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Asteroids: impact with Earth

If an asteroid crashes through Earth's surface, it is then called a meteorite.
For an asteroid to cause a global panic it has to be more than a quarter-mile wide, an impact from an asteroid this size would cause dust to raise into the atmosphere and thus creating a "nuclear winter"
However, smaller asteroids are believed to strike Earth every 1,000-10,000 years; and the most dangerous asteroids are extremely rare.

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@mbyrne

created an idea from a article:

SPACE

space.com

MORE IDEAS FROM THE SAME ARTICLE

We can observe an asteroid by observing them through a radar. The radar can reveal its size, shape, and whether it is two objects.

The different types of asteroids are:

Asteroids are rocks which revolve around the sun. They are usually too small to be considered as a planet since they can be as small as 2 meters but they can be as big as 940 kilometers across.
Asteroids are also known as planetoids or minor planets

In 1801, Giuseppe Piazzi discovered the first and largest asteroid, Ceres, orbiting between Mars and Jupiter (Today it is classified as both an asteroid and a dwarf planet)
In 1802, William...

Asteroids are what's left after the formation of our solar system from billions of years ago.

Amusingly, the collisions that could possibly bring death to us may be the reason we are alive today.