TV News LIES

Sunday, Apr 26th

Last update03:08:15 AM GMT

You are here News Science NASA Images the Entire Sun, Far Side and All

NASA Images the Entire Sun, Far Side and All

NASA Images the Entire Sun, Far Side and AllIt might not seem obvious why anyone should care what's happening on the other side of the Sun. But NASA can explain: our home star is a seething, roiling ball of superhot gas that goes through cycles of relative quiet, punctuated by violent outbursts. Every so often, the Sun spits out a blob of charged subatomic particles — and occasionally, one of them is aimed directly at the Earth.

These eruptions, known as coronal mass ejections, aren't enough to hurt the planet physically; they're very hot, but also very insubstantial. What they can do is fry the electronics of communications satellites, and even put astronauts in danger of a radiation overdose.

These electronic storms are part of the broader phenomenon known as "space weather," and it's good to have as much warning as possible when the Sun is looking angry. (See a total eclipse of the sun.)

The problem is that its angry face might be turned away from us, and it takes 12 days or so for the far side to rotate into view. That's one major reason that NASA launched the twin STEREO spacecraft (for Solar TErrestrial RElations Observatory) in 2006 to take up positions orbiting on opposite sides of the Sun.

The satellites constantly image the Sun in several different wavelengths of light, which come from various layers near the Sun's surface, because the sunspots and magnetic storms that generate space weather — just like hurricanes and thunderstorms on Earth — have a three-dimensional structure.

More...


Most Recent Related Stories...


25 years later: Who got the Hubble telescope off the ground?

Hubble Space TelescopeOn the 25-year anniversary of the launch of the Hubble Space Telescope, Space.com talked with science...

Chicago offers reparations package to police torture victims

Rom EmanuelMayor Rahm Emanuel and several Chicago aldermen are offering what they call a reparations package for...

Scientists genetically modify human embryos in controversial world first

Genetically modified embryoScientists in China have genetically modified human embryos in a world first that has re-ignited the...

CERN restarts Large Hadron Collider, seeks dark universe

CERN restarts Hadron colliderScientists at Europe's physics research center CERN on Sunday restarted their "Big Bang" Large Hadron Collider...
 
America's # 1 Enemy
Tee Shirt
& Help Support TvNewsLIES.org!
TVNL Tee Shirt
 
TVNL TOTE BAG
Conserve our Planet
& Help Support TvNewsLIES.org!
 
Get your 9/11 & Media
Deception Dollars
& Help Support TvNewsLIES.org!
 
The Loaded Deck
The First & the Best!
The Media & Bush Admin Exposed!