Do you know that not all the near-Earth objects (NEO) are safe for humanity and for the overall planet Earth? The crash of a NEO with Earth is said to be the reason behind the extinction of dinosaurs on the planet? Imagine, what if another such collision happens?
Asteroids are of varied sizes. The smaller its size is, the less threat it poses for the planet. However, a gigantic asteroid like the 2012 DK31 which is 450-foot high can pose a great threat to the planet.
ESA - Eyes on Hera: Asteroid mission's cameras ready
ESA's Hera asteroid mission for planetary defence is about to gain its sight. Two complete and fully tested Asteroid Framing Cameras have reached OHB in Germany for integration aboard Hera's payload module.
"It is a huge milestone to have the very first Hera payload ready for integration onto the spacecraft," comments Hannah Goldberg, Hera system engineer.
Recreating the Extreme Forces of an Asteroid Impact in the Lab - Universe Today
About 50,000 years ago, a nickel-iron meteorite some 50 meters across plowed into the Pleistocene-era grasslands of what is now Northern Arizona. It was traveling fast—about 13 kilometers per second.
For years, scientists have worked to understand all the forces at work in such an impact event like the one that carved out Meteor Crater. Clearly, impacts have huge effects. The aftermath of the collision affects the landscape and leaves behind a scene of destruction.
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