Uncategorized
- Astronomy
A Hubble Decade
To celebrate the Hubble Space Telescope’s 10th anniversary, the Space Telescope Science Institute in Baltimore, Md., has created a new Web site devoted to the Earth-orbiting telescope and its spectacular images. Offering much more than pretty pictures, the site recounts Hubble’s discoveries, illustrates how the telescope works, and suggests various educational activities and games. Until […]
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Spying on Plant Defenses: Insects monitor toxin ramp-up
A common caterpillar can sense when a plant is gearing up to manufacture insecticidal toxins and respond by starting up its own detoxification system.
- Earth
Snowball Melting? Ancient formation shows glacier activity
An ancient, well-preserved glacial formation in Oman provided evidence that Earth experienced intermittent ice ages like those in Earth's more recent history.
