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Scientists were today warning of a possible asteroid collision with the Earth.
An asteroid around two-thirds of a mile wide (1.2km) could hit the earth on March 21, 2014 and has been classified as “an event meriting careful monitoring” by astronomers.
Asteroid 2003 QQ47's Potential Earth Impact in 2014 Ruled Out
Newly discovered asteroid 2003 QQ47 has received considerable media attention over the last few days because it had a small chance of colliding with the Earth in the year 2014 and was rated a "1" on the Torino impact hazard scale, which goes from 0 to 10. The odds of collision in 2014, as estimated by JPL's Sentry impact monitoring system, peaked at 1 chance in 250,000, a result which was posted on our Impact Risk Page on Saturday, August 30. (...) As astronomers continue to monitor an asteroid and measure its position, more precise predictions can be made. (...) astronomers continue to track the object and we refine our orbit predictions.
Asteroid 2003 QQ47's Potential Earth Impact in 2014 Ruled Out
Paul W. Chodas and Steven R. Chesley
NASA's Near Earth Object Program Office
September 3, 2003
Newly discovered asteroid 2003 QQ47 has received considerable media attention over the last few days because it had a small chance of colliding with the Earth in the year 2014 and was rated a "1" on the Torino impact hazard scale, which goes from 0 to 10. The odds of collision in 2014, as estimated by JPL's Sentry impact monitoring system, peaked at 1 chance in 250,000, a result which was posted on our Impact Risk Page on Saturday, August 30. Impact events at the Torino Scale 1 level certainly merit careful monitoring by astronomers, but these events do not warrant public concern. In fact, each year several newly discovered asteroids reach Torino Scale 1 for a brief period after discovery; 2003 QQ47 is the fourth such case this year.
As astronomers continue to monitor an asteroid and measure its position, more precise predictions can be made. On September 2, new measurements of QQ47's position allowed us to narrow our prediction of its path in 2014, and thus we could rule out any Earth impact possibilities for 2014. In our Impact Risk Page for 2003 QQ47, the entry for the year 2014 has now disappeared, although a number of potential impact events remain for later years. We expect that these too will be ruled out in the coming days as astronomers continue to track the object and we refine our orbit predictions.
These seemingly large day-to-day changes in impact predictions for newly discovered asteroids are just what we expect. In the few days after an asteroid is first discovered, its orbit is known only very approximately. The range of possible positions in future years is wide and can easily encompass the Earth, but as the object continues to be tracked, the range of possibilities shrinks quickly, allowing us to rule out any possibility of impact. This process is ongoing for 2003 QQ47, and could take days or even weeks before all potential impacts are ruled out
Well, it took three months, but we have our first notpocalypse of 2014!
Twitter, Facebook, and other social media are spreading a story that a large asteroid named 2003 QQ47 might impact the Earth next week, specifically on Mar. 21, 2014.
Let me be very clear right away: Nope. It won’t. This story is totally wrong! Well, the asteroid does exist, but it won’t hit us next week, and in fact can’t hit the Earth for at least a century. The truth is the asteroid will safely pass us on Mar. 26 of this year, never getting closer than 19 million kilometers (nearly 12 million miles)—about 50 times farther away than the Moon!
But they say the probability of the asteroid hitting Earth is just 1 in 909,000 and the risk of impact is likely to decrease as they collect more information.
VegHead
According to this posting from NASA, the chance of impact is 1 in 250,000.
NerdGoddess
Well. This thread isn't going to help my anxiety. I had a crazy dream this morning that an asteroid was guaranteed to hit earth, and me my boyfriend, family and friends were all in this building holding hands and closing our eyes, just enjoying our potentially last moments with each other. The ground started rumbling like an earthquake, (I've never experienced one in real life) and then a bunch of craziness went down. >>>>> Lets hope its no chance of impact D:
what a strange coincidence. I hope I just heard something about this elsewhere and that's why I had such a bizzare dream.edit on 3/17/2014 by NerdGoddess because: (no reason given)
NerdGoddess
Well. This thread isn't going to help my anxiety. I had a crazy dream this morning that an asteroid was guaranteed to hit earth, and me my boyfriend, family and friends were all in this building holding hands and closing our eyes, just enjoying our potentially last moments with each other. The ground started rumbling like an earthquake, (I've never experienced one in real life) and then a bunch of craziness went down. >>>>> Lets hope its no chance of impact D:
what a strange coincidence. I hope I just heard something about this elsewhere and that's why I had such a bizzare dream.edit on 3/17/2014 by NerdGoddess because: (no reason given)
These things sometimes have smaller companions in similar orbits following along nearby.