Cora Dvorkin discovered new possibilities for what dark matter could be. Now she’s devising unorthodox ways to identify it.
After an interstellar asteroid shot past the sun, scientists realized that there’s probably a lot of itinerant rocks out there.
Astronomers are puzzling over a paucity of planets in the galaxy measuring between 1.5 and two times Earth’s size.
Astronomers claim in a new paper that star motions should make it easy for civilizations to spread across the galaxy, but still we might find ourselves alone.
Subatomic particles called muons are thought to have streamed through the atmosphere and irradiated megafauna like the monster shark megalodon.
Dark matter may occasionally interact with minerals in the earth, leaving telltale tracks that physicists hope to decipher.
Planetary geologist Meenakshi Wadhwa uses Martian meteorites to trace the history of our solar system.
Get highlights of the most important news delivered to your email inbox