science
Scientists find 1,800 supernovae, may help measure the rate the universe expands
A supernova is an exploding star that reached the end of its life and is sometimes brighter than the Sun.
science
Early moments of dying 170 million-year-old supernova seen in amazing detail
Days before it ran out of fuel, Kepler picked up on tiny changes in the exploding star's intensity.
science
Exploding stars have made the key ingredient in sand and glass, a study suggests
Silica makes up around 60% of the Earth's crust composition, and a major ingredient in sand.