- 1： リバースパワースラム(WiMAX)：2013/10/13(日) 21:29:38.64 ID:q75Nhhm50
Meet the Asteroid That Might Hit Earth in 2880
There are over 10,000 near-Earth objects (NEOs) that have been identified so far —
asteroids and comets of varying sizes that approach the Earth’s orbital distance to
within about 28 million miles (45 million km). Of the 10,000 discoveries, roughly 10 percent are
larger than six-tenths of a mile (one kilometer) in size — large enough to have disastrous global
consequences should one impact the Earth.
This is one of them.
First discovered in February 1950, 1950 DA is a 1.1-kilometer-wide asteroid that was observed for
17 days and then disappeared from view. Then it was spotted again on Dec. 31, 2000 — literally on
the eve of the 21st century. Coupled with radar observations made a few weeks later in March 2001
it was found that, along with a rather high rotation rate (2.1 hours), asteroid 1950 DA has a trajectory
that will bring it very close to Earth on March 16, 2880. How close? Close enough that,
within a specific 20-minute window, a collision can not be entirely ruled out.
http://news.discovery.com/space/asteroids-meteors-meteorites/meet-the-asteroid-that-might-hit-earth-in-2880-131008.htm
- 3： イス攻撃(東日本)：2013/10/13(日) 21:30:10.91 ID:VoN3ejjb0
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もう間に合わんな
- 5： クロイツラス(dion軍)：2013/10/13(日) 21:30:58.49 ID:nlVWGQCC0
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ボイランか
- 9： アキレス腱固め(東日本)：2013/10/13(日) 21:31:42.60 ID:Q4hTSxAr0
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２９００年まで生きたかったな
「省略されました。全てを読むにはここを押してください」
