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(308635) 2005 YU 55, provisionally named 2005 YU 55, is a potentially hazardous asteroid [2] 360 ± 40 meters in diameter, as measured after its Earth flyby. [8] Previously it was estimated to be 310 meters [5] or about 400 m (1,300 feet) in diameter.
Asteroid designation Date & time (UTC) of discovery Discoverer Estimated size Abs. mag. Date & time (UTC) of impact Warning time Location of impact Airburst altitude Energy Method of impact detection Reference 2008 TC 3: 2008-10-06 06:39 Mt. Lemmon Survey: 3.8–4.4 m (12–14 ft) 30.72: 2008-10-07 02:45 20:05: 20.9 N, 31.8 E Nubian Desert in ...
An asteroid nearly the size of a football field now has roughly a 0.004% chance of hitting Earth in about eight years, NASA says — with the space agency saying it "no longer poses a significant ...
The average near-Earth asteroid, such as 2019 VF 5, passes Earth at 18 km/s. The average short-period comet passes Earth at 30 km/s, and the average long-period comet passes Earth at 53 km/s. [9] A retrograde parabolic Oort cloud comet (e=1, i=180°) could pass Earth at 72 km/s when 1 AU from the Sun.
After the asteroid that wiped out the dinosaurs hit what is now the Yucatan Peninsula more than 30 million years before these asteroids, its explosive energy resulted in irreversible climate change.
In the unlikely event that it did hit Earth, the asteroid would likely “impact at a high velocity” of roughly 38,000 mph, according to the Center for Near Earth Object Studies at NASA’s Jet ...
In 2021, evidence for a probable impact 3.46 billion-years ago at Pilbara Craton has been found in the form of a 150 kilometres (93 mi) crater created by the impact of a 10 kilometres (6.2 mi) asteroid (named "The Apex Asteroid") into the sea at a depth of 2.5 kilometres (1.6 mi) (near the site of Marble Bar, Western Australia). [55]
The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking Earth eight years from now. Key facts about asteroid that could hit Earth ...