Aliens can observe Earth from the past, opening up fascinating discussions about time, space, and extraterrestrial ...

Brian Lacki has released a set of three prepublication studies attempting to rationalize and measure the odds of a ...

I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some ...

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.