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A 22-year-old NASA observatory is slowly falling towards Earth and scientists are trying to save it
For more than two decades, NASA's Neil Gehrels Swift Observatory has acted as one of astronomy's fastest cosmic first ...
Informed by science from the Smithsonian Astrophysical Observatory and astronomers worldwide, this “documentary that you can walk through” visualizes the cosmos in a 3-D introduction to the universe ...
This sparkling galaxy is home to a set of supernova remnants that showed variable brightnesses over 14 years of data ...
The James Webb Space Telescope is weighing in on a longstanding debate over why we don’t see more of the most massive red supergiant stars go supernova. NASA/ESA/CSA/Northrop Grumman In recent years, ...
In recent years, whenever astronomers have gazed into the night sky, they’ve noticed something peculiar: Some of its massive stars—the true titans of the cosmos—appear to be missing. The largest of ...
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