NASA confirmed that a half a football field-sized asteroid passing Earth next week
United States National Aeronautics and Space Administration confirmed that an approximate size of half a football field of asteroid passing Earth in the next week, than some satellites more "close to" the Earth, but will not hit the Earth "Canopy crisis.
No crisis hit the Earth
United States National Aeronautics and Space Administration researchers said the asteroid about 45 meters in diameter, may GMT at 19:00 on the the 15th (Beijing time at 3:00 on the 16th), passing speed of about 2.8 kilometers per hour by the Indian Ocean Sumatra island empty , the closest distance of the asteroid with the Earth's surface is about 27,000 km.
In contrast, hundreds of pieces of communications and weather satellites orbit about 35,000 km above the ground.
The researchers confirmed While this asteroid is no risk of striking Earth. The United States National Aeronautics and Space Administration's Jet Propulsion Laboratory Near-Earth Objects senior researcher Don Yeomans, repeatedly stressed at a news conference: "rocket asteroid's orbit is well known, there is no impact (Earth) may."
He said, "If" While this planet hit the Earth, the equivalent of 2.4 million tons of TNT exploded.
The Yeomans simultaneously infer that asteroid passing does not pose a threat to communications and weather satellites. "People do not, it will not red card." Yeomans said, "I is not expected to have any trouble."
While this asteroid last year by the Spaniards found named 2012DA14, mainly composed of silicate, specific shape and exact size or mystery. Expected in it passing close to Earth, people in some areas with the naked eye or with the aid of a simple telescope.
Occur once every 40 years
While this asteroid hit the earth's risk, but it is close to passing phenomenon that is necessary to track the trajectory of near-Earth asteroids.
The United States National Aeronautics and Space Administration, said the track nearly a million stars in the body closer to the Earth's distance in the past 15 years, the total number of stars within less than a related area into. NEOs senior staff Lindley Johnson said: "We are the world (researchers) are not all that money spent on this matter.
The researchers did not completely rule out the Earth by the asteroid risk, but generally finds that this possibility is extremely small. United States National Aeronautics and Space Administration estimate 2012DA14 similar size asteroid passing close to Earth phenomenon occurs once about every 40 years, the event may be the type of asteroid impacts Earth once every 1,200 years.
Send astronauts to asteroid
In addition to close monitoring, the United States is considering to further explore the asteroid. U.S. President Barack Obama a few years ago, decades after the astronauts sent to the asteroid.
The senior staff of the NEO project Johnson said, the U.S. National Aeronautics and Space Administration is considering the explore asteroids variety of options, the most recent of a plan for the 2016 launch of a spacecraft to a large asteroid collect samples. While this spacecraft is expected to return to Earth in 2023.
For the people of the earth, some asteroids regarded as treasures. Some rich rare metal resources, is a supplement to the Earth's natural resources. On the other hand, some asteroids can provide shortcut access to resources for future solar system exploration, the human without resupply from Earth outward.
United States National Aeronautics and Space Administration confirmed that an approximate size of half a football field of asteroid passing Earth in the next week, than some satellites more "close to" the Earth, but will not hit the Earth "Canopy crisis.
No crisis hit the Earth
United States National Aeronautics and Space Administration researchers said the asteroid about 45 meters in diameter, may GMT at 19:00 on the the 15th (Beijing time at 3:00 on the 16th), passing speed of about 2.8 kilometers per hour by the Indian Ocean Sumatra island empty , the closest distance of the asteroid with the Earth's surface is about 27,000 km.
In contrast, hundreds of pieces of communications and weather satellites orbit about 35,000 km above the ground.
The researchers confirmed While this asteroid is no risk of striking Earth. The United States National Aeronautics and Space Administration's Jet Propulsion Laboratory Near-Earth Objects senior researcher Don Yeomans, repeatedly stressed at a news conference: "rocket asteroid's orbit is well known, there is no impact (Earth) may."
He said, "If" While this planet hit the Earth, the equivalent of 2.4 million tons of TNT exploded.
The Yeomans simultaneously infer that asteroid passing does not pose a threat to communications and weather satellites. "People do not, it will not red card." Yeomans said, "I is not expected to have any trouble."
While this asteroid last year by the Spaniards found named 2012DA14, mainly composed of silicate, specific shape and exact size or mystery. Expected in it passing close to Earth, people in some areas with the naked eye or with the aid of a simple telescope.
Occur once every 40 years
While this asteroid hit the earth's risk, but it is close to passing phenomenon that is necessary to track the trajectory of near-Earth asteroids.
The United States National Aeronautics and Space Administration, said the track nearly a million stars in the body closer to the Earth's distance in the past 15 years, the total number of stars within less than a related area into. NEOs senior staff Lindley Johnson said: "We are the world (researchers) are not all that money spent on this matter.
The researchers did not completely rule out the Earth by the asteroid risk, but generally finds that this possibility is extremely small. United States National Aeronautics and Space Administration estimate 2012DA14 similar size asteroid passing close to Earth phenomenon occurs once about every 40 years, the event may be the type of asteroid impacts Earth once every 1,200 years.
Send astronauts to asteroid
In addition to close monitoring, the United States is considering to further explore the asteroid. U.S. President Barack Obama a few years ago, decades after the astronauts sent to the asteroid.
The senior staff of the NEO project Johnson said, the U.S. National Aeronautics and Space Administration is considering the explore asteroids variety of options, the most recent of a plan for the 2016 launch of a spacecraft to a large asteroid collect samples. While this spacecraft is expected to return to Earth in 2023.
For the people of the earth, some asteroids regarded as treasures. Some rich rare metal resources, is a supplement to the Earth's natural resources. On the other hand, some asteroids can provide shortcut access to resources for future solar system exploration, the human without resupply from Earth outward.
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