Another link between CO2 and mass extinctions of species
(Phys.org) —It's has been know that massive increases in emission of CO2 from volcanoes, associated with the opening of the Atlantic Ocean in the end-Triassic Period, set off a shift in state of the climate ...
Goldstone radar snags images of asteroid 2013 ET
(Phys.org) —A sequence of radar images of asteroid 2013 ET was obtained on March 10, 2013, by NASA scientists using the 230-foot (70-meter) Deep Space Network antenna at Goldstone, Calif., when the asteroid ...
After another near miss, professor wants to find asteroids that threaten Earth
(Phys.org) —On Saturday, an asteroid the size of one and a half football fields flew within 240,000 miles of Earth. If the space rock had hit land, it would have leveled an area the size of San Francisco ...
Impact craters may have been cradles of life
(Phys.org)—Even comparatively small meteorite impact craters may have played a key role in the origin and evolution of early life on Earth, according to a researcher at The University of Western Australia.
Asteroids no match for paint gun, says professor
(Phys.org)—There is research that is off the wall, some off the charts and some off the planet, such as what a Texas A&M University aerospace and physics professor is exploring. It's a plan to deflect a ...
NASA scrambles for better asteroid detection
NASA, universities and private groups in the US are working on asteroid warning systems that can detect objects from space like the one that struck Russia last week with a blinding flash and mighty boom.
System would destroy asteroids that threaten Earth
As an asteroid roughly half as large as a football field—and with energy equal to a large hydrogen bomb—readies for a fly-by of Earth on Friday, two California scientists are unveiling their proposal for a system that ...
World's third largest asteroid impact zone found in South Australia
An asteroid measuring up to 20km across hit South Australia up to 360 million years ago and left behind the one of the largest asteroid impact zones on Earth, according to new research published today.
Asteroid whizzes safely past Earth (Update)
A closely tracked asteroid, about 150-feet (45-meters) wide, whizzed safely past Earth on Friday, the same day a much smaller, previously undetected meteor hit Russia, injuring nearly 1,000 people.
New NASA mission to help us better estimate asteroid impact hazard
(Phys.org)—Every year, sensors designed to detect nuclear explosions see harmless bursts in Earth's upper atmosphere from the breakup of an asteroid a few yards across. Tiny asteroids are much more numerous ...
150-foot asteroid will buzz Earth, no need to duck (Update 2)
A 150-foot(45-meter)-wide asteroid will come remarkably close to Earth next week, even closer than high-flying communication and weather satellites. It will be the nearest known flyby for an object of this ...
Research group suggests Chicxulub crater may have been caused by binary asteroids
Preparing for an asteroid strike
ESA and national disaster response offices recently rehearsed how to react if a threatening space rock is ever discovered to be on a collision course with Earth.
Vesta is not an intact protoplanet
Nearly forty years ago, Guy Consolmagno was young graduate student at the University of Arizona's Department of Planetary Sciences; his work there with the late Michael Drake first proposed that asteroid ...