Humans could have come from Mars, scientists have said. A study by Johns Hopkins University has found that alien microbes ...

If the Sun were very different, we wouldn’t be here. A shorter-lived star wouldn't provide the opportunity for humanity to ...

Red dwarf stars, the most common type of star in our galaxy, are prime candidates for hosting exoplanets that might support ...

More than 40% of extant large freshwater animals (megafauna), including carp, salmonids, crocodilians, turtles, beavers, and hippopotamuses, have been deliberately introduced outside their natural ...