explosions of stars, at least one type of stellar annihilation results in a “reverse shock wave” after its initial blast. In a new study, a team of astronomers using NASA’s Chandra X-ray Observatory, ...

Part of the shock wave is shrinking rather than expanding. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A powerful shock wave traveling ...

NASA released a new video that shows how a supernova morphs and moves over a period of 13 years. Cassiopeia A, or Cas A, as the debris field is known, was probably generated after a star's explosion ...

This delicate, colorful bubble in space hides the remains of a supernova. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA telescopes have ...

When a star explodes as a supernova, it shines brightly for a few weeks or months before fading away. Yet the material blasted outward from the explosion still glows hundreds or thousands of years ...

It’s like doing up a shirt with the first button fastened incorrectly,” said Young-Wook Lee of Yonsei University, setting the frame for the flaw at the heart of modern cosmology. For the last three ...

In 1572, Danish astronomer Tycho Brahe noticed a bright new body that had appeared in the heavens. He called it a new star—stella nova—though it was actually the explosive end of a very old one—what ...

Although supernovae are energetic outward explosions of stars, at least one type of stellar annihilation results in a “reverse shock wave” after its initial blast. In a new study, a team of ...

TEHRAN (Tasnim) – A powerful shock wave traveling through a cloud of gas left behind by the explosive death of a star has a bizarre quirk: Part of it is traveling in the wrong direction, a new study ...