barred spiral galaxy was first spotted by William Herschel in 1790 and later observed by Hubble: https://t.co/1mUToz5pvx https://t.co/FFEXMLxpaj

The heart of star cluster Westerlund 2 isn’t a great place to make a planet. 🪐 Planet-forming clouds of dust around stars near the core are being blasted away by bigger, brighter neighbor stars. Find out more from this new Hubble study: https://t.co/eN1XuRtxmU https://t.co/qlqh9lw9Ra

#HubbleClassic The Hubble Space Telescope bears NASA's retro "Worm" logo. This week, another “Worm” rides into space on the rocket that will launch NASA astronauts from @NASAKennedy Space Center once again.   #LaunchAmerica #TheWormIsBack https://t.co/d8I3yz6swo

Take a look back in time! Today’s @NASAUniverse tour stop explores Hubble’s deep-field imagery. CANDELS, the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey, has been one of Hubble’s largest projects. https://t.co/SZkXT6ZmKA

Nancy Grace Roman helped transform the Hubble Space Telescope from a dream to reality. Now, a new space telescope launching in the mid-2020s has her name. In this video, learn more about the “Mother of Hubble” and @NASARoman! https://t.co/u34xshM3WA

#HubbleFriday This Hubble image highlights the dwarf irregular galaxy KK 246 (or ESO 461-036), located in a region of mostly empty space 150 million light-years across called the Local Void. Other galaxies in the picture lie farther away, beyond the void: https://t.co/2U2bg2I0nk https://t.co/eV3k0o8qt9

The future @NASAWFIRST observatory has been renamed the Nancy Grace Roman Space Telescope in honor of the "Mother of Hubble." We can’t wait for all the fascinating discoveries it’ll make! https://t.co/H8GOa97SnA

After watching the video, what's your verdict?

Astronauts Megan McArthur and John Grunsfeld were on the crew of the last servicing mission to the Hubble Space Telescope.
 
John was tethered to the telescope, while Megan operated a robotic arm that released Hubble back into space.
 
Who do you think touched the telescope last? https://t.co/FUqJXv9H6O

#HubbleClassic #OTD in 2009, astronauts released Hubble into space one final time after completing the telescope's last servicing mission: https://t.co/oBYzbWBeIy https://t.co/0EFwBece2x

#HubbleFriday This Hubble image captures the beautiful spiral galaxy NGC 5861, located about 85 million light-years away in the constellation Libra. The galaxy has hosted two known supernovae, one discovered in 1971 and the other in 2017: https://t.co/cIrKTI7RTa https://t.co/3RdSF5Q8kA

John Grunsfeld is a physicist, served as NASA’s Chief Scientist and flew to the Hubble Space Telescope three times to service it in space. John will be answering some of your questions today! https://t.co/vtkdnUacwJ

Ed Rezac is an engineer who helped design the tools and procedures the “spacewalking” astronauts used to work on the Hubble Space Telescope while on orbit. Ed will be answering some of your questions today! https://t.co/31YDKuPZZ3

Christy Hansen trained the EVA (spacewalk) astronauts who serviced the Hubble Space Telescope and supported them during real-time mission operations on orbit as an EVA flight controller. Christy will be answering some of your questions today! https://t.co/zS5Mh8Xu0g

Fun fact! Astronauts traveled to the Hubble Space Telescope for five servicing missions. Their work is the reason why Hubble has lasted 30 years in space, showing us images of the universe as a more colorful and stranger place than we ever imagined. https://t.co/2bq5lz2H6u

Just as cars need maintenance, sometimes spacecraft need fixing, too. 🛠️When astronauts work on spacecraft in orbit, it's called space servicing.
 
Have questions about servicing? Leave a reply in the comments for a Q&A from 12-2 p.m. EDT on 5/14 with astronauts and experts! https://t.co/OjoyzjSq98