A large asteroid once considered the greatest known risk to Earth may now be on track for a direct hit — not on our planet, ...

The asteroid known as 2024 YR4 is out of sight yet still very much on scientists' minds as its revised trajectory is now ...

A moon could be hit by an asteroid which initially appeared to be on a potential collision course with Earth. New data ...

Any uncertainty in the calculation of the object’s orbit causes variations in the predicted solution. Instead of one precise ...

A controversial new study claims that a ‘hostile’ alien spacecraft could attempt to attack Earth in November. Scientists say ...

Initially flagged as a potential Earth threat, asteroid 2024 YR4, a 200-foot space rock, is now predicted to potentially ...

A massive asteroid, named 2025 OW, resembling a 25-storey building, is approaching Earth next week. It measures about 220 ...

In late 2024, astronomers spotted a new asteroid named 2024 YR4. ... What followed was an international effort to track its course, measure its size, and figure out if it might hit Earth.

"In my opinion, planetary defense is an operational mission which should be formally tasked to U.S. Space Command." ...

Sandia scientist John Sandusky believes he has found a way to put heliostats, which typically turn solar energy into ...

In 2022, NASA rammed a spacecraft into an asteroid to see if it could alter its orbital period around its parent asteroid.

The impact probability describes how likely a hazardous asteroid is to hit Earth. For example, if the impact probability is 1%, it means that in 1 of 100 cases, it hits Earth.