Life on Earth had to begin somewhere, and scientists think that “somewhere” is LUCA—or the Last Universal Common Ancestor.

We may be starting to get a grasp on what kick-started life on Earth – and it could help us search for it on other planets ...

But are we truly the masters of our domain, this little blue planet? And could we really end all life on Earth? What if we dropped every nuke at once? Would that get every bug, including roaches ...

Although the movie’s participants refuse to disclose classified information, some of their statements elicited “audible gasps ...

Down to their very DNA, astronauts’ bodies can change in weird and sometimes significant ways, particularly during a long flight high above the Earth: They start to elongate, often developing a taller ...

Mar. 5, 2025 — Whether it's rivers cutting through earth, lava melting through rock, or water slicing through ice, channels all twist and ... Ancient Glaciers Helped Life Evolve Feb. 25, 2025 ...

Roughly 65 million years ago, an asteroid strike would wipe out 70 percent of all life on Earth. But it wouldn’t happen all at once. The lack of sunlight that followed the asteroid impact meant ...

A study shows that electrical charges in sprays of water can cause chemical reactions that form organic molecules from inorganic materials. The findings provide evidence that microlightning may have ...