Sentences with phrase «posed by asteroids»

A stark reminder of the risk posed by asteroids and meteors came in 2013, when the 66 - foot - wide Chelyabinsk meteor fell over Russia's southern Ural region.

«This report is a reasonable step forward in trying to understand and come to grips with the hazards posed by asteroids and comet impactors,» said geophysicist Jay Melosh, a distinguished professor in the Department of Earth, Atmospheric and Planetary Sciences at Purdue University in Lafayette, Indiana.

Not exact matches

The likelihood that one of these space rocks poses a real threat to human lives may be low — researchers at Prince - ton University have placed 1 - in - 5,000 odds on an asteroid two - thirds of a mile across smacking into Earth sometime in the next century (for comparison, the risk that you will be struck by lightning in your lifetime is about 1 in 3,000)-- but the stakes are high.

«NEA Scout will perform a reconnaissance fly - by and take pictures of an asteroid to learn more about the risks and challenges they may pose to future human exploration missions,» said Les Johnson, NEA Scout's solar sail principal investigator at Marshall.

Such evidence could help scientists gauge the danger posed today by medium - size comets or asteroids.

Asteroid 2014 UR116, discovered by Russian scientists on Oct. 27, 2014, measures 1,312 feet (400 meters) across, but does not pose an impact danger to Earth, according to NASA.

A new study of the hazards posed by impact - generated waves suggests that coastlines face substantial risks of being slammed by tsunamis from asteroid spla

Researchers have used computer models to show that tsunamis from rare kilometer - sized asteroids could wipe out entire coasts, but no one had studied the hazards posed by smaller impacts.

Under this office, NASA's Asteroid Threat Assessment Project has been established to develop predictive tools, including physics - based computer simulations, to assess the impact threat posed by so - called «near - Earth asteroids» and a subclass of these objects deemed «potentially hazardous asteroids.»

It is classified by the International Astronomical Union's Minor Planet Center as a «potentially hazardous» asteroid, although it poses no risk to Earth.