Beaver and Jubs
If you insist on estimating the weight of this alien body then at least measure it in something we understand around here. 266 Kg = 53.8095 Jubs
Three NASA cameras have picked up the fiery entrance and explosive exit of a 500lb (226kg) chunk of space rock in the skies over Pennsylvania in the wee small hours of Tuesday. Youtube Video The meteor was spotted at 0450 local time (0950 UTC) sixty miles above Beaver Falls. It was filmed by three video cameras that are part …
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The American agency found that detonations in Earth's atmosphere, caused by incoming cosmic rock, are more frequent and more explosive than first thought.
And yet, you still get people going "we shouldn't waste money on space travel or exploration"
The sooner we can establish an alternative colony off this rock, the better - no, It won't save those left behind, but it might save the species.
"Subsequent research showed that between 2000 and 2013 Earth was hit by two asteroids a year that exploded with a force of more than one kiloton, with the biggest bang a 600 kiloton airburst. None of these meteors had been spotted by telescopes."
'Roids approaching from the direction of the sun are not detectable from Earth, we need a couple of satellites around the L2 points to see what we cannot from, down here.