Being indoors with other people is a recipe for spreading the coronavirus. But removing airborne particles through proper ventilation and air filtration can reduce some of that risk.

New guidance from the CDC says that 15 minutes of exposure – regardless of whether that occurs at one time – can result in transmission of the coronavirus.

SpaceX's satellites will populate the night sky, affecting how we observe the stars. And this is just the beginning of private satellite mega-constellations.

EarthSky Community members around the world are sharing their photos of this year's Leonid meteor shower. Beautiful! Thanks to all who contributed.

Heartbreaking news. After 57 years as a world-class resource for astronomy, the iconic Arecibo telescope is to be decommissioned, or withdrawn from service, the NSF announced today. The dish-type radio telescope - built into a natural depression in the landscape in Puerto Rico - appears to be headed for a "controlled disassembly."

Worrisome news regarding broken cables and engineering options at Arecibo Observatory, the iconic big radio dish in Puerto Rico.

Images of Diwali 2020 from an ashram in India.

Jim Bridenstine is leaving the post of NASA chief administrator.

November 13, 2020, will be the second of 2020's two Friday the 13ths. This Friday the 13th comes exactly 39 weeks - that is, the number 3 multiplied by the number 13 - before the next Friday the 13th on August 13, 2021. Whee!

The Clovis, some of North America’s earliest inhabitants, only made stone tools during a brief 300-year period from 13,050 to 12,750 years ago, new research shows.