The arrival of the interstellar object 3I/ATLAS has reignited one of the most profound debates in science: whether Earth's biological history is unique or the result of ancient extraterrestrial ...

A look at the question of whether life may have spread across the universe with help from alien civilizations.

From panspermia to “seed ships”: how life might spread Behind the headlines about alien seed ships lies a much older scientific idea, the concept of panspermia, which holds that life or its building ...

Our park ponds typically hold good numbers of mallards, and urban grassy areas often hold concentrations of geese. In the UK, Canada Geese are an abundant and widespread alien species, well known for ...