NASA asteroid 2021
2021 EU is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2021 EU as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simula,An asteroid is discovered on April 19, 2021, at apparent magnitude 21.5, and confirmed the following day. It is assigned the designation “2021 PDC” by the Minor ... ,2021年9月3日 — On Aug. 14, 2021, a small near-Earth asteroid (NEA) designated 2021 PJ1 passed our planet at a distance of over 1 million miles (about 1.7 million kilometers). ,2021年9月20日 — Asteroid 2021 SG isn't just big. It's also a fast-moving asteroid, traveling through space at the amazing speed of 53,281 miles per hour ... ,When asteroid Apophis was discovered in 2004, it was identified as one of the most hazardous asteroids that could impact Earth. ,2021年11月2日 — Asteroid 2021 UA1, a space rock about the size of a refrigerator, made a surprise appearance when it recently flew past Earth. ,2021 GM1 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2021 GM1 as a Near Earth Asteroid. ,2022年6月2日 — An asteroid up to three times larger than a blue whale will zoom past Earth on Monday (June 6) at more than 16,000 mph (26,000 km/h), ... ,Asteroid 2021 AE has been red-flagged by NASA's Planetary Defense Coordination Office owing to its extremely close approach to the planet. ,2021年9月23日 — A large asteroid as wide as the wingspan of a Boeing 747 passed by the Earth recently – and scientists didn't even see it coming.
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 NASA asteroid 2021 相關參考資料
Asteroid 2021 EU | Space Reference
2021 EU is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2021 EU as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not c... https://www.spacereference.org Planetary Defense Conference Exercise - 2021 - CNEOS
An asteroid is discovered on April 19, 2021, at apparent magnitude 21.5, and confirmed the following day. It is assigned the designation “2021 PDC” by the Minor ... https://cneos.jpl.nasa.gov Planetary Radar Observes 1,000th Near-Earth Asteroid Since ...
2021年9月3日 — On Aug. 14, 2021, a small near-Earth asteroid (NEA) designated 2021 PJ1 passed our planet at a distance of over 1 million miles (about 1.7 million kilometers). https://www.jpl.nasa.gov Asteroid 2021 SG came from the sun's direction
2021年9月20日 — Asteroid 2021 SG isn't just big. It's also a fast-moving asteroid, traveling through space at the amazing speed of 53,281 miles per hour ... https://earthsky.org Apophis
When asteroid Apophis was discovered in 2004, it was identified as one of the most hazardous asteroids that could impact Earth. https://science.nasa.gov An asteroid barely missed Earth last week, and no one ...
2021年11月2日 — Asteroid 2021 UA1, a space rock about the size of a refrigerator, made a surprise appearance when it recently flew past Earth. https://www.livescience.com Asteroid 2021 GM1
2021 GM1 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2021 GM1 as a Near Earth Asteroid. https://www.spacereference.org Asteroid 2021 GT2 will fly by Earth on June 6, 2022
2022年6月2日 — An asteroid up to three times larger than a blue whale will zoom past Earth on Monday (June 6) at more than 16,000 mph (26,000 km/h), ... https://www.space.com Asteroid 2021 AE has been red-flagged by NASA's ...
Asteroid 2021 AE has been red-flagged by NASA's Planetary Defense Coordination Office owing to its extremely close approach to the planet. https://www.facebook.com 747-sized asteroid skimmed by Earth, and scientists didn't ...
2021年9月23日 — A large asteroid as wide as the wingspan of a Boeing 747 passed by the Earth recently – and scientists didn't even see it coming. https://www.jpost.com |