03/11/2014

How a giant impact formed asteroid Vesta's 'belt'

When NASA's Dawn spacecraft visited the asteroid Vesta in 2011, it showed that deep grooves that circle the asteroid's equator like a cosmic belt were probably caused by a massive impact on Vesta's south pole. Now, using ...

Security contractor breach not detected for months

A cyberattack similar to previous hacker intrusions from China penetrated computer networks for months at USIS, the government's leading security clearance contractor, before the company noticed, officials and others familiar ...

Lever under scrutiny in Virgin spaceship disaster (Update)

A prematurely deployed slowing device could "well be" behind the Virgin Galactic spaceship crash, Virgin's boss Richard Branson said Monday while hitting out at "hurtful" critics and "self-proclaimed experts."

US voters more social, mobile: study

The 2014 US midterm elections are decidedly more social and mobile than the last time around, according to a new report.

NASA sees Super Typhoon Nuri's eye open in two days

Over the course of two days, from Nov. 1 to Nov. 3, NASA's Aqua satellite watched from space as Tropical cyclone Nuri strengthened into a Super Typhoon and "opened" or developed an eye.

Variations in ice sheet height influence global climate

In a study published today in PNAS (Proceedings of the National Academy of Sciences), Dr William Roberts of Bristol's School of Geographical Sciences and colleagues use computer models to simulate a Heinrich event in Hudson ...

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