Data from the telescope indicated that the incredibly hot and small world was surrounded by a thick layer of gas, likely ...

Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing over a period of roughly 30 million years, but that would come to a halt ...

A Carnegie-led team of astronomers detected the strongest evidence yet of an atmosphere around a rocky planet beyond our ...

Scientists have discovered that Earth’s inner core may not be fully solid. A rare “superionic” state of matter could explain ...

Pluribus Episode 8 reveals the hive mind’s master plan, and it may have started long before the signal from Kepler-22b.

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...

Where there’s a tree, there’s usually a forest. But not always. A biologist describes some of the loneliest trees on planet Earth. When we think about isolation in nature, we usually picture islands ...

How common are Earth-like planets in the universe? When I started working on supernova explosions, I never imagined that my ...

Proto-Earth is the term used to describe the earliest days of our planet, the body from which our pale blue dot evolved. At this stage of its geological evolution, it likely existed only for a ...