The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

The planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and Saturn ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

Samples from asteroid Bennu have delivered insights into the origins of Earth’s water and the organic molecules that may have ...

February will be an awe-inspiring month for astronomy enthusiasts who will be able to the see the solar system's planets ...

Have you ever wondered why the planets in our solar system align along a flat plane? Discover the science behind this cosmic arrangement, from the formation of the protoplanetary disk to the forces ...