2025年2月7日 · A newly discovered asteroid named 2024 YR4 now has a 2.2% chance of affecting Earth in 2032 after recent observations.

2025年2月7日 · The YR4 asteroid is currently the most dangerous space object near Earth, according to NASA, and its impact on the planet would have the same power as a nuclear …

4 天之前 · An asteroid the size of 2024 YR4 is stealthy enough that astronomers may not have seen it until 2028, or even just prior to its possible impact in 2032. This will soon be an …

6 天之前 · An asteroid has a small chance of hitting Earth less than eight years from now, and astronomers are enlisting the help of NASA's James Webb Space Telescope to study it. …

3 天之前 · Asteroid 2024 YR4, measuring approximately 40 to 100 meters wide, will pass very close to Earth in December 2032—and might even strike the planet. Because of its size, …

2025年1月31日 · The asteroid’s closest approach to Earth, it turned out, had been two days earlier, when YR4 was about 800,000 kilometers from our planet, roughly twice as far away as …

Asteroid impacts are expected to cause multiple cascading effects—ranging from the initial thermal radiation, overpressure blast waves, earthquakes, and plumes to cascading hazards …

2024年3月1日 · Asteroid impacts on Earth have the potential to cause substantial damage and pose a notable threat to human populations. Potential impact hazards include powerful blast …

However, more common natural disasters, such as volcanic eruptions, earthquakes, wildfires, dust storms, and hurricanes, are likely analogs that can provide the scope and scale of these …

This paper reviews the initial and cascading effects of these natural hazards, describes the state of the art for modeling these hazards, and discusses the relevance of these hazards to …