Related topics: stars · massive stars · galaxies · white dwarfs · neutron stars

Cosmology looks beyond the standard model

What are the mysterious dark matter and dark energy that seem to account for so much of our Universe? Why is the Universe expanding? For the past 30 years, most cosmologists have looked to the 'standard model' to answer ...

NuSTAR finds new clues to 'chameleon supernova'

"We're made of star stuff," astronomer Carl Sagan famously said. Nuclear reactions that happened in ancient stars generated much of the material that makes up our bodies, our planet and our solar system. When stars explode ...

Caught for the first time: The early flash of an exploding star

NASA's planet hunter, the Kepler space telescope, has captured the brilliant flash of an exploding star's shock wave—what astronomers call the "shock breakout" of a supernova—for the first time in visible light wavelengths.

page 8 from 23