For several years, astronomers have been aware of a much-ballyhooed “city-killer” asteroid named YR4 2024, which is hurtling ...

The world is watching as NASA tweaks the odds that asteroid 2024 YR4 will hit Earth. But how threatening is YR4, and how does ...

Why does SpaceX founder Elon Musk want to deorbit the ISS? - The billionaire’s company was awarded more than $840 million by ...

YR4 has a very small chance of impacting Earth on Dec. 22, 2032- but one that has increased slightly since it was first spotted. The latest impact probability is available on the automated Sentry page ...