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

AUSTIN (KXAN) — The ongoing search for oceans in our solar system is taking us ... world’s moons occur as they orbit the planet. Based on that wobble, the model can determine how much water ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien astronomers could also be scanning Earth.

The eight planets in our solar system orbit the sun in roughly the same plane, because they all originally formed from the same disc of debris around the sun. The line the sun traces across the ...

Because that's how long it takes to orbit the sun when you're that far away. Tim Peake introduces Dallas Campbell. Dallas shows an orrery – a mechanical model of the solar system. Before the ...

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

"We were very surprised to see that the same tiny plasma jets appear to be driving both the fast and the slow solar wind." ...

Prevailing solar system formation theories indicate that these planets should have at least started out following perfectly circular and share the same orbit. But today, their paths are slightly ...

They developed a 3D model that simulates how the solar system's orbital architecture may ... With each mass, she modeled 2 million years of orbit to find what kind of architectural impact each ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.