The C.D.C. is urging schools to reopen, but by its standards only 4 percent could do so fully.


By BY JOHN KEEFE from NYT World https://ift.tt/3uPV18Q
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US Scientists Demonstrate Method To Deflect Asteroids Using Nuclear Blast

Asteroid collisions with Earth are surprisingly common, with NASA estimating 48.5 tonnes of meteoric material entering our atmosphere daily....

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The C.D.C. is urging schools to reopen, but by its standards only 4 percent could do so fully.


By BY JOHN KEEFE from NYT World https://ift.tt/3uPV18Q
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