Astrophoto: Star Trails Over Kitt Peak
Our pal Rob Sparks said he had always wanted to try creating a star trails picture and this is his…
Is Anything Left of ISON? Spacecraft Continue to Monitor Comet’s Remains
Could Comet ISON possibly still be alive? The latest high-resolution images available from the STEREO spacecraft are still showing some…
Where Does Gravity Come From?
Gravity. The average person probably doesn’t think about it on a daily basis, but yet gravity affects our every move.…
Could Particle ‘Spooky Action’ Define The Nature Of Gravity?
Quantum physics is a fascinating yet complicated subject to understand, and one of the things that freaks out physics students…
Saturn’s Mysterious Hexagon Behaves Like Earth’s Ozone Hole
A raging hurricane is creating a "suck zone" at Saturn's north pole. The handy Cassini spacecraft recently captured a bunch of…
How Do We Learn About An Alien Planet’s Size And Atmosphere?
The fun and challenge of exoplanet science is the planets are so far away and so tiny. Figuring out what…
How Far is Mars from Earth?
This article was originally published on Aug 10, 2012. We've updated it and added this cool new video! Sending spacecraft…
SpaceX SES-8 Flawlessly Beautiful Dec. 3 Launch – Photo and Video Gallery
CAPE CANAVERAL AIR FORCE STATION, FL - The flawless blastoff of SpaceX’s next generation Falcon 9 rocket on Tuesday Dec.…
A Naked Eye Nova Erupts in Centaurus
If you live in the southern hemisphere, the southern sky constellation of Centaurus may look a little different to you…
Galaxy May Host ‘Death Spiral’ Of Two Black Holes Becoming One
Two black holes in the middle of a galaxy are gravitationally bound to each other and may be starting to…