The Arecibo Observatory may be no longer, but its thoughtful message continues to inspire astronomers and scholars worldwide.

Finding evidence for the first life ever to emerge on planet earth is a long, tough slog. But oddly enough, real answers may ultimately come from Mars.

Scientists estimate a 27% chance of intelligent alien life beyond our galaxy using a new model. The research integrates the ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

These 'pre-birth truthers', many whom come from America, have taken to social media to share their testimonies, saying ...

Life on Mars may have been found — before it was accidentally destroyed during a NASA mission nearly 50 years ago, one ...

Chromosphaera perkinsii, a billion-year-old species, may reveal multicellularity’s origins, predating the chicken and egg.

Everything we thought we knew about theicy continent could be shattered by a stunning discovery in Antarctica. Scientists in ...

Based on the fossil evidence we have, single-celled microbes appeared on Earth before larger cellular life like plants and animals. But which kinds of microbes were the very first kind of life?

Life on Earth has faced catastrophic events before, but certain extinction-level threats could completely erase humanity. Here are seven of the most daunting possibilities. Image Credit ...

The astronauts remained tight-lipped about the nature of the medical issue that had left an as-yet-undisclosed crew member ...