RT NASAhistory: Today in 1995, these high-resolution images of Neptune taken by NASAHubble were released. Though we can't see Neptune with the naked eye, we can view the space-based telescope unaided. Hubble will be visible tomorrow morning at 5:02 AM ED…

When massive stars die at the end of their short lives, they light up the cosmos with bursts of light and material known as supernovae. The subject of this image, a spiral galaxy named NGC 4051 has hosted multiple supernovae in past years: …

Using Hubble to conduct a visible-light spectral analysis of Jupiter’s moon Europa, scientists have found that the yellow color on Europa's surface is sodium chloride, a compound known on Earth as table salt, which is also the main component of sea salt:…

This billowing tower of gas and dust rises from a stellar nursery called the Eagle Nebula. The soaring tower is 9.5 light-years (or about 57 trillion miles) high, about twice the distance from our Sun to the next nearest star: …

Shown here, NGC7773 is a beautiful example of a barred spiral galaxy. Astronomers think that these bar structures emerge later in the lifetime of a galaxy, as star-forming material makes its way towards the galactic center: …

Last month, Hubble celebrated 10 years since Servicing Mission 4 by releasing several Flickr albums. Check out all of our albums where you can download your favorite Hubble images for free: flickr.com/photos/nasahubble/a

in 2014, astronomers released a new view of 10,000 galaxies in the Hubble Ultra Deep Field. It included observations in visible, infrared & ultraviolet light, making it the most "colorful" picture yet assembled of the evolving univers…

Elliptical galaxies tend to be full of old stars and exhibit little or no new star formation. Messier 59 bucks this trend somewhat; the galaxy does show signs of star formation, with some newborn stars residing within a disk near the core: …

100 years ago, solar eclipse observers noted that stars near the Sun appeared out of place, verifying Einstein’s theory that gravity could bend light. Today, Hubble views distant galaxies whose light has been similarly bent by “gravitational lensing…

Millions of light-years away, these two galaxies are performing a gravitational dance that will lead to their merger in a galactic grand finale. Glimpse these & other interacting galaxies in Hubble's newest Flickr album: …

Servicing Mission 4 would not have been possible without the many people who supported the astronauts from the ground before, during, and after the flight. As we wrap up the 10 year anniversary, check out our new flickr album celebrating those people: …

RT NASAGoddard: 🚀 Ten years ago this month NASA_Astronauts lifted off to make NASAHubble more powerful than ever before.

Relive the amazing milestones from NASA's Hubble Servicing Mission 4 in this TwitterMoments.

⚡️ “Hubble Servicing Mission 4” by… twitter.com/i/moments/11284021

in 2009, after bad weather repeatedly prevented the shuttle from landing in Florida, Atlantis touched down at Edwards Air Force Base, returning its crew home safely and ending Hubble's final servicing mission. flickr.com/photos/nasahubble/3

Messier 90 is remarkable; it is one of the few galaxies seen to be traveling toward the Milky Way, not away from it. The galaxy’s light reveals this incoming motion in a phenomenon known as blueshift. To learn more: go.nasa.gov/2wj9ey1

in 2008, Hubble observed a third red spot alongside Jupiter's famous Great Red Spot and the smaller Red Spot Jr. in the giant planet's turbulent atmosphere: flickr.com/photos/nasahubble/4

Join members of the Hubble Tool Time team on YouTube or Facebook at 1pm ET to ask your questions about Hubble and servicing! 🚀 youtube.com/watch?v=bqSi_scM-a

Join John, EVA engineer Ed Rezac, and astronaut trainer Christy Hansen in this final episode of Hubble Tool Time to learn about creating a Fastener Capture Plate to capture 111 screws in order to repair the Space Telescope Imaging Spectrograph on Servici…

During Servicing Mission 4, a professional photographer was given behind-the-scenes access during astronaut training, prepping the shuttle NASAKennedy, and inside mission control during the flight. See some of the amazing photos in our new Flickr album: …

in 2009, astronauts aboard the Space Shuttle Atlantis bid farewell to Hubble as they released it back into space after completing five spacewalks to repair and upgrade the orbiting observatory. flickr.com/photos/nasahubble/2

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