Earth is home, but it’s also full of surprises. Some of these facts might make you stop and say, “Wait, is that true?” Let’s ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Roll out the cosmic welcome mat for our solar system’s newest resident: a never-before-seen moon orbiting Uranus. A team of astronomers announced Tuesday that a new satellite measuring roughly 90 ...