Longtime NASA astronaut Don Pettit is set to return from his fourth trip to space on Saturday night. Here are some of his ...

U.S. National Science Foundation NOIRLab astronomers, using data from the James Webb Space Telescope and the Chandra X-ray Observatory, have discovered an early universe supermassive black hole ...

Pettit has been dazzling fans back on terra firma with his amazing photography during his seven-month mission, with standout ...