11-05-2025
New asteroid as big as The Gherkin added to Earth threat-list
The European Space Agency has identified another asteroid as a potential collision risk for Earth, placing it in the top three hazards for the planet. 2025 FA22 is 656 feet or 200 meters in diameter - as tall as The Gherkin in London or New York's Trump Tower - and will approach Earth on September 19, 2089.
The asteroid was found by the Panoramic Survey Telescope and Rapid Response System 2 (Pan-STARRS 2) in Hawaii on March 29 and has been assigned a rating of above -3 on the Palermo Scale. The Palermo Technical Impact Hazard Scale is used by astronomers to assess the risk of an asteroid or comet impacting Earth. It combines both the probability of impact and the potential energy of the impact to provide a single risk score.
The asteroid's score means 'not currently concerning'. It has a Torino Scale score of close to 1, meaning 'no cause for concern'.
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FA22 will make a relatively close pass on September 18, 2025 before returning in 2089. After the close pass, scientists will have a better idea of the asteroid's make-up and trajectory.
There are 1,782 objects on the ESA 'watchlist' as potential threats to Earth. 2025 FA 22 is currently third on that list, after 2023 VD3 - due between 2034 and 2098, and 2008 JL3 - due between 2027 and 2122.
None of the asteroids has a high potential of hitting the planet at present.
An asteroid named Apophis, officially designated 99942 Apophis, is due to pass closer to the Earth than some satellites orbit on April 13, 2029. Apophis was discovered on June 19, 2004, by astronomers at Kitt Peak National Observatory, Arizona.
It is 340 meters (1,100 feet) in diameter - large enough to cause major regional damage if it hit Earth - and has been named after Apophis, the ancient Egyptian god of chaos.
In late 2004, astronomers calculated a relatively high probability (up to 2.7%) that Apophis could impact Earth on April 13, 2029 — an unprecedented concern for an object of its size. It briefly reached a level 4 on the Torino Scale — the highest ever recorded. (Level 4 means it merited attention from astronomers and potentially civil authorities.)
Impact has been ruled out for the foreseeable future, but it will pass just 19,000 miles from the Earth making it visible to the naked eye.
The asteroid 2024 YR4 recently garnered significant attention due to initial assessments suggesting a potential impact with Earth. Early observations indicated up to a 3.1% chance of Earth impact on 22 December 2032, the highest ever recorded for an asteroid of this size (40 to 100 meters).
The impact risk has been downgraded to nearly zero, and the asteroid has been removed from ESA's risk list.
