Humanity’s next great expansion is no longer a thought experiment. It is unfolding in real time in orbit, around the Moon and ...

Popocatépetl emerged in the crater of other volcanoes in its current form more than 20,000 years ago and has been active ...

Every year, the Audubon Society’s Christmas Bird Count draws tens of thousands of birders for the 126-year-old event that ...

Recent scans of interstellar visitor 3I/ATLAS by the Green Bank Telescope show no radio signals, yet astronomers argue it is ...