Articles tagged "space weather"

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Solar filament eruption, possible glancing blow on November 29

A solar filament was observed lifting off the Sun's northeastern quadrant beginning at approximately 04:45 UTC on November 25, 2017. An associated weak Coronal Mass Ejection (CME) was observed in SOHO/LASCO C2 and C3 imagery and the analysis shows a potential...

November 26, 2017

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Remarkable pink aurora outburst over Norway

Over the past couple winters, big displays of pink and white auroras have coincided with spotless suns. The sight is often big enough to make observers wonder if there is a connection, SpaceWeather reports. The most recent remarkable outburst of pink auroras was...

November 25, 2017

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Game changer for space weather forecasting: Regional geomagnetic products debut

This month, for the first time, scientists have started using a new geospace forecast model that can give unique data for each 900 km2 (350 mi2) plot of Earth, up to 45 minutes before a solar storm hits. The model provides short-term guidance of the state of...

October 13, 2016

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Extreme space weather event that could have led to a nuclear war

For the first time, retired U.S. Air Force officers involved in forecasting and analyzing the extreme space weather event of May 23, 1967, collectively and publicly describe how great solar and geomagnetic storm at the height of the Cold War almost led to a...

August 09, 2016

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Robust CME simulation model developed for future of space weather forecasting

Japanese scientists have developed a new and robust simulation code for Coronal Mass Ejection (CME) events based on the realistic description of the mechanisms behind their generation and propagation through space. The method has been successfully validated using...

March 07, 2016

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Using maths to reveal the Sun's magnetic field mysteries

An important research project, led by the UK's University of Dundee, aims to improve knowledge of Sun's complex magnetic fields using mathematics. The goal is to find out the effects of space weather caused by the Sun and its magnetic structures origins....

December 25, 2015

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Kongpop U-yen, PhD: Evidence of space weather induced natural disasters - EU2014

Strong solar activities have long been known to cause damages to electrical grids and global communication systems. However, there exist evidence that solar activities have strong correlation with abrupt weather conditions and tectonic activities, including storm...

August 31, 2014

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THEMIS discovers new process that protects Earth from space weather

In the giant system that connects Earth to the sun, one key event happens over and over: solar material streams toward Earth and the giant magnetic bubble around Earth, the magnetosphere helps keep it at bay. The parameters, however, change: The particles streaming in

March 08, 2014

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Intro to space weather vocabulary - video

Heliophysics scientists study energy transformation from one event to the other and which electromagnetic waves create which conditions near Earth. Space weather effects can disrupt satellites in space, so scientists need to understand the system in even more detail.

May 06, 2013

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New research to focus on energy distribution in upper atmosphere

"Understanding interaction between the Earth’s magnetic field, or magnetosphere, and its upper atmosphere – known as the thermosphere/ionosphere – is especially important this year and in 2014, said Yue Deng, an assistant physics professor at University of Texas.

March 12, 2013

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Steps to organize an international response to space weather effects

We are now fully into solar maximum and the United Nations is taking steps to organize an international response to space weather effects. Space weather was added to the regular agenda of the COPUOS Science and Technical Subcommittee, which means the UN is recognizing

February 14, 2013

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Space weather highlights: October 15 - 21, 2012

Solar activity ranged from low to high levels in last 7 days. Activity was low during October 15 - 19 due to mostly low-level C-class flares. The largest flare of this interval was a C7 on October 17, 2012 at 08:02 UTC from Region 1596 (N07, L=150, class/area

October 22, 2012

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Space weather highlights for May 14 - May 20, 2012: 13 C-class and one M-class flare

Solar activity ranged from very low to moderate levels. Region 1476 (N09, L=180, class/area Fkc/1050 on 09 May) continued to be the major contributor of x-ray flare activity throughout the week. It produced 13 C-class flares and an M-flare.Region 1476 began the

May 21, 2012

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EU physicists use 20 new satellites to forecast space weather

The northern lights interfere with radio communications, GPS navigation and satellite communications. Researchers are now going to launch 20 satellites containing world class instruments from the University of Oslo to find out why.Satellites are becoming increasingly

May 15, 2012

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Solar ‘climate change’ could cause rougher space weather

Recent research shows that the space age has coincided with a period of unusually high solar activity, called a grand maximum. Isotopes in ice sheets and tree rings tell us that this grand solar maximum is one of 24 during the last 9300 years and suggest the high

March 30, 2012

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CME will likely pass above Earth's north side on Jan 22, auroras expected

NOAA/SWPC have determined that the CME from Active Region 1402 near disk center from the latest M3 solar flare will likely pass above (north) of Earth. This glancing blow will cause just G1 (Minor) Geomagnetic Storm activity. We can expect first signs  starting from

January 21, 2012

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Another Venus-directed CME

A magnetic prominence dancing along the sun's southeastern limb became unstable on Nov. 15th and slowly erupted. NASA's Solar Dynamics Observatory recorded the coronal mass ejection (CME), which unfolded over a period of thirteen hours: The eruption hurled a cloud

November 16, 2011

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Sun is active again: M1.6 flare & sundiving comet

A Solar Flare reaching M1.6 peaked at 03:25 UTC Thursday morning and appears to be centered off the northwest limb near Sunspot 1318 which is rotating out of direct earth view.Solar activity remains at fairly low levels with only small to mid sized C-Class flares

October 20, 2011

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Farside CME heading for Mercury

Yesterday, October 4th, something exploded on the far side of the sun and propelled a spectacular CME into space. The Solar and Heliospheric Observatory recorded the cloud as it emerged from behind the sun's limb:Analysts at the Goddard Space Weather Lab have

October 05, 2011

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Strong solar activity causing severe geomagnetic storm

High-latitude sky watchers should be alert for auroras. A strong (Kp=7) geomagnetic storm is in progress. Earth's magnetic field has been strongly disturbed since approximately 1300 UT on Sept. 26th when a CME hit our planet. The impact strongly compressed the

September 26, 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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Spacecraft sees solar storm engulf Earth

For the first time, a spacecraft far from Earth has turned and watched a solar storm engulf our planet. The movie, released today during a NASA press conference, has galvanized solar physicists, who say it could lead to important advances in space weather forecasting.

August 19, 2011

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Another M-class solar flare

A second M-Class flare, this time a M2.5 took place at 03:54 UTC Tuesday morning around Sunspot 1263. This is in addition to the earlier M3.5 flare which we reported yesterday. The first flare produced a small, but fast moving (2010 km/s) Coronal Mass Ejection...

August 09, 2011

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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

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Space weather could wreak havoc in gadget-driven world

Advances in modern life have exposed humans to new weaknesses to space weather, which could disrupt communications, crash stock markets and cause months-long power outages, experts warned Saturday.Worst-case scenarios including scorched commercial satellites, GPS

February 21, 2011