Experts are constantly monitoring space for potential threats
- Asteroids are constantly passing Earth - and every once in a while some make a direct hit.Of course, the last major asteroid to hit Earth was 66million years ago which wiped out most dinosaurs.
The chances of another such event happening are small but Nasa and other space agencies are taking no chances.And there are efforts to plan ahead in case a big one does come directly toward us, with ideas such as hitting them to deflect their path.The important thing to note is that, despite the chances detailed below, they are all still rated as zero risk at present.Bennu is the most concerning asteroid to our knowledge at present because it poses the highest risk of hitting Earth.
The good news is, if the worst does happen it's not due for more than 150 years, so no living person today will be around.At 74million tonnes and 0.30 miles wide, Bennu wouldn't destroy the entire world. But if it struct a densely populated region, the asteroid could cause millions of causalities, with energy equivalent to dropping 1.4billion tonnes of explosives, according to Live Science.Asteroid 29075 may be the second riskiest but it would be one of the deadliest.The reported energy equivalent is like 75billion tonnes of TNT.2023 TL4 is 0.2 miles wide and has the mass of 47 million tonnes, meaning it would be like dropping 7.5billion tonnes of TNT on Earth.
پاکستان تازہ ترین خبریں, پاکستان عنوانات
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