An analysis of radioactive chemicals in ice cores indicates one of the most powerful solar storms ever hit Earth around 7176 B.C.
The fastest-spinning white dwarf on record completes a full rotation in 25 seconds.
Scientists need to pin down the lifetime to better understand fundamental physics questions, like how the universe evolved.
Understanding these ancient objects that sometimes produce cometlike tails may help explain how the solar system formed.
Sorting out space rocks and setting the record straight.