Originating from the outer reaches of the Solar System—which it left millions of years ago—the C/2023 A3 Tsuchinshan-ATLAS ...

The many thousands of small celestial bodies beyond Neptune's orbit may have ended up there due to a star that passed close ...

A star's close flyby billions of years ago possibly influenced the solar system's architecture, leading to unusual orbits of ...

Instead of rocket fuel, LightSail 2 used photons, demonstrating the viability of solar sailing for future space missions.

Since then, New Horizons has been blazing a trail through the Kuiper Belt, which is a ring-shaped region of icy cometary bodies beyond the orbit of ... of the outer solar system to which New ...

Katy is Managing Editor at IFLScience where she oversees editorial content from News articles to Features, and even occasionally writes some.

This novel model challenges existing notions of how the solar system came to look the way it ... For example, they orbit their parent planets in the same direction as that of the planets' rotation.

The thrusters on the Crew Dragon spacecraft fired for about eight minutes to push the farthest point of the spacecraft orbit outward ... covers NASA and the solar system, and research closer ...

Billions of years ago, a star may have passed incredibly close to our Solar System, triggering a series of cosmic events that ...

How did the Moon form? Was it from a collision, as has been the longstanding theory, or could it have been captured by the ...