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| NEW SPRAYS CATCH ELUSIVE FINGERPRINTS |
| Forensics experts will no longer need to collect fingerprints from smooth surfaces, according to Australian research, which has tested new chemical sprays that allow prints to be lifted from surfaces as rough as bricks. |
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| LASER BEAMS HELP TAKE THE TWINKLE OUT OF STARLIGHT |
| If you have ever peered down a highway on a sunny day, you have probably seen the rising, wavelike ripples of heated air that distort the appearance of objects near the horizon. Similar disturbances in the atmosphere above us make stars twinkle as their light is distorted on the way down to Earth. |
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