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.

Only two spacecraft have ever truly escaped the solar system, slipping beyond the Sun’s protective bubble into interstellar space. Their measurements are now reshaping how I understand the heliosphere ...

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

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

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 ...