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 ...

There’s nothing like a size comparison of stuff from fictional universes to help develop a better sense of their scale. Knowing how big Arrakis from Dune is relative to Pandora from Avatar, for ...

An animation posted to Twitter has shocked social media users by showing the impressive size of Jupiter and just how rapidly the solar system's largest planet rotates. The animation posted by ...

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 ...

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, ...

Add Yahoo as a preferred source to see more of our stories on Google. During its 4.5-billion-year life span, Earth’s been hit by countless asteroids. (Despite Jupiter’s noble attempts at defending it.

Scientists have discovered over 4,000 exoplanets outside of our Solar System, according to NASA's Exoplanet Archive. Some of these planets orbit multiple stars at the same time. Certain planets are so ...

In a new study, a team of astrophysicists, including two researchers at CU Boulder, have discovered a small and rocky world orbiting a star far from Earth—similar to our own planet, perhaps, but much ...

Scientists have discovered over 4,000 exoplanets outside of our Solar System, according to NASA’s Exoplanet Archive. Some of these planets orbit multiple stars at the same time. Certain planets are so ...

LOS ANGELES — At least one in every four stars like the sun have planets about the size of the Earth circling them in very close orbits, according to the first direct measurement of the incidence of ...