The boundary of the Solar System remains somewhat poorly understood. We know we are within it, in a region of space called ...

Astronomers found an interstellar "tunnel" - a cosmic channel that connects our solar system to distant stars, according to a recent study.

Humanity has already flung machines into interstellar space, but sending people is a different problem entirely. The physics of propulsion, the fragility of the human body, and the sheer size of the ...

A 13-atom molecule containing sulfur has been discovered in interstellar space for the first time, providing insight into the origins of the chemistry of life.

The European Space Agency has quietly added a major piece to its global space communications network with the inauguration of ...

During a close approach to the Sun, the European Space Agency’s Solar Orbiter watched that tipping point unfold in unusually ...

NASA’s Goddard Space Flight Center shared the images of comet 3I/ATLAS. It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to ...

Earth and its neighbors orbit the sun on a relatively flat plane. But what's below this plane, and is anythign below the ...

Scientists at the European Space Agency used a laser to communicate with a spacecraft 165 million miles (265 million kilometers) away in deep space for the first time, marking a major step forward in ...