The energy to produce the grand canyons on the Moon is about 130 times larger than the energy in the global inventory of ...
Asteroid Impact on Moon Blasted Two Grand Canyons in 10 Minutes ... launched into space above the lunar surface before it came crashing back down. Knots of rock within that curtain of debris ...
Now, new calculations by University of Arizona astronomer David Rankin have reportedly found that there is a slim chance of about 0.3 per cent of the 90-metre-wide asteroid crashing onto the ...
The object that struck the moon is estimated to have been about 15 miles (25 km) in diameter, larger than the asteroid that struck ... surface before it came crashing back down.