From the NYT report on the Siberia meteor: “I opened the window from surprise — there was such heat coming in, as if it were summer in the yard, and then I watched as the flash flew by and turned into a dot somewhere over the forest,” wrote Darya Frenn, a blogger. “And in several …

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It turns out that our fair planet has been tailed by a shy asteroid for perhaps thousands of years. This “Trojan asteroid” is caught between the gravitational tugs of Earth and the Sun, and is doomed to follow us around in our orbit, and there may be others like it. Per the LA Times: “This is …

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