The most complete genome yet for a truly unique marsupial - the Tasmanian tiger - suggests that, if the tigers hadn't been hunted to extinction, they might still have struggled to survive.
On Earth, you can find snow from the poles to mountaintops in the tropics. There are plenty of other places in the universe that are home to snow as well.
Meltwater from the glaciers supplies water to 800 million people, so that loss would mean serious consequences for water management, food security, energy production.
The intense wildfires in southern California are triggering air quality alerts. What do health experts know about how inhaling smoke affects human health?
A meteorologist and a music technologist are turning data from tropical storms into musical graphs. Can listening to storms help us understand them better?
This looks like an abstract painting, but it's a satellite image of the Tanezrouft Basin, a part of the Sahara Desert in central Algeria known as the Land of Terror.
In 1967, while helping analyze data from a new telescope, Cambridge student Jocelyn Bell observed a bit of "scruff" - the first evidence of a pulsar. The discovery changed our view of the universe.
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.