NASA’s Chandra Observatory reveals a 25-year time-lapse of Kepler’s Supernova Remnant. Glowing debris expands at different ...

For 73 seconds, a crowd of excited Americans looked to the sky in wonder and awe as they waved goodbye to the crew aboard ...

NASA has released a decades-long video showing Kepler’s supernova remnant evolving in X-rays, using Chandra Observatory data ...

Astronomers have released a rare time-lapse video showing the violent expansion of a dead star over two decades. The footage ...