Telescopes work great at night, but some cosmic phenomena demand more than 10 consecutive hours of observation. "Just as you can’t appreciate music that’s chopped up by poor radio reception, we can’t interpret a star’s signals interrupted by the day/night cycle," says Tim Brown, science director of the California-based Las Cumbres Observatory Global Telescope Network, which in five years will allow astronomers to track celestial objects around the clock. When day breaks on one scope, scientists will, through the Internet, switch to another someplace where it’s still night. Telescopes are already online in Hawaii and Australia and will soon include scopes in Chile and South Africa.single page
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.