Will Apophis Hit Earth in 2036? NASA Rejects Russian Report
2011-02-07 0:00

By Michelle Bryner | Space.com


In 2004, NASA scientists announced that there was a chance that Apophis, an asteroid larger than two football fields, could smash into Earth in 2029. A few additional observations and some number-crunching later, astronomers noted that the chance of the planet-killer hitting Earth in 2029 was nearly zilch.


The asteroid Apophis was discovered on June 19, 2004. It will fly within 18,300 miles of Earth on April 13, 2029,
but poses little risk of impact.UH/IA

Now, reports out of Russia say that scientists there estimate Apophis will collide with Earth on April 13, 2036. These reports conflict on the probability of such a doomsday event, but the question remains: How scared should we be?

“Technically, they’re correct, there is a chance in 2036 [that Apophis will hit Earth]," said Donald Yeomans, head of NASA’s Near-Earth Object Program Office. However, that chance is just 1-in-250,000, Yeomans said.

The Russian scientists are basing their predictions of a collision on the chance that the 900-foot-long (270 meters) Apophis will travel through what’s called a gravitational keyhole as it passes by Earth in 2029. The gravitational keyhole they mention is a precise region in space, only slightly larger than the asteroid itself, in which the effect of Earth’s gravity is such that it could tweak Apophis’ path.

“The situation is that in 2029, April 13, [Apophis] flies very close to the Earth, within five Earth radii, so that will be quite an event, but we’ve already ruled out the possibility of it hitting at that time,” Yeomans told Life’s Little Mysteries. “On the other hand, if it goes through what we call a keyhole during that close Earth approach … then it will indeed be perturbed just right so that it will come back and smack Earth on April 13, 2036,” Yeomans said.

The chances of the asteroid going through the keyhole, which is tiny compared to the asteroid, are “minuscule,” Yeomans added.

The more likely scenario is this: Apophis will make a fairly close approach to Earth in late 2012 and early 2013, and will be extensively observed with ground-based optical telescopes and radar systems. If it seems to be heading on a destructive path, NASA will devise the scheme and machinery necessary to change the asteroid’s orbit, decreasing the probability of a collision in 2036 to zero, Yeomans said.

There are several ways to change an asteroid’s orbit, the simplest of which is to run a spacecraft into the hurtling rock. This technology was used on July 4, 2005, when Deep Impact smashed into the comet Tempel 1.


Article from: space.com




Related Articles
It’s called Apophis. It’s 390m wide. And it could hit Earth in 31 years’ time (2005)
NASA Deep Impact spacecraft flies by small comet
Deep Impact Galactica - Countdown to Birth of ’Lucifer’ 2010-2012
Russia, US at Odds Over Future Asteroid Hit
Red Ice Radio - Freeman - Obama, Cloning & The Coming Space War
Astronauts want plan ready for asteroid hits


Latest News from our Front Page

The Viking ”Maine Penny” Mystery
2015-03-05 3:41
In 1957, during his second year of digging at the Goddard site; a large prehistoric Indian trade village in Penobscot Bay on the central Maine coast, local resident and amateur archaeologist Guy Mellgren found a small silver coin. The coin is later identified by experts as a Norse silver penny dating to the reign of Olaf Kyrre, king of Norway ...
The Sagas of the (Viking) Icelanders Shed Light on Golden Age
2015-03-05 3:40
The Sagas of the Icelanders have long been preserved as the most comprehensive specimen of the literary culture of the 13th and 14th centuries of Iceland. In writing these sagas, many attributes of the 10th and 11th centuries were conserved, particularly individual biographies, the history of family feuds, and the overall evolution of the one of the greatest settlements ...
Benjamin Netanyahu's Full Speech to Congress
2015-03-05 1:36
Here is the full speech of Pathological Zionist Liar Benjamin Netanyahu to the United States Congress. "And the Oscar goes too ...." Description from YouTube: Prime Minister Benjamin Netanyahu of Israel used one of the most prominent platforms in the world on Tuesday to warn against what he called a “bad deal” being negotiated with Iran to freeze its nuclear program, bringing ...
The FDA Admits That Prior to 2011 Over 70% of U.S. Chickens Contained Cancer-Causing Arsenic
2015-03-04 20:32
Prior to 2011, the cancer-causing toxic chemical Roxarsone, which in high doses could kill you, was being added to chicken feed on purpose, giving store-bought chicken the illusion of healthy coloring and plump appearance. Shockingly, this was the case with more than 70 percent of all U.S. chickens! A recent article was published stating that this continued to be the ...
The Truth About Starbucks New Coconut Milk: It Isn’t Really Coconut Milk
2015-03-03 22:14
In an attempt to appeal to the non-dairy crowd, Starbucks is bringing “coconut milk” to the masses. After a successful trial run in select cities at the behest of their customers, Starbucks has decided to push forward with their dairy alternative. Providing a non-dairy alternative to dairy and soy is the second most requested customer idea of all time from MyStarbucksIdea.com, ...
More News »