ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

NASA's Parker Solar Probe, for example, swoops just a few million miles away from the sun's surface, gathering data about the fiery environment there. But then retreats beyond the orbit of Venus ...

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

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

Scientists found an intriguing world in our galaxy.

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

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia.

SpaceX is scheduled to bring home two astronauts who have been on the International Space Station since June. Mr. Musk said President Trump had asked for that to occur “as soon as possible.” ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

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

When asteroids like Bennu hit the young Earth, they could have provided a complete package of complex molecules and the ...

ESA's groundbreaking Proba-3 mission has successfully initiated its formation-flying phase, with two spacecraft now set to ...