What they witnessed near a glacier in Antarctica made them rethink their beliefs. Yet nobody ever arrived at a firm ...

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 ...

A giant S-shape structure, around 10 times wider than Earth, recently appeared in the center of the sun, moments before our ...

Forecasters warn of possible G2 geomagnetic storms as a colossal coronal hole sends solar wind racing our way.

It's more than 35 times wider than the Earth, and it could spark northern lights over the weekend over parts of North America ...

An AI model trained on years of data from NASA’s Solar Dynamics Observatory can predict the sun’s future appearance and ...

AP photographer Dmitri Lovetsky had been trying to photograph a plane flying across the disk of the sun for several days.

NASA has responded to speculation that mysterious interstellar object 3I/ATLAS is actually an alien starship preparing to invade Earth.

For more than sixty years, a tiny asteroid has been moving in step with Earth, hidden from view until recently. Astronomers now confirm that this small body, named 2025 PN7, is traveling in a special ...

While the weather is still warm almost everywhere and the leaves have yet to turn, fall is almost here. The official arrival of the season is the autumnal equinox, which occurs in the Northern ...

Astronomers believe they’ve discovered another so-called quasi-moon of Earth, though it’s likely been circling undetected in near space for decades. Dubbed 2025 PN7, this mini moon is actually an ...

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