Science editor Alan Boyle's blog: Colorful videos prove that the astronauts aboard the International Space Station had the best seats in the house for last month's northern lights.

NASA is looking for at least two U.S. firms to design and build space transport systems for ferrying astronauts to and from the International Space Station, program managers said Tuesday.

A bright fireball streaked across the nighttime sky over eastern Texas and Oklahoma last week, and was caught on video by a police car camera.

Astronaut Janice Voss, a veteran of five spaceflights and a former science director for a NASA exoplanet-hunting spacecraft, has died after a battle with cancer. She was 55.