Alex Young is interviewed about the current solar cycle and what a magnetic flip means for the earth and NASA’s study of magnetic fields.
Sun expected to ‘flip upside down’ as magnetic field reverses its polarity
The sun’s magnetic field is about to flip upside down as it reverses its polarity.
In August Nasa said the reversal would happen in three to four months time, although that it would be impossible to pinpoint a more specific date.
Solar physicist Todd Hoeksema from Stanford University said that the reversal would have “ripple effects” across the whole of the solar system.
The Telegraph has the full article
A solar eclipse swept across parts of United States, Africa and Europe, temporarily blocking the sun.
The eclipse was a “hybrid” eclipse, where some parts of the world saw an annular or partial eclipse, while others were expected to see a total eclipse where the moon appears to completely block out the sun.
An annular eclipse occurs when the moon’s orbit is at its furthest point from the Earth and closer to the much larger sun. That juxtaposition allows the moon to block more than 90 percent of the sun’s rays when the two orbs slide into alignment in space.
A total solar eclipse occurs when the moon moves between the sun and the earth, blocking out the sun from the areas in the moon’s shadow. Without the sun’s light, the sky darkens enough for stars to be seen and the sun’s corona makes a spectacular halo around the moon.
A magnetic filament of solar material erupted on the sun in late September, breaking the quiet conditions in a spectacular fashion. The 200,000 mile long filament ripped through the sun’s atmosphere, the corona, leaving behind what looks like a canyon of fire. The glowing canyon traces the channel where magnetic fields held the filament aloft before the explosion. Visualizers at NASA’s Goddard Space Flight Center in Greenbelt, Md. combined two days of satellite data to create a short movie of this gigantic event on the sun.
What to Expect from the Sun’s Magnetic Field About to Flip
NASA Astrophysicist Dr. Lika Guhathakurta on why the sun’s magnetic field is about to flip and what it means for earth.
The panic and havoc seen in the Russian Urals last winter when a meteor the size of a house exploded in the skies, may be set for a repeat. Scientists say the huge rock might not have been flying solo as first thought, but rather as part of a group of asteroids which still pose a threat to Earth. READ MORE: http://on.rt.com/0nhpa5
A space telescope aimed at the sun has spotted a gigantic hole in the solar atmosphere — a dark spot that covers nearly a quarter of our closest star, spewing solar material and gas into space.
The so-called coronal hole over the sun’s north pole came into view between July 13 and 18 and was observed by the Solar and Heliospheric Observatory, or SOHO. NASA released avideo of the sun hole as seen by the SOHO spacecraft, showing the region as a vast dark spot surrounded by solar activity.
Coronal holes are darker, cooler regions of the sun’s atmosphere, or corona, containing little solar material. In these gaps, magnetic field lines whip out into the solar wind rather than looping back to the sun’s surface. Coronal holes can affect space weather, as they send solar particles streaming off the sun about three times faster than the slower wind unleashed elsewhere from the sun’s atmosphere, according to a description from NASA.
“While it’s unclear what causes coronal holes, they correlate to areas on the sun where magnetic fields soar up and away, failing to loop back down to the surface, as they do elsewhere,” NASA’s Karen Fox at the agency’s Goddard Space Flight Center in Greenbelt, Md., explained in an image description.
Yahoo News has the full article
(Photo: The European Space Agency/NASA Solar and SOHO)
Amid growing fears of a massive electromagnetic pulse hit from either a solar flare or a terrorist nuclear bomb, House Republicans on Tuesday will unveil a plan to save the nation’s electric grid from an attack that could mean lights out for 300 million Americans. Dubbed the Secure High-voltage Infrastructure for Electricity from Lethal Damage Act, the legislation would push… Read more →
The Sun has unleashed four massive solar flares in two days, each emitting energy equivalent to a billion hydrogen bombs. The latest flare on Wednesday might cause geomagnetic storms on Earth affecting satellites and communications systems. Four significant X-class solar flares left the Sun in just 48 hours, sending powerful bursts of radiation into space, according to Space Weather website…. Read more →