The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track ...

From volcanic terrains to vast deserts, our planet is filled with extraordinary destinations that make you feel like you've stepped onto another planet. No spacecraft required — just a passport and a ...

Far beyond the reach of any probe, astronomers have found a gas giant whose atmosphere behaves less like a familiar planet and more like a special effect from a big-budget space epic. Orbiting a ...