Expertii NASA sunt foarte preocupati de posibilitatea ca Pamantul sa fie lovit in 2019 de asteroidul NT7, descoperit cu doar trei saptamani in urma. Intr-un comunicat dat sambata publicitatii, de autoritatea spatiala americana, se precizeaza ca asteroidul va trece foarte aproape de Pamant.
Asa cum era de asteptat, cercetatorii de la NASA au confirmat faptul ca NT7 este cel mai periculos corp ceresc care se va afla in apropierea Terrei. Intr-un comunicat remis presei de centrul NASA, din Pasadena, se anunta ca o echipa formata din 42 de oameni urmaresc, zi si noapte, „plimbarea” lui NT7 prin spatiu.
„La ora actuala nu putem sa spunem cu certitudine unde se va afla cu exactitate asteroidul in 2019, data la care va trece cel mai aproape de Pamant. Din datele pe care le avem pana acum, credem ca probabilitatea unei coliziuni cu Terra e de 1:250.000. Pare foarte mic riscul, insa e cea mai mare probabilitate inregistrata pana acum de noi. Cred ca, in termeni astronomici, corpul ceresc va trece razant pe langa noi, ceea ce inseamna o distanta de aproximativ 22.000 km. Nu e cazul emiterii unui avertisment public. Asteroidul prezinta mai degraba un interes pur stiintific decat un motiv de panica. La ora actuala nu avem nici un indiciu care sa arate ca un impact se va produce in 2019. Totusi, cum am mai spus, trebuie sa mai cercetam corpul ceresc cel putin inca un an inainte de a putea afirma cu siguranta: „va lovi Terra” sau „va trece aproape de Pamant””, a declarat Ron Baalke, seful echipei de cercetatori de la centrul NASA din Pasadena.
Astronomii americani au comunicat sambata si energia pe care ar elibera-o o eventuala coliziune. E vorba de echivalentul a 1,2 milioane de megatone TNT. In comparatie cu cele mai puternice bombe atomice existente la ora actuala, 400 kilotone TNT, NT7 ar elibera o energie de trei milioane de ori mai mare.
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