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The International Space Station "has served its purpose" and should be deorbited "as soon as possible," SpaceX chief and close Trump adviser Elon Musk said today (Feb. 20).

Rippled textures in a shallow lake bed on Mars indicate that ice-free liquid water once pooled here.

Breathe a sigh of relief! NASA has dropped the risk of asteroid 2024 YR4 impacting Earth in 2032 to 1 in 360, just days after it became the highest-risk asteroid since records began.

Elon Musk and President Trump continue to advance the narrative that NASA astronauts from Boeing's Starliner mission were "abandoned" in space.

Build a replica of our solar system and learn about its planets with a DIY solar system kit. Here are some to consider.

If we're looking for life as we don't know it, the best solvent out there may be concentrated sulfuric acid — the stuff that's floating around in the clouds of Venus.

Buying Guide We've picked the best binoculars for stargazing, comet viewing and nature watching. Keep an eye out for deals and do your research here to prepare.

Buying Guide Here are the best telescopes for a range of different purposes and budgets — beginner to smart telescopes and everything in between. Keep your eyes peeled for deals, too.

Deals This Astronaut star projector is currently just 20% off, offering gorgeous indoor nebulas in a fun, novelty model at a sizable discount.

A SpaceX rocket stage fell to Earth early Wednesday morning (Feb. 19), blazing a trail of fire through European skies.