On the side of the Sun facing Earth, a giant coronal hole appeared in the shape of an enormous love heart, many times the ...

Solar activity has been on an overall decline since the ‘80s and scientists were expecting us to plunge into a historic low ...

Earth has a number of mini-moons and quasi-moons. Mini-moons are objects that orbit our planet. But they make for fickle fans: They tend to swing around Earth for only a matter of months. One example ...

The equinox marks the arrival of fall in the Northern Hemisphere on Sept. 22. Are you ready for fall? The official arrival of fall is the autumnal equinox, which occurs in the Northern Hemisphere on ...

These celestial wonders can tell us a lot about the state of the atmosphere at home on Earth as well as on other planets.

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox marks ...

With advance warning, however, steps can be taken to reduce the risks. If an electrical grid is running near capacity, for ...

Did you see the bright star next to the moon? That was Venus, and part of a conjunction between the moon, Venus and the star ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, ...

A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet ...

Most places on Earth have seasons because our planet is on a tilt as it orbits the sun. But our star also has its own version ...

Gravity not only holds us firmly to the ground but also anchors oceans, keeps the atmosphere in place, and binds planets and ...