Articles tagged "magnetic field"

milky way magnetic field

Astronomers map Milky Way's magnetic field

Astronomers from the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and Curtin University, in collaboration with colleagues from Europe, Canada, and South Africa published the most accurate catalog of measurements towards mapping the Milky...

December 01, 2019

featured magnetic field oceans esa

Swarm tracking changes in oceans' magnetic field in more detail that ever before

ESA’s Swarm mission is continually yielding more insight into how our protective shield is generated, how it behaves and how it is changing. Adding yet another string to its bow, Swarm is now tracking changes in the magnetic field produced in the oceans in...

April 11, 2018

supermassive black hole

Cosmic accelerators and the magnetic structure of matter

Current physics theories are not only unable to explain the origin of magnetic fields in the Universe as a whole, but also, the intense galactic magnetic fields in spiral galaxies and the sources of high energy particles, both charged and neutral particles (Cosmic...

February 12, 2018

earth magnetic field study

Study finds Earth’s magnetic field ‘simpler than we thought’

Scientists have identified patterns in the Earth’s magnetic field that evolve on the order of 1 000 years, providing new insight into how the field works and adding a measure of predictability to changes in the field not previously known. The discovery also...

July 08, 2017

highest resolution map of earth s lithospheric magnetic field

Highest resolution map of Earth’s lithospheric magnetic field

After three years of collecting data, Swarm mission scientists have produced the highest resolution map of Earth’s lithospheric magnetic field from space to date. The dataset combines measurements from ESA’s Swarm satellites with historical data from the...

March 21, 2017

quartz crystals earth core power magnetic field

"Quartz" crystals at the Earth's core power its magnetic field

Scientists at the Earth-Life Science Institute at the Tokyo Institute of Technology reported in Nature yesterday their unexpected discoveries about the Earth's core. The findings include insights into the source of energy driving the Earth's magnetic field,...

February 23, 2017

cohenmagneticfield

Missing link in metal physics explains Earth’s magnetic field

Earth’s magnetic field is crucial for our existence, as it shields the life on our planet’s surface from deadly cosmic rays. It is generated by turbulent motions of liquid iron in Earth’s core. Iron is a metal, which means it can easily conduct a flow

January 29, 2015

gradient sun

Visualization of Sun's magnetic fields: Gradient Sun

NASA’s Goddard Space Flight Center’s visualization studio made an amazing video of Sun using a gradient filter which highlighted the details of the sun's complex magnetic fields. Gradient filter helps researchers in better understanding how solar activity affects

October 22, 2012

Jesper GrAcnne JG nordlys2012 2 15_1329376899_med1

Crack that opened in Earth's magnetic field on Feb 15th still a puzzle to scientists

On February 10th there was filament eruption in the northern hemisphere that produced CME which traveled few days before reaching our magnetosphere on February 14. As magnetic disturbance rippled around the Arctic circle on February 14th, it opened a crack in our

February 17, 2012

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A minor solar wind stream is buffeting Earth's magnetic field

A minor solar wind stream is buffeting Earth's magnetic field. Arctic sky watchers should be alert for auroras.Solar windspeed: 469.1 km/secdensity: 2.3 protons/cm3The Radio Sun10.7 cm flux: 135 sfuPlanetary K-indexNow: Kp= 1 quiet24-hr max: Kp=

December 12, 2011

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The large sunspot cluster 1319 harboring energy for solar flares

Active region 1319 contains many individual sunspots. The swarm is growing. Over the weekend, the sunspot group's total area nearly tripled as shown in this movie from the Solar Dynamics Observatory: As AR1319 has grown, the complexity of its magnetic field

October 17, 2011

cometandcme

Comet and Coronal mass ejection

A comet discovered by amateur astronomers on Friday, Sept. 30th, disintegrated in spectacular fashion the very next day when it plunged into the sun. The Solar and Heliospheric Observatory recorded the comet's last hours. The end was punctuated by an unexpected

October 04, 2011

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Double eruption on Sun

On October 1st around 10:17 UT, widely-spaced sunspots 1302 and 1305 erupted in quick succession, revealing a long-distance entanglement which was not obvious before. NASA's Solar Dynamics Observatory (SDO) recorded the movie of the double blast:Since it was

October 02, 2011

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Aurora reverberations

A CME hit Earth's magnetic field on Sept. 26th, sparking one of the strongest magnetic storms in years. At the peak of the Kp=8 disturbance, auroras were sighted around both poles and more than half a dozen US states. Magnetic reverberations continued for more than 48

September 29, 2011

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Incoming CME and new sunspots

Yesterday, Sept. 14th, an eruption near sunspot 1289 hurled a CME in the general direction of Earth. Analysts at the Goddard Space Weather Lab expect the cloud to deliver a glancing blow to our planet's magnetic field on Sept 17th around 04:30 UT. There are no large

September 15, 2011

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Geomagnetic storm subsiding, expecting more CMEs

The first of several CMEs en route to Earth struck our planet's magnetic field on Sept. 9th around 1130UT. The impact sparked a strong (Kp=7) geomagnetic storm, which is now subsiding. Last night Northern Lights were spotted in the United States as far south

September 10, 2011

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New sunspots forming, Venus-directed CME

Yesterday, the Solar and Heliospheric Observatory witnessed a spectacular explosion on the sun that seemed to pass perilously close to Venus.As the movie shows, the CME passed harmlessly. There was no collision, and it wasn't even close. Although Venus seems to be

August 17, 2011

Emil Kraaikamp1_strip

Massive double Sunspot 1263 - wider than the Earth - harbors energy for powerful X-class solar flares!

Double sunspot 1263 is a whopper. Its two dark cores are each wider than Earth, and the entire region stretches more than 65,000 km from end to end. The clarity of  image is impressive. Note the granulation of the stellar surface surrounding the main dark cores.

August 02, 2011

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Gigantic jets of lightning in Earth’s upper atmosphere puzzle scientists

Mysterious and gigantic jets of lightning that shoot up to near the edge of space have now been observed in unprecedented detail, revealing just how much charge they pack and how they form. More than 50 miles (80 kilometers) above Earth's surface, extreme...

July 26, 2011

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Geomagnetic storm warning!

A fast-moving stream of solar wind is buffeting Earth's magnetic field. The combined effect of this stream plus a CME expected to arrive soon has prompted NOAA forecasters to declare a 30% to 35% chance of geomagnetic storms on June 23-24. High-latitude sky watchers

June 23, 2011

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Impact of solstice solar flare is expected on June 24th

A CME propelled toward Earth by the "solstice solar flare" of June 21st may be moving slower than originally thought. Analysts at the GSFC Space Weather Lab have downgraded the cloud's probable speed from 800 km/s to 650 km/s. Impact is now expected on June 24th at

June 22, 2011

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Solar wind hit Earth's magnetic field

A sharp gust of today, June 17th, at approximately 0230 UT. This probably signaled the arrival of a CME, en route from the sun since June 14th.

June 17, 2011

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US West coast EQ predictions

In today's article named Alarming magnetic field changes signal major quake for West Coast author presents Jim Berkland, former USGS scientist well-known by his accurate earthquake predictions so far. They say his accuracy is about 80%. his greatest claim to

March 19, 2011

sunspot cycle

NASA-sponsored research explains missing sunspots

WASHINGTON -- NASA-sponsored research has resulted in the first computer model that explains the recent period of decreased solar activity during the sun's 11-year cycle.This recent solar minimum, a period characterized by a lower frequency of sunspots and solar

March 02, 2011

berkeley laser magnetometer lg

Ground-Based Lasers Vie With Satellites To Map Earth's Magnetic Field

Mapping the Earth's magnetic field - to find oil, track storms or probe the planet's interior - typically requires expensive satellites. University of California, Berkeley, physicists have now come up with a much cheaper way to measure the Earth's magnetic field

February 22, 2011

Pete Lawrence1_strip

A solar CME hit Earth's magnetic field

IMPACT! A CME hit Earth's magnetic field at approximately 0100 UT on Feb. 18th (8:00 pm EST on Feb. 17th). The impact was not as strong as expected considering the cloud's

February 18, 2011