Discoveries in our solar system and beyond.
An image taken and posted by astronaut Reid Wiseman to social media on Oct. 29, 2014 shows a sunrise, captured from the International Space Station (ISS). Wiseman wrote: 'Not every day is easy. Today was a tough one.' referring to the 28 October loss of the Orbital Sciences Corporation Antares rocket and Cygnus spacecraft, moments after launch at NASA's Wallops Flight Facility in Virginia. Reid Wiseman / NASA/EPA Buy Photo