Comet 3I/Atlas is soon going to be closest to the Sun in its journey through our solar system. Here are five facts that shed ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

The solar system is a collection of celestial bodies held together by the sun's gravitational pull. Our solar system is located in the Milky Way galaxy. The solar system consists of eight planets, ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

A peculiar interstellar visitor, 3I/ATLAS, is challenging comet theories with its sunward tail and unusual composition. While ...

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of "Ask a Spaceman" and "Space Radio," and author of "How to Die in Space." Sutter contributed this article to ...

Our solar system is only one out of hundreds of stellar systems residing in the Milky Way galaxy. It’s comprised of the Sun and eight known planets, half of which are Terrestrial (sporting solid, ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...