The sunset is undeniably one of the most beautiful sights in the sky, but it also marks the end of the day. Depending on how you look at it, this can be a good thing because, hey, you made it ...

NASA estimates that there are nearly 6,000 tons of space junk in low Earth orbit, moving around our planet at speeds up to 18,000 mph. Most space debris is from human-made objects like pieces of ...