Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

That means if aliens were to exist, and they were located some 66 million light-years from Earth, they’d theoretically still ...

Anyone familiar with the search for alien life will have heard of the "Goldilocks Zone" around a star. This is defined as the orbital band where the temperature is just right for liquid water to pool ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

Former US President Barack Obama says he has seen no evidence extra-terrestrials have made contact with Earth.