Meteor Crater and Lowell Observatory invite the public to observe the unique benchmark with a day of educational activities.

Asteroid 2024 YR4 has a 0.0017% chance of hitting Earth, but media reports too often ignore the unlikelihood of impact in reports of near-Earth asteroids, a Tucson astronomer says.

The Earth Impact Risk Summary for 2024 YR4, with data up to February 20, 2025, has significantly reduced the danger from this ...

Asteroid 2024 YR4 currently has small chance of striking the Earth on Wednesday, Dec. 22, 2032. ... However, later on Thursday afternoon, the impact probability increased to 2.3%, ...