Aristotle\\’s opinion… that comets

Aristotle’s opinion… that comets were nothing else than sublunary vapors or airy meteors… prevailed so far amongst the Greeks, that this sublimest part of astronomy lay altogether neglected; since none could think it worthwhile to observe, and to give an account of the wandering and uncertain paths of vapours floating in the Ether. Edmond Halley

A man goes through

A man goes through many changes in 2000 meters. Some are not very pretty. Some make you hate yourself. Some make you wonder if you’ve been rowing for only three or four days. To avoid that fate, we prepared for all possibilities. If a meteor landed 10 feet off our stern, we would not blink. … Read more

Even though I now

Even though I now know that it’s likely the Earth will suffer through mega-volcanoes or meteor strikes that could take out millions or billions of people, I feel less anxious about it because I actually understand what the threats are. There’s nothing like researching something exhaustively to make it less terrifying. Annalee Newitz