Uncategorized
- Astronomy
Stars in the dust
The dusty disks surrounding three nearby stars show that they played host to massive collisions between asteroid-like objects as recently as 100 years ago.
- Astronomy
Zooming in on a great void
New X-ray observations provide the most detailed view yet of the environment near a supermassive black hole.
- Materials Science
Magnetic nanorods on cruise control
Chemists have created miniature engines out of nanoscale metallic rods that propel themselves using chemical energy.
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Whalebones show damage from diving
Long-lived sperm whales typically develop bone damage not previously observed in marine mammals but found in some human divers who surface quickly or dive frequently.
