YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a ...
NASA labels objects that come within 4.6 million miles of Earth and are larger than 492 feet as a “potentially hazardous ...
How many potentially hazardous asteroids are there? As of February 2025, NASA's Center for Near Earth Object Studies (CNEOS) has identified around 37,500 NEOs.
"Not all NEOs are potentially hazardous, but all hazardous objects are NEOs," Martin Barstow, a professor of astrophysics and space science at the University of Leicester in the United Kingdom ...
Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.
Astronomers believe thousands of large undiscovered asteroids, that could cause regional damage, may be in space.
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