China passenger train hits 300 mph, breaks record
(AP) -- A Chinese passenger train hit a record speed of 302 miles per hour (486 kilometers per hour) Friday during a test run of a yet-to-be opened link between Beijing and Shanghai, state media said.
Scientists highlight the resurrection of extinct animals as both a strong possibility and a major potential conservation
(Phys.org) —Scientists from across the world have "scanned the horizon" in order to identify potentially significant medium and long-term threats to conservation efforts.
Long-extinct passenger pigeon finds a place in the family tree
With bits of DNA extracted from century-old museum specimens, researchers have found a place for the extinct passenger pigeon in the family tree of pigeons and doves, identifying for the first time this unique ...
Are TGFs Hazardous to Air Travelers?
Instruments scanning outer space for cataclysmic explosions called gamma-ray bursts are detecting intense flashes of gamma-ray energy right here in the friendly skies of Earth. These terrestrial gamma-ray ...
The ethics of resurrecting extinct species
(Phys.org) —At some point, scientists may be able to bring back extinct animals, and perhaps early humans, raising questions of ethics and environmental disruption.
Huge population fluctuations could have preceded passenger pigeon extinction
EarthTalk: Why doesn't U.S. have high-mileage diesel cars, like Europe?
Dear EarthTalk: I don't understand why there are many European diesel cars with very high mileage ratings that are not available in the U.S. Can you enlighten? (John Healy, Fairfield, Conn.)
Obama to announce new car efficiency standards
US President Barack Obama will later this week unveil new fuel efficiency standards for passenger cars and light trucks for the 2017-2025 period, the White House said Wednesday.
Canada confirms 4 swine flu cases among students
(AP) -- Canada became the third country to confirm human cases of swine flu Sunday as global health officials considered whether to raise the global pandemic alert level.
Lightning-produced radiation a potential health concern for air travelers
New information about lightning-emitted X-rays, gamma rays and high-energy electrons during thunderstorms is prompting scientists to raise concerns about the potential for airline passengers and crews to be ...
Fasten seatbelts for bumpier flights, climate study says
Flights will become bumpier as global warming destabilises air currents at altitudes used by commercial airliners, climate scientists warned Monday.
All gone: How erasing billions of birds shocked us
It was the moment that humanity learned we had the awesome power to erase an entire species off the face of the Earth in the scientific equivalent of a blink of an eye: The passenger pigeon went from billions ...
Have we reached peak travel?
Flyers don't turn off phones in planes, survey finds
Despite rules requiring US flyers to turn off their phones and other electronic devices, many people leave them on, a survey showed Thursday.