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On Nov. 20, 1998, the first piece of the International Space Station launched into orbit.

The moon and Mars will share a close approach tonight (Nov. 20) during a conjunction as the two visit the Cancer constellation, the Crab.

Here are the best Black Friday Lego deals we've found on Lego Star Wars, Marvel and space sets ahead of the annual sales event.

An artificial banana floated in the microgravity environment of outer space. No longer needing its attached tethers, it just hung there in the bay of its spacecraft's otherwise empty cargo hold.

The latest aurora predictions for tonight help you make sure you're in the right place at the right time to see the northern lights.

Deals This super easy-to-use motorized telescope is currently available with a 20% saving off the regular price.

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.

Deals We've scoped out all the best Celestron telescope and binoculars deals on the market and put them in this handy guide.

The first year of data from the 5,000 robotic eyes of DESI shows Einstein's theory of general relativity is the right recipe for gravity despite the challenges of dark energy and dark matter.

President-elect Donald Trump made the trip to South Texas today (Nov. 19) to watch the sixth test flight of SpaceX's giant Starship rocket.