The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it ...

The detection of 3I/ATLAS marks our solar system’s third time saying aloha to an interstellar visitor, following the ...

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astrophotographer Thierry Legault captured the International Space Station transit the Sun. The NASA astronauts were ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

Astronomers have confirmed that a recently spotted object is an interstellar visitor, and appears to have come from the ...

Right now, Earth is about 3.1 million miles farther from the sun than it is in early January when it reaches perihelion, its ...

In April, scientists announced that they had used NASA’s James Webb Space Telescope to find a potential signature of alien life in the glow of a distant planet. Other scientists were quick to ...