In a conventional system like our own, rocky planets such as Mercury, Venus, Earth, and Mars orbit closest to the host star. Farther out, gas giants ...

Former U.S. President Barack Obama has clarified comments he made about alien life on a podcast over the weekend.

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

These original Xbox couch co-op titles made highly memorable experiences for friends and family alike. Here are 10 standouts.

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.

A Chicago teen who spoke out for her father’s release after he was detained last fall by immigration officials has died after ...

'LHS 1903 breaks this thinking.' ...

Scientists have discovered something that they previously thought wasn’t possible – an ‘inside out’ star system. When you ...

According to the US billionaire, this will require building factories on the Moon and launching AI space exploration satellites using mass drivers ...

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 ...