The magnetic field associated with these particles helps protect the Earth from cosmic rays by deflecting them from the planet.

ECONOMIST: Climate change: Bubbling up | The

The PLANETARY DEFENSE is not to protect Earth from men from Mars.

FORBES: 'Doomsday Asteroid' Bigger Than Expected

The EarthView survey, conducted by Frederick Schneiders Research on behalf of the National 4-H Council and Honda, found that teen-agers and baby boomers agree that government and industry are falling short of their environmental obligations and that time is running out to protect the Earth from permanent environmental damage.

CNN: Kids on mountain

Some satellite developers are beginning to design spacecraft so that sensitive instruments are located towards the back of the satellite to minimise any risk of impact damage, and the side facing away from earth is shielded to protect it from meteoroids.

ECONOMIST: Orbital debris

This tasty narrative premise is quickly abandoned for two and a half hours of disconnected drivel when the enemy Decepticons invade Chicago, and the Autobots, well-intentioned metal dunderheads who reside on Earth to protect humankind, save the day with help from Sam (LaBeouf).

NEWYORKER: Fired

An earth embankment is being built at Ipswich's docks to protect homes and businesses from flooding.

BBC: Ipswich flood defence work aims to protect dockside homes