This Week: Death of the mastadon
In the News: Antarctic ozone hole: 10th largest on record!
Coming Thursday: Return of the wild: Coyotes, bears and turkeys are back!
400 years ago, Galileo discovered the moons of Jupiter. We discover water from 11 billion years ago, volcanoes at Titan, a moon of Saturn, and good reasons to shun light pollution.
New analysis uses light to distinguish one diamond from another. Technique may help jewelers, but won’t help the battle against the “conflict diamonds” that are fueling wars in Africa.
The Long Goodbye: 30 years after blast-off, two Voyager spaceships have reached the edge of the solar system. Meet the missions that revolutionized the study of planets and moons.
It’s a boom time for studying Mars, and the perfect time for the be-all, end-all summer vacation. Ride a robot rover. Dune-buggy an unearthly dune field. Even meet-and-greet a real live Martian! All aboard for Mars!
After 20 years, star explosion reveals more secrets. What gives in these giant bangs?