This is an artist's concept of Neptune's tiny moon Hippocamp. Only 20 miles across, it may actually be a broken-off fragment from a much larger neighboring moon, Proteus! Read the full story: https://t.co/OvX2MvjYzD https://t.co/eQMN7gACD5

#HubbleClassic Astronauts captured this photo of Hubble at the end of its 2nd servicing mission, after equipping it with 2 new instruments: the Space Telescope Imaging Spectrograph (STIS) and the Near Infrared Camera and Multi-Object Spectrometer (NICMOS). https://t.co/Tik67TheU0 https://t.co/zUPjtTJIK8

Happy #PresidentsDay! To celebrate, we share this inspirational quote from President Gerald Ford, who signed the budget that officially started the Hubble Space Telescope project. https://t.co/MNrmXVnmqO

#HappyBirthday to Galileo Galilei who was born on this day in 1564! His observations revolutionized the field of astronomy including his discovery of Jupiter's four largest moons. This video shows 3 of the 4 "Galilean moons" as observed by Hubble in 2015: https://t.co/IRw7oGfTGH https://t.co/tsolgB9sNM

#HubbleFriday Hubble has captured the smoking gun of a newborn star! These five objects, visible in blue in the top center of the image, lie within NGC 1333, a reflection nebula full of gas and dust found about a thousand light-years away from Earth: https://t.co/y9erxz69kz https://t.co/CBaBreyexs

Happy Valentine's Day from the Hubble Space Telescope! For more space-themed cards: https://t.co/tdCWBajVWc https://t.co/567Whw25zC

#OTD in 1997, astronaut Steve Hawley, who deployed Hubble using the space shuttle's robotic arm in 1990, used the shuttle's arm to capture Hubble from orbit in preparation for its second servicing mission. #HubbleClassic https://t.co/K7qIYrqwSw

On International Day of Women & Girls in Science we remember the "Mother of Hubble," Nancy Grace Roman, who passed away in December at the age of 93. Despite discouragement, she studied math & science and became NASA’s 1st chief astronomer. #WomenInScience https://t.co/9yRJwCfybl https://t.co/gcA20Luhq5

#HUbbleFriday Astronomers used the foreground galaxy cluster, SDSS J0915+3826, to study star formation in galaxies lying so far away that their light has taken up to 11.5 billion years to reach Earth: https://t.co/bcQGBr5Tnf https://t.co/74bEA9SeSX

During its routine yearly monitoring of the weather on our solar system's outer planets, Hubble uncovered a new mysterious dark storm on Neptune and provided a fresh look at a long-lived storm circling around the north polar region on Uranus: https://t.co/ErZTfFwZfF https://t.co/NzHhhxOK8n

#HubbleClassic #OTD 9 years ago, scientists released this map of Pluto, made from Hubble observations, providing details about Pluto's surface 5 years before @NASANewHorizons made its historic flyby: https://t.co/0LdwHx6Ld5 https://t.co/825HjDGGh4

#HubbleFriday This image reveals an ancient, glimmering ball of stars called NGC 1466. It is a globular cluster that is slowly moving through space on the outskirts of the Large Magellanic Cloud, one of our closest galactic neighbors: https://t.co/72SE4rVZbU https://t.co/P5dnPk7T76

Because of its 13-billion-year-old age, and its isolation — which resulted in hardly any interaction with other galaxies — this dwarf spheroidal galaxy is the astronomical equivalent of a living fossil from the early universe: https://t.co/VVZ1OzTcBf https://t.co/gBvtTXxcaZ

#HubbleClassic The sharpest view of the Orion Nebula ever captured by Hubble revealed never-before-seen stars, swirls of gas shaped by massive stars born in the giant stellar nursery, and dusty disks around young stars where planets might also be forming: https://t.co/I3sXeqwavY https://t.co/wf0jiX8NP3

Hubble spotted a wayward spiral galaxy losing its gas as it plunges toward the center of the massive cluster and is roughed up as it plows through the intergalactic medium: https://t.co/gRFlIlhzRj https://t.co/ZAcpchpYZF

Wide Field Camera 3 was brought back to full operational status and completed its first science observations just after noon EST today.  

For more info: https://t.co/ETEDYPwDtd

NASA has moved closer to conducting science operations again with the Wide Field Camera 3 instrument, which suspended operations on Tuesday, Jan. 8. Today the instrument was brought back to its operations mode.  For more details: https://t.co/ETEDYPwDtd

NASA continues to work toward recovering the Wide Field Camera 3 instrument, which suspended operations on Tuesday, January 8 due to voltage levels within the instrument that were out of range.  For more details: https://t.co/ETEDYPwDtd

This very distant quasar has been magnified and split into three images due to the gravitational field of a foreground galaxy. The quasar would have gone undetected if not for the power of gravitational lensing, which boosted its brightness 50x #AAS233 https://t.co/fLZnQXBVYe https://t.co/Uv3lYjRBNx

At 17:23 universal time, the Wide Field Camera 3 suspended operations due to a hardware problem. Hubble will continue to perform science with its other instruments while the Wide Field Camera 3 anomaly is investigated: https://t.co/ETEDYPwDtd