Five Indian students win four gold and one silver medal at IOAA in Hanoi. Check medal winners and India's historic 2026 Olympiad record.

After putting on a show in the predawn sky earlier this month, Comet Tsuchinshan-ATLAS (C/2023 A3) was eventually lost in the glare of the Sun. But now that it has crossed behind the Sun from our point of view, it is emerging in the early evening sky and ...

Radio telescopes are losing important data as the government and companies look to increase Earth-to-space communications.

Professor Nicolás Cuello explores crafting worlds illuminated by many suns in this astronomy and astrophysics focus

In 2020, a NASA spacecraft swooped in on Bennu, a near-Earth asteroid, and scooped up rock and dirt from its surface then began the voyage home in May 2021. The spacecraft will eject a capsule full of asteroid samples that will parachute to the Utah Test and Training Range to be studied by scientists.

Stunning pictures of nebulae, stars, the moon and more took top prizes in this year's astrophotography competition, organised by the Royal Observatory in London

Follow the foot traffic. Sidewalk astronomers often set up at street fairs, outdoor events, nightlife hotspots, or by any venue where a lot of people tend to pass by. If you want to set up at an event, check to see if you need permission from its organizers.

Looking for a sky event this week? Check out our full Sky This Week column. October 3: Dione transits Saturn We're back at Saturn this evening with the planet as the main attraction as the ringed world reaches opposition today at 8 A.

India's five-member team won four gold medals and one silver at IOAA 2026 in Hanoi, Vietnam. The result sealed a landmark year for India, with all 24 students across the five senior-level science Olympiads finishing with either a gold or silver medal.