Scientists using NASA's Hubble Space Telescope were able to come up with a new, more accurate way to measure "dark energy," by taking advantage of a the way Abell 1689, code name for a massive cluster of galaxies, distorts light.
Credit: NASA JPL
A galactic "super-volcano" in the massive galaxy M87, as witnessed by NASA's Chandra X-ray Observatory and NSF's Very Large Array
Doug Wheelock and fellow astronaut Tracy Caldwell Dyson on the International Space Station. They needed to take three spacewalks to swap out a failed ammonia coolant pump module.
Some galaxies date back almost 10 billion years, soon after the Big Bang. The most distant galaxies stand out in the infrared, rendered here in green and red
Credit: NASA/JPL-Caltech/Texas A&M
This star cluster known as Kappa Crucis contains just over 100 stars, and is approximately 10 million years old.
What's lighting up this small, faint nebula? Scientists are poring over this recently -released image from the Hubble Space Telescope but they still don't have any explanation for the bright sharp arc visible in the photograph.
Credit: NASA, ESA, Hubble, R. Sahai (JPL)
Wide Field Image of Westerlund 1
A blast from the past: The first photograph ever taken on the surface of Mars. Viking 1 sent back this shot minutes after the spacecraft landed on Aug. 20, 1975.
NASA's testing out the feasibility of one day using solar sails. Think of it as something akin to a sea sail, where the wind propels a sailboat. In this case, solar sails relying on sunlight would power vehicles through space.
Courtesy of the Hubble Space Telescope, this image of a spiral galaxy within the Coma Cluster of galaxies, lies 320 million light-years away from Earth in the northern constellation Coma Berenices