The Keck Telescopes The Keck telescopes: How they work Published Aug 27, 2002 1:26 AM Science SHARE Illustration by Garry Marshall Science MORE TO READ RELATED Halloween treats can be a trick for the environment—but there are sustainable swaps Looking for easy-to-recycle candy packaging, or even getting creative in your own kitchen, can make trick-or-treating a bit more eco-friendly. READ NOW RELATED In constant darkness, Arctic krill migrate by twilight and the Northern Lights Polar krill have eyes that are ultra-sensitive to daily light cycles. RELATED Kīlauea has belched 4.2 billion gallons of lava—and it isn’t done yet The volcano is giving us a show with glass, lava lakes, and vog (yes, you read that correctly).
