Neutron stars are the densest objects in the universe outside of black holes, packing more than a Sun’s worth of…
Most people know black holes slow down time near their event horizons. But there’s a weirder effect—some black holes actually…
Our Sun may have a long-lost twin. Not an identical twin, but a sibling formed from the same cloud of…
The Moon shouldn’t have rust—there’s no liquid water, and no atmosphere to sustain oxidation. But in 2020, scientists confirmed hematite,…