How dangerous asteroid is?

"Recent research led by the University of Maryland using the Zwicky Transient Facility telescope has revealed that the Taurid swarm, a stream of space debris from the comet Encke, poses less of a threat than previously believed. Credit: SciTechDaily.com. " (ScitechDaily, How Dangerous Is the “Doomsday” Asteroid Swarm?)

Asteroid impacts are always dangerous. If the 10X10 m cosmic rock impacts the ground with the cosmic speed that can cause local damage. The local damage means that the city center can turn into a crater. And if a small asteroid hits the water, it can form a tsunami. The problem is that the small-size asteroids are detected at the last moment. The bigger, mountain-sie asteroids are easier to detect.

But turning those asteroids away from their course is hard because of their large size. When a large-size asteroid hits the ground or water it is dust and vapor to the atmosphere. The asteroid also turns the atmosphere very hot in its trajectory.

And if the angle of the incoming asteroid is low the friction raises the atmosphere's temperature in a long route. And that can cause even global forest fires. The steep trajectory makes it possible for the atmosphere to turn hotter in more limited areas. But the asteroid can fall to the bottom of the ocean. And make the hole to magma. That can cause a nuclear winter that can collapse our entire ecosystem.

The impact of asteroids destroyed dinosaurs That thing means that the asteroid impacts are dangerous things. If some asteroid comes to impact course to Earth. And falls to some major city that destroys the city.

However large groups of small meteorites or meteoroids could be dangerous. if a large number of quite small meteoroids that burn in the atmosphere impact Earth's atmosphere that thing can form a case, that those small particles can raise the atmosphere temperature. Theoretically, that kind of meteoroid fall can raise the Earth's atmosphere temperature so high, that things like forests start to burn. The meteoroids can be as devastating as larger asteroids. But the requirement is that there are lots of meteoroids.

https://scitechdaily.com/how-dangerous-is-the-doomsday-asteroid-swarm/

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