The Asteroid Terrestrial-impact Last Alert System, better known as ATLAS, detected a fast-moving object entering our solar ...

The European Space Agency also hoped to observe the interstellar object during its close approach to Mars using two ...

At the time, astronomer Jerry Ehman spotted the highly unusual outburst in printed out records, annotating the major radio ...

NASA is set to launch three spacecrafts Tuesday with the goal of unlocking the mysteries of solar weather at the edge of our solar system.

A rare interstellar visitor has entered our Solar System, and it’s behaving in ways that have astronomers both fascinated and ...

(CNN) — Flybys of Jupiter’s fiery moon Io, carried out by NASA’s Juno spacecraft, are helping to solve the enduring mystery of why the small moon is the most volcanically active body in our solar ...

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and ...

Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Flybys of Jupiter ...