Earth Raised Magnetic Shield Earlier than Thought

Discovery News ^ | Thursday, March 4, 2010 | Irene Klotz

[SunkenCiv]

Young Earth was cocooned in a protective shield that magnetically deflected killer solar radiation 200 million years earlier than previously thought, a key factor that allowed life to take hold, according to a new study published this week in the journal Science. The research, based on analysis of ancient silicate crystals from South Africa, has implications for the search for life beyond Earth, which to date has focused on finding planets where liquid water can exist. The study by University of Rochester geophysicist John Tarduno and colleagues suggests that the ability of a planet to generate a large magnetic field also is important for developing life, as it provides a shield against high-energy radiation from the parent star.

[SunkenCiv]

Tarduno search hits:

• Turtles Island-Hopped Their Way Across a Warm Arctic
• Catastrophism #80 posted on 04/04/2006
• Researchers May Have Found Origin of Turtle’s Mysterious Shell
• Tropical Turtle Fossil Found in Arctic
• Earth's Magnetic Field Weakens 10 Percent (and some other stuff)

and from the fringe:

• How long have the Scientists Known?

[SunkenCiv]

· join · view topics · view or post blog · bookmark · post new topic · subscribe ·

Google news searches: exoplanet · exosolar · extrasolar ·

[GeronL]

Raise the shields Chekov!!

[SunkenCiv]

· join · view topics · view or post blog · bookmark · post new topic · subscribe ·

[SunkenCiv]

Meanwhile, Picard goes back in time and screws up the origin of life. That baldheaded loser.

[freedumb2003]

[GeronL]

But didn’t we find out that Q was wrong about the primordial soup?? It was at the bottom of the ocean not on the top!

[GeronL]

lol

[GeronL]

SULU: Looks like I saved your hetero butts again!

CHEKOV: Luv ya bunches.

[sinanju]

But it wasn’t till the appearance of the ozone layer halfway through that life was able to come out of the oceans and colonize the land.

[freedumb2003]

Bada-boom! (lol)

[GeronL]

heh

[SunkenCiv]

Q made up a lot of s-.

[kempster]

This is great news or we could all be hanging on some dude’s refrigerator in another world.

[GeronL]

He’s omnipotent, he could care less about misleading poor humans.

[yefragetuwrabrumuy]

[Fiddlstix]

ROTFL!!!

[JoeProBono]

[freedumb2003]

He’s omnipotent, he could care less about misleading poor humans.

"Excuse me. Why does god need a starship?"

[GeronL]

heh