Sea level rise is killing trees along the U.S. east coast, creating ‘ghost forests’ that are visible from space.

The chemical fingerprint of exoplanet HD 209458b's atmosphere reveals as many as 6 molecules and that it has migrated inwards from its birthplace much farther out in its star system.

Levels of atmospheric carbon dioxide (CO2) and methane continued to rise in 2020, said NOAA, despite the economic slowdown caused by the coronavirus pandemic response.

When sunlight filters through trees, you may get a corona effect where the rays from the light sources take on the colors of the rainbow.

A new analysis of data from the 1978 Pioneer Venus mission, by researchers at Cal Poly Pomona, finds evidence not only for phosphine, but also possible chemical disequilibrium in Venus' atmosphere, an additional possible sign of biological activity.

Most everyone around the world can enjoy watching the young moon sweeping through the constellation Taurus the Bull in mid-April 2021. You can identify Mars on these nights. The moon will occult - or pass in front of - Mars on April 17. Charts and info here.

Whether the raindrop is made of water on Earth, methane on Titan, or liquid iron on an alien world, a new study shows that all raindrops will fall to the ground at a similar size.

Small asteroid 2021 GW4 will pass extremely close to Earth on Monday, April 12, 2021. It'll pass just 12,313 miles (19,816 km) from Earth's surface, or about 5% the Earth-moon distance.

New images of the oldest known pairs of quasars, farthest and oldest yet seen, show that their home galaxies are colliding.

Long ago, the Coma star cluster represented the Lion's tufted tail. Today, we know it as an open star cluster, whose stars were born together and are still loosely bound by gravity.