The Vera C. Rubin Observatory begins its 10-year survey of the southern sky, promising unprecedented discoveries in asteroids, dark matter, and supernovae. All data will be public.
International Asteroid Day on June 30 marks the Tunguska event and raises awareness of asteroid threats. Learn about planetary defense efforts and how you can help.
A tiny object passed between Hubble and a star 25,000 light-years away. It’s the first detection of a small Kuiper Belt object via microlensing, opening a new era in astronomy.