Deadly asteroid may hit Mars soon
The asteroid, known simply as 2007 WD5, was discovered in the constellation Taurus on November 20, 19 days after passing near the Earth at an apparent magnitude of +20. That is about 400,000 times fainter than most people can see with the naked eye on a dark night.
Early observations of the asteroid caused excitement amongst the scientific community when it was estimated as having as high as a 1 in 75 chance of colliding with Mars on January 30, 2008. Wikipedia estimated such chances as 1 in 25.
However, by January 9, additional observations allowed NASA's Near Earth Object Program (NEOP) to narrow the field of uncertainty, resulting in only a 1-in-10,000 chance of impact.
Atenção que este asteróide (2007 WD5) não é aquele que a partir de 18 a 30 de Janeiro passa a uma distância Terra-Lua da Terra (2007 TU24).