10.31.2015

Video: NASA Asteroid Tracking TB145

Radio Telescope
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NASA Asteroid Tracking with radio telescopes TB145

October 31, 2015 Updated 04:41 GMT

An asteroid named TB145 spend a few hundred thousand kilometers from Earth.

Astronomers have discovered its existence only in this month.

Scientists say that we do not meet for less than 100 years.

Tim Allman reports.

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