Not much is known about 2024 YR4, but the asteroid is estimated to be 131 to 295 feet (40 to 90 meters) wide, a “size range ...

The potential risk of Asteroid 2024 YR4 impacting Earth in 2032 dropped to nearly zero following new observations that helped better predict the asteroid's trajectory.

Astronomers believe thousands of large undiscovered asteroids, that could cause regional damage, may be in space.

YR4 has a roughly 2 percent chance of hitting Earth in 2032, and “is large enough to cause localized damage,” NASA says.

Here are today's general risks from asteroids or comets both tiny and very large. Importantly, even relatively small rocks can still be threatening, as the surprise 56-foot (17-meter) rock that ...

YR4 is between 40 and 90 meters in diameter, about the size of a large apartment block. The asteroid 2024 YR4, discovered in ...

Update: The odds of asteroid 2024 YR4 striking Earth in 2032 have fallen to 1.5%, NASA announced Wednesday. Read the latest. The risk that an increasingly ominous asteroid dubbed 2024 YR4 will ...

Now, what would happen if a big asteroid was confirmed to be on a collision course impact path with Earth? While our asteroid detection systems are way ahead of our asteroid defense systems ...

“Serpent Mound is the largest serpent effigy built anywhere on the planet Earth,” O’Grady said. “Serpent Mound is built up on ...

NASA was recently tracking a large asteroid, known as the "city killer," after finding a small chance of it hitting Earth in ...

Not much is known about 2024 YR4, but the asteroid is estimated to be 131 to 295 feet (40 to 90 meters) wide, a “size range comparable to that of a large building,” said Dr. Paul Chodas ...