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

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

Dec. 19, 2024 — New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian objects (TNOs) and centaurs. The findings reveal the ...

The origin of the Moon has fascinated scientists for decades. The most widely accepted theory suggests that the Moon formed ...

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.

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

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

"The climate of this planet is extreme and nothing like that of Earth. The planet's dayside is so hot that elements typically ...

We really wanted to study an asteroid similar to a set of meteorites called chondrites, whose components formed in a cloud of gas and dust at the dawn of the solar system billions of years ago. The ...

NASAs Perseverance rover has collected a historic rock sample dating back to the Noachian era on Mars. This discovery could ...

New research reveals that Earth and Mars lost essential elements due to violent cosmic collisions, not early planetary ...

The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet ...