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

It's the last clearly observed supernova in the Milky Way, Gassel said.

"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...

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

The CosmicWatch device costs only $100 to make, making it accessible for both high school students and spacecraft operators.

Decades in the making, NASA's X-ray timelapse shows a stellar explosion expanding into space at up to 2% the speed of light.

A new video shows the evolution of Kepler's Supernova Remnant using data from NASA's Chandra X-ray Observatory captured over ...

For every galaxy that's visible from Earth, there are nine smaller ones that we can't see, even with all the technology we've developed. That's 90% of all space stuff in the observable universe that ...

New high-resolution images show that novae are anything but simple stellar fireworks. One exploded with multiple gas streams colliding almost immediately, while another shockingly delayed its eruption ...

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

Astronauts on the International Space Station were not only treated to a sight from Earth's atmosphere recently but also ...