As for YR4, defensive measures were quickly set in motion ... Even so, the world's planetary-defense planning still needs ...

More than 38,000 asteroids are known to be in Earth’s vicinity, including 973 “planet killers” of more than half a mile in ...

New observations have dramatically reduced the chances of asteroid 2024 YR4 hitting Earth in 2032, lowering the risk to ...

2024 YR4 has now fallen from the riskiest asteroid ... Lab tests, too, show that laser deflections work. And scientists have long discussed using nuclear weapons, either to deflect the asteroid ...

As for YR4, defensive measures were quickly set in motion ... Even so, the world’s planetary-defense planning still needs ...

As for YR4, defensive measures were quickly set in motion ... Even so, the world’s planetary-defense planning still needs ...

Asteroid 2024 YR4, detected by telescopes on December 27 ... asteroid’s risk assessment is thanks to “unsung, meticulous work by astronomers” who conducted a steady stream of follow-up ...

Asteroid 2024 YR4, deemed the riskiest asteroid on record ... asteroid’s risk assessment is thanks to “unsung, meticulous work by astronomers” who conducted a steady stream of follow-up ...