Stephen Ornes' Articles
- Raindrops shouldn't be able fall faster than what is known as their terminal velocity. But no one told the rain. Researchers have found droplets breaking that speed limit.
- From keeping tabs on changing landscapes to protecting animals from poachers, scientists are using drones to push their fields forward.
- In the 1970s, physicist Stephen Hawking suggested that some particles could escape a black hole. An experiment now shows how, using a lab-made black hole ‘made’ from sound.
- Cleaning up toxic waste is a big and expensive problem. Scientists have tinkered with the genes in some plants. Now those greens can take on this dirty work. Still, they're not quite ready for prime time.
- Scientists thought that cave art started in Europe. New analyses now dash that assessment. Stencils in an Indonesian cave are every bit as old as the better-known drawings in caves in France and Spain.
- High-energy bursts of ultraviolet light can break apart carbon dioxide, yielding oxygen gas. The experiment may mimic what happened on Earth billions of years ago.
- Study finds new link between the body and brain in mice and may help explain how exercise heals.
- Scientists probing a cloud of dust and gas some 26,000 light-years away found a chemical with a structure resembling molecules critical for all life on Earth.
- People use saccharin and other artificial sweeteners to try to stay healthy. A study now suggests such sweeteners might actually cause harm by encouraging the wrong bacteria to grow in our guts.
- This is not your average robot. It flies through the air, propelled by an explosion in one of its arms. It could prove useful in disaster areas or war zones.