Apocalyptic movies like Armageddon have explored the possibility of total annihilation if an asteroid strikes on Earth. Although asteroids make close approaches to Earth nearly every day, none of them impact the surface. But what if an asteroid, which can end life, actually hits Earth? The plan to save the planet wouldn't be as fancy as Bruce Willis drilling into the asteroid to nuke it. NASA has already carried out the testing of its DART Mission for planetary protection which involves crashing a spacecraft into an oncoming asteroid to successfully divert it from its path. This could help prevent an asteroid collision and save billions of lives.
But success depends on what kind of asteroid it is. If it is not hard or metallic, then the crash deflection strategy may well not work. For example, OSIRIS-REX spacecraft visited Asteroid Bennu and found that it is more a rubble pile than solid rock. The spacecraft was almost swallowed by the asteroid!
Although not a planet killer, NASA has issued an alert against this asteroid, which is dashing towards Earth for a close approach today.
NASA has issued a warning about a particular asteroid called Asteroid 2023 GR, as it will be approaching very close to Earth. The asteroid is currently traveling at a speed of almost 32613 kilometers per hour and is set to make its closest approach to Earth today, April 18, at a distance of 7.1 million kilometers per hour.
As per NASA, Asteroid 2023 GR is nearly as big as an aircraft, with a width between 147 feet and 328 feet. It belongs to the Amor group, which are Earth-approaching near-Earth asteroids with orbits exterior to Earth's but interior to Mars', named after asteroid 1221 Amor.
In recent years, there has been a growing effort to track
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