Astronomers scanned the interstellar object 3I/ATLAS for alien signals using the Green Bank Telescope, but found none. The object behaves like a normal comet, made of ice, dust and rock, yet studying ...

Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well suited to protect traces of life. Together, these caverns, portals and ...

During its original network run in the 1960s, Star Trek was famously saved from cancellation twice by fan letter-writing ...