CNN’s Call to Earth Day 2025 embraces the powerful theme “Guard Your Green Space,” urging individuals, communities, and nations to take bold, collective action to protect the natural world ...

Starlink satellites fall to Earth faster during increased solar activity, study finds by Bob Yirka, Phys.org edited by Lisa Lock, reviewed by Robert Egan Editors' notes ...

A huge "super-Earth" with an extreme climate that results in it being habitable for only part of its orbit has been discovered orbiting a star 2,472 light years away. And the most remarkable thing ...