All-Sky X-Ray Survey

An All-Sky X-Ray Survey Finds the Biggest Supernova Remnant Ever Seen

Our sky is missing supernovas. Stars live for millions or billions of years. But given the sheer number of stars…

4 years ago

NASA’s Rossi X-Ray Timing Explorer Retires

[/caption] For more than 16 years, 2,200 papers in refereed journals, 92 doctoral theses, and more than 1,000 rapid notifications…

13 years ago