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

Beautiful photos of the six planets aligned in the night sky have emerged online. Mars, Jupiter, Uranus, Neptune, Venus and ...

Bill McKinnon (Washington University) will present, "What has NASA's New Horizons mission taught us about the formation of dwarf planets in the Kuiper belt?" EPL hosts weekly scientific seminars most ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

Using AI to comb through data gathered by NASA's Dawn spacecraft, scientists have conducted a detailed scan of the dwarf planet Ceres to map regions rich in organic molecules to determine whether ...

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

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

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.

Until recently, astronomers observed that Hot Jupiters were isolated around their star, with no other planets in their vicinity. This observation seemed all the ... different in order to preserve ...

I was less interested in stars and planets ... All the magic happens in the box and is sent to your phone. And there’s quite a lot of magic going on. Once you have synced up the app to your ...