--- title: 150-Foot Asteroid GE3 Comes Alarmingly Close to Earth description: It came closer to Earth than the moon canonical: https://time.com/5241352/asteroid-earth-ge3/ author: Kate Samuelson article:opinion: false article:content_tier: free article:published_time: 2018-04-16T13:14:35.000Z article:modified_time: 2026-03-31T11:34:47.600Z article:section: Science og:title: A 150-Foot Asteroid Flew Alarmingly Close to Earth Just Hours After Being Spotted og:description: It came closer to Earth than the moon og:url: https://time.com/5241352/asteroid-earth-ge3/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9d9e7de1653a226c/69892db922fb857281e25586/asteroid-ge3.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 2642 og:image:height: 1486 og:image:alt: Asteroid GE3 og:type: article twitter:card: summary_large_image twitter:title: A 150-Foot Asteroid Flew Alarmingly Close to Earth Just Hours After Being Spotted twitter:description: It came closer to Earth than the moon twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt9d9e7de1653a226c/69892db922fb857281e25586/asteroid-ge3.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # A 150-Foot Asteroid Flew Alarmingly Close to Earth Just Hours After Being Spotted > Sponsored content. 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It reaches 40,000 subscribers with a 34.2% open rate and a 2.1% click rate as of August 2026. #### Where can I follow the energy transition as a business story? Future Proof covers climate and energy as an economic and business story rather than only an environmental one. It publishes every Friday and is free at time.com/newsletters. #### Who writes Future Proof? Justin Worland, a senior correspondent at TIME and an award-winning climate journalist, writes Future Proof. #### Is Future Proof free? Yes. Future Proof is free at time.com/newsletters. by [Kate Samuelson](https://time.com/author/kate-samuelson/) ## Kate Samuelson Apr 16, 2018 1:14 PM UTC  View of asteroid 243 Ida, mosaic of 5 image frames aquired by Galileo spacecraft's Solid State Imaging System. View of asteroid 243 Ida, mosaic of 5 image frames aquired by Galileo spacecraft's Solid State Imaging System. Time Life Pictures—The LIFE Picture Collection/Getty Images by [Kate Samuelson](https://time.com/author/kate-samuelson/) ## Kate Samuelson Apr 16, 2018 1:14 PM UTC An asteroid estimated to be at least 150 feet in diameter made an alarmingly close pass to Earth on Sunday morning just hours after it was first observed by astronomers. The asteroid, named Asteroid 2018 GE3, was closest to Earth at around 2.41 a.m. ET on April 15 when it was spotted about 119,500 miles away, [EarthSky.org](http://earthsky.org/space/asteroid-2018-ge3-passed-earth-apr-15-2018) reports. That’s closer than the moon, which orbits Earth at an average distance of 238,900 miles. GE3 also passed close to the moon later that morning on its journey around the sun. According to EarthSky.org, Asteroid 2018 GE3 could be as much as six times bigger than the [Chelyabinsk meteorite](http://world.time.com/2013/10/16/meteorite-pulled-from-russian-lake-one-of-worlds-biggest/), which exploded over central Russia in 2013\. When the rock hit the atmosphere it caused a bright flash, and thousands of fragments fell throughout the region of Chelyabinsk, breaking windows and injuring about 1,500 people. If GE3 had entered Earth’s atmosphere it could have caused similar, if not more severe, damage. 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