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Any impact of Apophis would be extremely detrimental to an area of thousands of square kilometres, but would be unlikely to have long-lasting global effects, such as the initiation of an impact winter. [100] Assuming Apophis is a 370-metre-wide (1,210 ft) stony asteroid with a density of 3,000 kg/m 3, if it were to impact into sedimentary rock ...
The last time this happened was with the discovery of asteroid Apophis in 2004. ... How big is asteroid 2024 YR4? ... location of a potential impact for 2024 YR4. The asteroid's size and risk make ...
Further observations eventually allowed astronomers in 2021 to rule out the possibility of an impact when Apophis makes the close flyby to Earth in April 2029. There's also no risk during another ...
A menacing asteroid named Apophis is projected to have a close encounter with Earth in 2029, but scientists have long ruled it out as an impact risk.
On December 24, 2004, 370 m (1,210 ft) asteroid 99942 Apophis (at the time yet unnamed and therefore known only by its provisional designation 2004 MN 4) was assigned a 4 on the Torino scale, the highest rating given to date, as the information available at the time translated to a 1.6% chance of Earth impact in April 2029. [91]
Asteroid impact prediction is the prediction of the ... follow-up observations of 99942 Apophis, ... a large day-side impacting asteroid is highly ...
A big one, though, can wreak havoc far beyond its initial impact site. The massive Chicxulub asteroid that 66 million years ago slammed into what is now the Yucatán peninsula in Mexico released ...
First "big four" asteroid visited by a spacecraft, largest asteroid visited by a spacecraft at the time ... 99942 Apophis: 0.3: June 19, 2004: First asteroid to rank ...