The number 40,000 might not sound particularly dramatic, but it represents humanity's growing catalog of near-Earth asteroids ...

A clear look at the discovery of 40,000 near-Earth asteroids, how scientists track them, and the missions working to keep our ...

A vast scar from a cosmic collision has been sitting in southern China, hiding in the landscape so effectively that people ...

A tiny black hole zipping through your body sounds like the kind of death dreamed up by a pulp-era sci-fi writer. Which, ...

Between the end of cosmic inflation and the formation of the first atoms, the universe experienced a fleeting but pivotal era ...