This composite Hubble Space Telescope image captures the positions of Comet Siding Spring and Mars in a never-before-seen close passage…
Watch Live Feed from the Virtual Telescope HERE! The Comet and the Planet: comet C/2013 A1 Siding Spring meets planet…
(NASA) - The extensive fleet of science assets, particularly those orbiting and roving Mars, have front row seats to image and…
(NASA, STSci) - A team of scientists using NASA's Hubble Space Telescope have made the most detailed global map yet…
(NASA) - The NuSTAR Telescope (Nuclear Spectroscopic Telescope Array) has found a pulsating, dead star beaming with the energy of about…
This image from the Mars Hand Lens Imager (MAHLI) camera on NASA's Curiosity Mars rover shows the first sample-collection hole…
The sun emitted a mid-level solar flare, peaking at 3:01 p.m. EDT on Oct. 2, 2014. NASA's Solar Dynamics Observatory,…
In the first week since it was inserted into Mars orbit, the newest addition to the small Martian fleet of…
As if we needed more bad news about global warming, data from the National Snow and Ice Data Center (NSIDC)…
Seeing Starlight Through a Planet's Rim A Neptune-size planet with a clear atmosphere is shown crossing in front of its…