NASA researchers have found that since February, pandemic restrictions have reduced global nitrogen dioxide concentrations by nearly 20%.

New video shows Arecibo's receiver platform breaking loose and falling onto the radio telescope dish 400 feet below. No one was injured.

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 After 57 years as a world-class resource for astronomy, the iconic Arecibo telescope is to be decommissioned, or withdrawn from service, the NSF announced today.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.