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

Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in ...

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

Just as passengers don’t feel the plane’s speed while smoothly cruising, we don’t feel Earth’s movement because we’re ...

The sun is in its most active phase—solar summer—causing auroras and posing real risks to satellites, GPS, and power systems ...

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get visitors, most often in the form of (usually harmless) asteroids. Some even ...

The newly discovered asteroid is expected to tag along on the Earth's path around the sun for another 60 years.