Destroying an Earth-killing asteroid is not always possible, here's what we can do instead.
Do you know what size asteroid would be enough to end all life on Earth? According to the experts at NASA, a space rock only 96 km wide can do the job.
In their recently published study, the researchers reveal exciting information that could help us save our planet in case Earth faces aScientists at NASA suggest that Itokawa originated from a larger space rock about 4.2 billion years ago. It is located at a distance of 2 million km from Earth and isPlus, Itokawa is no ordinary single-piece space rock. It's a specialmade of numerous rocks and boulders loosely held together because of their collective gravity.
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