NASA is monitoring three aircraft-sized asteroids that will zoom past the Earth later today at around 19,000 to 22,200 miles per hour.

T onight, a massive asteroid—2020 XR—will make its closest-ever approach to Earth, passing at a distance of 1.37 million miles.For context, that’s about five times the distance from Earth to ...

That’s not even close to the size of the “planet-killer” asteroid that slammed into Earth 66 million years ago and led to the ...

Asteroid 2020 XR was discovered exactly four ... and will pass within 4.6 million miles at its closest approach (more specifically, within 1.37 million miles). According to NASA’s JPL tracking ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

YR4 became the highest-rated asteroid predicted to strike Earth, and although predictions for impact have lowered, not enough ...

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

YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a ...

YR4: everything to know about the potential "city killer" space rock that has a 2.3% chance of striking Earth on Dec. 22, ...

In a rare "time-critical" decision, the James Webb Space Telescope will study the true size of the "potentially hazardous" asteroid 2024 YR4 twice over the next few months. The asteroid has a roughly ...

Lucy is preparing for a close encounter with the asteroid Donaldjohanson, a key milestone before its groundbreaking journey ...

Astronomers have been keeping a close eye on an asteroid between 130 and 300 feet long that has a very small chance of crashing into Earth in less than eight years. And as they learn more about ...