New James Webb Space Telescope observations of a star cluster called NGC 346 are shedding light on how, when and where ...

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

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

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

The building blocks of life could have been delivered to Ceres by one or more space rocks from the outer asteroid belt.

Staring up at the night sky, you might see thousands of stars sprinkled above the horizon. It feels as though you can see so ...

NASA has shared details of what to look out for in the night sky this month, with the moon appearing alongside a parade of planets.

Welcome to this month’s edition of “What’s up in the sky?” February has a nice lineup of planets and some eye-catching ...

Mercury joins the night sky to complete a 7-planet alignment just after sunset for the end of February. Saturn leaves our ...