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

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

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

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an ...

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting ...

Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

Two new studies show a briny, carbon-rich environment on the parent body of the Bennu asteroid was suitable for assembling ...

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

Samples of Bennu were brought back to Earth by NASA’s OSIRIS-REx spacecraft in 2023. Now, a pair of newly published papers ...