New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

Earlier this month, astronomers observed a mysterious object with interstellar origins speeding through the inner solar system. It's an exceedingly rare occurrence, marking only the third confirmed ...

After a scientist claimed a 'hostile alien threat' could attack Earth within months NASA has weighed in on the situation.

The largest interstellar comet discovered could be an alien technology. The newly found Manhattan-sized object, named ...

Dubai: In a groundbreaking discovery that's reshaping our view of the cosmos, astronomers have pinpointed a remarkably dense ...

Kepler-139 f is a Neptune-like exoplanet that orbits a G-type star. The mass of this planet is 36 times that of Earth, which ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

Astronomer Avi Loeb suggests that NASA's Juno spacecraft could potentially intercept a mysterious interstellar object, named 3I/ATLAS, entering our solar system.

Another (and, in our view, more important) source of energy for life on Iceheim is the heat coming from its core, underneath ...

An intruder from outer space is zooming through our solar system, and a spacecraft launched to study Jupiter can provide ...

Simply put, the moon is useful in a way that no other astronomical object is. That's because it's the nearest, most easily ...

NISAR, built jointly by NASA and India’s space agency and launched on Wednesday, will use radar to monitor tiny changes ...