Astronomers are warning us that asteroid 2014 DX110 is on target to hurtle between the Earth and the Moon on Wednesday, passing close to our planet at a distance of just 217,000 miles (350,000km).

At 98ft (30m), 2014 DX110 is a relatively large object belonging to the Apollo class asteroid group, a class of Earth-crossing objects that pose a potential threat of impact. Scientists are currently aware of 240 Apollo asteroids, but it is thought that there could be at least 2000 Earth-crossers with diameters of 1 km or larger. If one of these giants hit Earth, it could carve out a crater about 10-20 times its own size.
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In the last few hours, a "Deep Impact" style scenario has unfolded in space as a huge asteroid grazed past Earth last night at 27,000mph.

The asteroid passed within 2 million miles of Earth, not exactly a "near miss" but close enough to make scientists sit up and track its progress with more than a passing interest.

The asteroid, known as 2000 EM26, was a chunk of space rock of around 885 feet (270m)in diameter, and was discovered on March 5th 2000.
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Near-Earth asteroid 2013 NE19, which is about the size of a football field, passed within 2.6 million miles of Earth on July 22. There was no danger that it would strike Earth, but there is a concern because it was discovered just last Monday (July 15). Had it been aimed at Earth, we would have had just eight days to prepare. An object that size would have the potential to cause serious damage, even catastrophic damage, if it struck a populated area or a part of the ocean that might have led to tsunamis. There are estimated to be tens of thousands of undocumented asteroids in space, and so far no comprehensive program with sufficient funding to identify and track them all.

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Asteroid 2013 LR6 will pass within 70,000 miles of Earth tonight, making its closest approach over Tasmania at 9:42 Pacific Time. The asteroid is 30 feet in diameter and NASA says it has no chance of striking our planet. What is a matter for concern, though, is that it was just discovered two days ago, on June 6. The discovery was made by NASA’s Catalina Sky Survey. The fact that it is not going to strike Earth is a matter largely of chance, and its discovery such a short time ago is an indication of how urgently NASA needs funding for a much more extensive near earth asteroid identification program.
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