In this cosmic snapshot, the spectacularly symmetrical wings of planetary nebula Hen 2-437 show up in a magnificent icy blue hue. via NASA http://ift.tt/1O6EZc8

NASA astronaut Peggy Whitson trains underwater for a spacewalk at the Neutral Buoyancy Laboratory (NBL) at Johnson Space Center in Houston. Whitson is scheduled to launch to the International Space Station in late 2016 as part of Expedition 50/51. via NASA http://ift.tt/1muWexu

The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA’s Aqua satellite captured this image of cloud streets and sea ice in the Sea of Okhotsk on Feb. 8, 2016. Cloud streets are long parallel bands of cumulus clouds that form when cold air blows over warmer waters and a warmer air layer rests over the top of both. via NASA http://ift.tt/1osc2Tu

STS-63 astronauts Bernard A. Harris, Jr., payload commander (right), and C. Michael Foale, mission specialist (left), are ready to exit space shuttle Discovery’s airlock for a spacewalk on Feb. 9, 1995. On this extravehicular activity (EVA), which lasted 4 hours and 38 minutes, Bernard Harris became the first African-American to walk in space. via NASA http://ift.tt/20TmLnI

On the evening of Feb. 7, 2016, Expedition 46 Commander Scott Kelly snapped this photo of Levi’s Stadium in Santa Clara, Calif. from the International Space Station, writing, “Got to see the #SuperBowl in person after all! But at 17,500MPH, it didn’t last long. #YearInSpace” via NASA http://ift.tt/20Rhu07

This image, taken by the NASA/ESA Hubble Space Telescope, shows a peculiar galaxy known as NGC 1487, lying about 30 million light-years away in the southern constellation of Eridanus. via NASA http://ift.tt/1nLNNyI

The nitrogen ice glaciers on Pluto appear to carry an intriguing cargo: numerous, isolated hills that may be fragments of water ice from Pluto’s surrounding uplands. These hills individually measure one to several miles or kilometers across, according to images and data from NASA’s New Horizons mission. via NASA http://ift.tt/1nPILSw

In this Feb. 3, 1995, image taken onboard space shuttle Discovery on flight day one of the STS-63 mission, astronaut Eileen M. Collins — the first woman to pilot the shuttle — is at the pilot’s station during a “hotfiring” procedure prior to rendezvous with the Russian Mir Space Station. via NASA http://ift.tt/1o6BSMq

Expedition 46 flight engineer Tim Peake of ESA captured this photo on Jan. 29, 2016 from the International Space Station, as the robotic arm in Japan’s Kibo laboratory successfully deployed two combined satellites: AggieSat4 built by Texas A&M University students, and BEVO-2 built by University of Texas students. via NASA http://ift.tt/1PdBVNe

NASA’s Super Guppy aircraft readies to transport an Orion spacecraft from the Michoud Assembly Facility in Louisiana to Kennedy Space Center in Florida. via NASA http://ift.tt/1P9X4be