The Sun occasionally unleashes enormous bursts of energy called coronal mass ejections, and scientists warn that a powerful solar superstorm could one day strike Earth. Such an event could disable ...

Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.

A new paper in Monthly Notices of the Royal Astronomical Society argues the simplest answer may work: contact binaries like Arrokoth can form directly during the gravitational collapse of a dense ...