Preparations for an upcoming spacewalk continued aboard the International Space Station (ISS) as astronauts conducted health assessments and worked on their spacesuits. On Tuesday, the crew also dedicated time to biology,

People who appreciate good astrophotography will no doubt be familiar with the work of Don Pettit, a veteran NASA astronaut who is closing in on having lived 500 days of his life in space. Pettit is now in the midst of his third stint on the International Space Station,

He used long exposure camera techniques to capture a jaw-dropping image from 257 miles up on the International Space Station.

One of the many advantages of being in space is having a front-row seat to the most anticipated cosmic events. NASA astronaut Don Pettit, flight engineer for the Expedition 72 crew, proved that when he witnessed Comet ATLAS from the International Space Station,