A nearly 3-mile-wide asteroid zips past Earth tonight

Asteroid depiction.
(Image credit: Screenshot / NASA)

The biggest asteroid to pass Earth since recordkeeping began will cruise by beginning Friday night, and backyard stargazers will be able to spot it with a telescope, Time reports. Asteroid Florence is 2.7 miles across, but it will pass by at a safe distance of 4.4 million miles. "It's possible this asteroid could threaten our planet in the far distant future, but it's unlikely," Paul Chodas of NASA's Center for Near-Earth Object Studies told CNN.

At almost three miles wide, Florence will throw off a lot of light — it will appear about as bright as a 9th magnitude star, with its best chance of being seen being from a small telescope around 8 p.m. ET Saturday.

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Jeva Lange

Jeva Lange was the executive editor at TheWeek.com. She formerly served as The Week's deputy editor and culture critic. She is also a contributor to Screen Slate, and her writing has appeared in The New York Daily News, The Awl, Vice, and Gothamist, among other publications. Jeva lives in New York City. Follow her on Twitter.