Containing countless galaxies, this parallel field observation is nearly as deep as the Hubble Ultra-Deep Field. When compared to other deep fields, it will help astronomers understand how similar the universe looks in different directions. via NASA http://ift.tt/1RUEhUy

“Frontier Fields” galaxy cluster MACS J0717, one of the most complex and distorted galaxy clusters known, is the site of a collision between four clusters. It is located about 5.4 billion light years away from Earth. via NASA http://ift.tt/1QPz8L0

During the afternoon of March 9, 2016, a total solar eclipse was visible in parts of southeast Asia. An eclipse occurs when the moon passes directly between Earth and the sun. The MODIS instrument on NASA’s Aqua satellite captured this image of the total solar eclipse moving across the south Pacific Ocean at 03:05 UTC on March 9, 2016. via NASA http://ift.tt/1W99nJh

On April 8, 2010, STS-131 mission specialists Stephanie Wilson of NASA, Naoko Yamazaki of JAXA, Dorothy Metcalf-Lindenburger of NASA, and Expedition 23 flight engineer Tracy Caldwell Dyson (top left) work at the robotics workstation on the International Space Station, in support of transfer operations using the station’s Canadarm2 robotic arm . via NASA http://ift.tt/21Wd4c1

The mysterious mountain Ahuna Mons is seen in this mosaic of images from NASA’s Dawn spacecraft. via NASA http://ift.tt/1QBSTcl

Showcased at the center of this Hubble Space Telescope image is an emission-line star known as IRAS 12196-6300, located just under 2,300 light-years from Earth. via NASA http://ift.tt/1VVtVog

Expedition 46 Commander Scott Kelly of NASA is seen after returning to Ellington Field, Thursday, March 3, 2016 in Houston, Texas after his return to Earth the previous day. via NASA http://ift.tt/1p1pcaC

Astronaut Scott Kelly Returns to Houston after a Year in Space via NASA http://ift.tt/1Skeya6

The Soyuz TMA-18M spacecraft is seen as it lands with Expedition 46 Commander Scott Kelly of NASA and Russian cosmonauts Mikhail Kornienko and Sergey Volkov of Roscosmos near the town of Zhezkazgan, Kazakhstan on Wednesday, March 2, 2016 (Kazakh time). via NASA http://ift.tt/1Lw1RaL

NASA astronaut Scott Kelly shared a series of five sunrise photographs on Tuesday, March 1, 2016, as he prepared to depart the space station and return to Earth aboard a Soyuz TMA-18M spacecraft. Kelly and Russian cosmonauts Mikhail Kornienko and Sergey Volkov are scheduled to undock their Soyuz at 8:02 p.m. EST and land at 11:25 p.m. via NASA http://ift.tt/1LSMWSJ