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99942 Apophis (provisional designation 2004 MN 4) is a near-Earth asteroid and a potentially hazardous object, 450 metres (1,480 ft) by 170 metres (560 ft) in size, [3] that caused a brief period of concern in December 2004 when initial observations indicated a probability of 2.7% that it would hit Earth on Friday, April 13, 2029.
The probability of impact crossed 1% in late January and reached 1.9% Wednesday. The latest calculations Friday show the odds have increased a little more to 2.3%. ... when the asteroid Apophis ...
On December 24, 2004, 370 m (1,210 ft) asteroid 99942 Apophis was assigned a 4 on the Torino scale, the highest rating given to date, for an impact in April 2029. [19] As observations were collected over the next three days, the calculated chance of impact first increased to as high as 2.7%, [ 20 ] then fell back to zero. [ 21 ]
A similar scenario unfolded in 2004 with Apophis, an asteroid initially projected to have a 2.7 percent chance of striking Earth in 2029. Further observations ruled out an impact. "City killer ...
A menacing asteroid named Apophis is projected to have a close encounter with Earth in 2029, but scientists have long ruled it out as an impact risk. Asteroids safely fly by Earth all the time ...
Currently, no impacts are predicted (the single highest probability impact currently listed is ~7 m asteroid 2010 RF 12, which is due to pass Earth in September 2095 with only a 10% predicted chance of impacting; its size is also small enough that any damage from an impact would be minimal).
That's why this one now tops ESA's asteroid risk list. The potential impact would occur on Dec. 22, 2032. It’s much too soon to know where it might land if it did hit Earth. The good news, according to NASA, is that for now, no other known large asteroids have an impact probability above 1%. ___
Yes, the asteroid has little more than a 1% probability of slamming into Earth in 2032. And yes, that makes it the only one of more-than 37,000 known large space rocks near Earth with such odds.