Tanya Harrison

Where did you venture to view the Great American Eclipse? About 100 people were lucky enough to make the trip of a lifetime for it: 38,000 feet above the Pacific Ocean, courtesy of Alaska Airlines.

Martian gullies were in the spotlight last week thanks to a NASA press release stating they were

Scientists showcased a wide range of features and processes on Mars' surface at last week's Lunar and Planetary Science Conference.

Mars expert Tanya Harrison shares the details on some of the newest discoveries about Mars’ history, including potential megatsunamis and the discovery of opals in Gale Crater.