The Sun, our life-giving star, is slowly dying. In about 5 billion years, it will exhaust its fuel and transform into a red giant, altering the solar system forever. But long before that, the Sun’s ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

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

The comet should be visible by telescope through September, before it gets too close to the sun, and reappear in December on ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have ...

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.