I forget who I was debating this with recently. Maybe Dave. Probably Pat. Anyway, a rock the size of a house will not be big enough to hit the ground. It’s got to be more like two football fields in width.
A stony space rock must be about the size of two football fields, or 720 feet (220 meters) in diameter, to endure the thickening atmosphere and slam into the planet, according to the study, led by Philip Bland of the Department of Earth Science and Engineering at Imperial College London.
That said, you should probably take note of the 1 in 45 chance that such a rock will smack us down in 2029.
