What is more, such asteroids could, in principle, be identified and, with plausible technology, nudged aside.

ECONOMIST: Disasters are about people and planning, not nature��s pomp

Led by Principle Investigator and Spokesperson Samuel Ting of the Massachusetts Institute of Technology, the AMS team includes some 600 physicists from 56 institutions in 16 countries from Europe, North America and Asia.

ENGADGET: AMS detects excess of positrons, could suggest existence of dark matter

In principle, it suffices to have the financial means and the sophisticated technology needed to explore a world that in parts lies as far as 11 km beneath the ocean surface.

UNESCO: MEDIA SERVICES

This overarching principle -- that we must invest in and embrace the innovation and technology of the future and not the past -- that applies beyond our energy policy.

WHITEHOUSE: Moving Forward on a New Foundation

Since 1999, adhering to the principle of "driving product, service and management innovation via system and technology innovation", Wasu has developed into a large state-owned media group in China with rapid development driven by "new media, new network".

ENGADGET: Motorola Mobility launches Android-powered HMC3260 'Cloud Broadband' media streamer

In principle, there are three ways of limiting human environmental impacts: through population policy, technology and governance.

ECONOMIST: Demography, growth and the environment