We could of had two of these each nightBy Michael D. Lemonick, Source Time Magazine

Earth must have felt pretty inadequate a week or two ago when astronomers announced that distant Pluto has yet another moon. Pluto! Recently demoted to a dwarf planet! And yet it boosted its satellite total to four, while we remain forever stuck at one. True, Earth is ahead of Mercury and Venus, which have no moons at all. But Mars, which is significantly smaller than Earth, has two; and don’t even mention Jupiter, with more than 60; or Saturn, with 53. Even asteroids have multiple moons — including Sylvia, a 384-mile (617 km) space rock that boasts the twin satellites Romulus and Remus.

But Earth’s rep may might gotten a bump, thanks to a paper just published in the journal Nature. Our home planet may have just one lonely moon now, but long ago, like Mars and Sylvia, we had two. “Whether it’s right or not, I don’t know,” says Maria Zuber, a planetary scientist at MIT who wrote an opinion piece accompanying the new study. “But I think it’s very plausible.”

Read the full story on Time.com

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