Sixty-six million years ago, an asteroid thought to be around 12 kilometers (7.4 miles) in diameter impacted the Earth, ...

A massive 150-foot airplane-sized asteroid is set to pass Earth tomorrow, prompting NASA to issue a cautionary alert.

The amount of light reflected by the asteroid’s surface is used to estimate how big it is. However, the Webb telescope, ...

NASA has said Earth will likely be spared by a deadly Big Ben-sized asteroid and predicts it could smash into the Moon instead in a dramatic collision. The space agency feared the chance of a ...

A newly discovered asteroid being tracked by the global science community has a nearly 98% chance of zooming by Earth without ...

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

Once the new measurements were taken and the math was done, the probability of YR4 hitting the Earth began to decline, ...

Over the next several weeks, astronomers will be looking closely at an asteroid that could be as big as a football field as they try to determine just how likely it is to strike Earth in 2032.

Analysis of samples brought back to Earth from the asteroid Bennu reveal that it has a bizarre chemical make-up and is ...

YR4 has a 2.3% chance of hitting Earth in the year 2032. But according to new estimates, it may have an even smaller chance of hitting the moon instead.

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.

The Webb telescope is well-suited to identify asteroid 2024 YR4's size. Webb views a type of light we can't see with the naked eye, called infrared. Infrared light is largely heat energy, allowing ...