SpaceX introduced a new Falcon 9 rocket into its fleet on Sunday (Nov. 23), with he launch of 28 satellites for its Starlink ...

NASA has an audacious plan to save a space telescope by using a rocket launched midair from a former passenger airliner.

Long before rockets and satellites reached space, the Crab Nebula stood out as a steady beacon of high-energy light. At its ...

NASA’s Swift space telescope is running out of altitude, but a privately funded spacecraft is being readied to push it higher ...

NASA is teaming with Katalyst Space Technologies to rescue the Swift Observatory, whose orbit is decaying toward reentry by ...

NASA unveiled close-up pictures on Wednesday of the interstellar comet that’s making a quick one-and-done tour of the solar ...

The dish picked up radio signals from missile launches thousands of miles away [BBC] The secret Cold War role played by a ...

Scientists flew the XL-Calibur telescope on a high-altitude balloon to measure polarized X-rays from Cygnus X-1. These ...