For more than a century, the idea that life might have arrived on our planet from elsewhere in the cosmos sat at the fringes ...

With Trump nearing the one-year mark of his second term, here’s a look at where some of his most jaw-dropping promises stand.

TheSETI@home project, after decades of data collection, is approaching the end of its massive search for extraterrestrial ...

What Yang Liwei heard during China’s first crewed spaceflight still defies physics, sensors, and every known explanation.