While the posts are a small part of the administration’s overall social media presence, experts say they are clear references ...

When people imagine first contact with aliens, they often picture giant ships in the sky or wise beings sending peaceful messages. A new scientific idea suggests something very different. According to ...

NASA’s Europa Clipper mission is set to investigate Jupiter’s icy moon for signs of a vast subsurface ocean and the chemical conditions needed for life, with the first meaningful results expected ...

The Russian leader was holding his marathon year-end news conference Friday, as the Kremlin sticks to its hardline demands despite U.S. pressure for a peace deal by Christmas. Russian President ...