Comet Siding Spring whizzes past Mars Yahoo!

A comet the size of a small mountain whizzed past Mars on Sunday, dazzling space enthusiasts with the once-in-a-million-years encounter.
The comet, known as Siding Spring (C/2013 A1), made its closest encounter with Mars on Sunday at 2:27 pm (1827 GMT), racing past the Red Planet at a breakneck 126,000 miles (203,000 kilometers) per hour.
At its closest, Siding Spring was 87,000 miles (139,500 kilometers) from Mars — less than half the distance between Earth and our moon.