Atlantic hurricane season starts today. Experts are forecasting a 75% chance that the 2018 season will be near- or above-normal, thanks in part to a weak El Niño.
This year's list includes a towering tree and a tiny, single-celled protist, as well as a rare great ape and the fossil of an Australian marsupial lion.
A new study suggests our planet got its 1st snowfall about 2.4 billion years ago, after a lot of land rose swiftly from the sea and set off dramatic changes on Earth.
Astronauts aboard the International Space Station captured these images of Mount Shasta while orbiting over northern California at different times of the year.
'What we are witnessing is major hydrologic change,' they said. Over 14 years, Earth's wet land areas got wetter. Dry areas got drier. They also reported multiple hot spots resulting from groundwater depletion.
Report on CFC-11 - an illegal chemical responsible for ozone-depletion in Earth's atmosphere - now apparently on an upswing again. Meanwhile, new direct evidence the ban on CFCs is working and the ozone hole is recovering.
Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.