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a large asteroid will hit Earth soon,

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arirish View Drop Down
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    Posted: June 22 2017 at 9:31am
Experts warn a large asteroid will hit Earth soon, causing catastrophe

The destruction caused by the impending asteroid strike is inevitable and can be compared to that following the Tunguska event of 1908, according to Astrophysics Research Center expert Dr. Alan Fitzsimmons.

It is only a matter of time before a large asteroid strikes Earth, causing a natural catastrophe that will bring an unprecedented amount of ruin, experts from Northern Ireland have warned.

Dr. Alan Fitzsimmons, an expert at Astrophysics Research Center at Queen's University Belfast (QUB), said that the destruction, which will be caused by the impending asteroid strike is inevitable. He compared it to the destruction of the Tunguska event of 1908, when a meteoroid exploded in orbit above a Siberian forest, raining impactors on the woods below.

Reports state that the impact of the meteoroid explosion was estimated to have been the equivalent of 3 to 5 megatons of TNT (333 to 500 times as much power as the atomic bomb dropped on Hiroshima).

The explosion reportedly flattened 770 square miles of surrounding forest, although no human casualties were reported in the incident. However, had the event occurred at a densely populated area, it would have killed millions of people.

Earth has luckily avoided huge asteroid strikes in recent times. It was reported that in January an asteroid as big as the Tunguska impactor had reached within 110,000 miles of Earth's surface, which is not a very large distance according to astronomical standards.

An asteroid nearly half a mile long is also expected to pass closely to Earth in August 2027, and has a chance of striking the planet on its way.

"It is important to know that scientists and engineers have made great strides in detecting near-Earth asteroids and understanding the threat posed by them," Fitzsimmons said, according to Sputnik news reports. "Over 1,800 potentially hazardous objects have been discovered so far, but there are many more waiting to be found.

"Astronomers find near-Earth asteroids every day and most are harmless. But it is still possible the next Tunguska would take us by surprise, and although we are much better at finding larger asteroids, that does us no good if we are not prepared to do something about them," Fitzsimmons added.

Fitzsimmons contributes to the European Research Council's NEOshield-2 project. The particular project is meant to observe any potentially hazardous asteroids, which could strike Earth in the near future, and to devise cost-effective methods and ways to prevent such a collision.

Reports state that around 2,000 asteroids are currently being monitored by authorities.


http://www.ibtimes.co.in/experts-warn-large-asteroid-will-hit-earth-soon-causing-catastrophe-731806
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Post Options Post Options   Thanks (0) Thanks(0)   Quote carbon20 Quote  Post ReplyReply Direct Link To This Post Posted: June 23 2017 at 3:02pm
plus Yellowstone is showing some very worrying signs......
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An asteroid as big as the Rock of Gibraltar will streak past Earth on April 19 at a safe but uncomfortably close distance, according to astronomers.

"Although there is no possibility for the asteroid to collide with our planet, this will be a very close approach for an asteroid this size," NASA said in a statement.

Dubbed 2014-JO25 and roughly 650 metres (2,000 feet) across, the asteroid will come within 1.8 million kilometres (1.1 million miles) of Earth, less than five times the distance to the Moon.

It will pass closest to our planet after having looped around the Sun. 2014-J25's will then continue on past Jupiter before heading back toward the centre of our Solar System.

Smaller asteroids whizz by Earth several times a week. But the last time one at least this size came as close was in 2004, when Toutatis—five kilometres (3.1 miles) across—passed within four lunar distances.

The next close encounter with a big rock will not happen before 2027, when the 800-metre (half-mile) wide asteroid 199-AN10 will fly by at just one lunar distance, about 380,000 km (236,000 miles).

The last time 2014-JO25 was in our immediate neighbourhood was 400 years ago, and it's next brush with Earth won't happen until sometime after 2600.

The April 19 flyby is an "outstanding opportunity" for astronomers and amateur stargazers, NASA said.

"Astronomers plan to observe it with telescopes around the world to learn as much about it as possible," the US space agency said.

Besides its size and trajectory, scientists also know that its surface is twice as reflective as that of the Moon.

It should be visible with a small optical telescope for one or two nights before moving out of range.

2014-J25 was discovered in May 2014 by astronomers at the Catalina Sky Survey near Tucson, Arizona.

Also on April 19, a comet known as PanSTARRS will make its closest approach to Earth at a "very safe" distance of 175 million km (109 million miles), according to NASA.

The comet has brightened recently and should be visible in the dawn sky with binoculars or a small telescope.

Asteroids are composed of rocky and metallic material, whereas comets—generally smaller—are more typically made of ice, dust and rocky stuff.

Both were formed early in the history of the Solar System some 4.5 billion years ago.



Read more at: https://phys.org/news/2017-04-large-asteroid-hurtle-earth-april.html#jCp
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