Want to know how the Millennium Falcon compares in size to an Imperial Star Destroyer? Just watch a Star Wars movie. But if you want to know how that hunk of junk compares to the Battlestar Galactica, ...

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Bigger than a planet? Smaller than an atom? Size comparison videos are all the rage and may scratch a very old itch. By Jenny Marder Not long ago, my 7-year-old son looked up from a picture he was ...

There’s something about comparing the sizes of unthinkably large objects that’s endlessly intriguing. Looking at a comparison of all the various sizes of stars in the universe, for example, makes for ...

A recent study published in The Astrophysical Journal Letters explores how binary star systems—two stars born together orbiting each other—can serve as natural laboratories for understanding planet ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When NASA's newest rover, Curiosity, reaches Mars in about three weeks, it will not be the first ...