Researchers in Europe have now confirmed the universality of free fall - which Einstein called his most fortunate thought - with extremely high precision. To do it, they spent 8 years tracking a triple star system containing a millisecond pulsar.

Solar Orbiter swept as close as 50 million miles (77 million km) to our sun's surface. Now scientists are at work testing the spacecraft’s 10 science instruments, including the 6 telescopes on-board. New images, to be released in mid-July, will be the closest of the sun ever captured.

EarthSky is joining the grassroots effort to #ShutDownSTEM and #Strike4BlackLives on Wednesday, June 10. Thousands of researchers around the world have pledged to pause their work on Wednesday to support the ongoing Black Lives Matter movement and efforts against racism in the scientific community and society at large.

NOAA reports that atmospheric carbon dioxide (CO2) measured at Hawaii’s Mauna Loa Observatory for May 2020 was the highest monthly reading ever recorded.

Researchers say they've identified the cleanest air on the planet - free from particles caused by human activity - over the Southern Ocean, which surrounds Antarctica.

History was made again Sunday, with the successful docking of SpaceX Crew Dragon with the International Space Station. Astronauts Bob Behnken and Doug Hurley are aboard. There are more activities to come, which you can watch online. Links here.

How captive animals are coping with the sudden emptiness of the world's zoos and aquariums.

A new study has confirmed the presence of microplastics in birds of prey, including hawks, ospreys and owls. The accumulation of microplastics in birds’ digestive systems could lead to poisoning, starvation and death.

Satellites see environmental changes during the coronavirus lockdown, including reduced pollution.

With careful observation, you can start to recognize a particular squirrel, or that certain cardinal pair that hangs out on your feeder.