"There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a ...

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

A huge butterfly-shaped hole on the Sun may cause geomagnetic storms and auroras as solar wind heads directly for Earth.

After weeks of reduced activity, the sun erupted with three powerful flares on a single day. That could send solar flares toward Earth, impacting electronics and making it possible to view the ...

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

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

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 ...

White dwarfs may still host habitable planets. Conditions like tidal heating and migration shape their potential for life. The Sun will eventually die. This will occur when it exhausts the hydrogen ...

The asteroid known as 2024 YR4 is out of sight yet still very much on scientists’ minds. The building-sized object, which initially appeared to be on a potential collision course with Earth, is ...

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