YR4, the "city-killer" asteroid that briefly made headlines last year due to a small but non-zero chance that it may hit the ...

Scientists are considering possible deflection scenarios, including detonating a nuclear bomb near the asteroid.

In February, the James Webb Space Telescope will briefly be able to observe asteroid 2024 YR4, which currently has a 4 per ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time ...