A 66 million-year-old mystery behind how our planet transformed from a tropical greenhouse to the ice-capped world of today has been unraveled by scientists. Their new study has revealed that Earth's ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new extrasolar planet orbiting a sun-like star. The newfound alien world, designated ...

The sheer scale of Carrazco-Gaxiola’s survey, titled “An All-Sky Spectroscopic Reconnaissance of More Than 2,100 K Dwarfs ...

This new image of a portion of the Helix Nebula from NASA’s James Webb Space Telescope highlights cometlike knots, fierce ...

Earth's magnetic field was struck by a "severe" solar storm Monday (Jan. 19), triggering vibrant auroras in the U.S. and ...

Jupiter and Saturn's different polar storms reveal clues about planet interiors: Saturn has harder bottom than Jupiter.

The planet is experiencing the most powerful solar event since 2003—and it's bringing spectacular Northern Lights.

Supergirl became the ultimate horse girl in the pages of early DC Comics when she dated her pet super-horse, Comet.

The names and symbols associated with the zodiac signs are deeply rooted in ancient mythology and traits attributed to each ...

Planetary rings explained: composition, formation theories, and a comparison of Saturn, Jupiter, Uranus, and Neptune’s rings.

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

A study has cast doubt on the idea that Jupiter's moon Europa, where NASA has sent a spacecraft, could have conditions to ...