Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Planet K2-18b, an apparent water world 124 light years away, has been seen as a promising location in the search for aliens, ...

Barack Obama has clarified a recent interview in which he said aliens are “real,” insisting he saw “no evidence” that ...

With Area 51 ruled out by President Obama, where might aliens really be hiding? Scientists have now revealed the best candidates.

The interstellar visitor, only the third such object to be discovered passing through our solar system, ignited controversial ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

The planets orbit a star around 133 light-years away from Earth.

This twist — that 3I/ATLAS' outer layers have been baked by the sun — does not derail our mission. It just makes the science ...

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

SIGNS of an alien planet that’s about the same size as Earth have been picked by up a Nasa telescope. Scientists say it might even be within its host star’s “habitable ...