Geomagnetic Storms

Geomagnetic Storms News -- ScienceDaily Latest research news on geomagnetic storms and solar flares including risks to electrical grids, astronauts, satellites and more.

  • New magnetic process in turbulent space
    on May 9, 2018 at 5:54 pm

    Explorations in Earth's space environment by NASA's Magnetospheric Multiscale spacecraft have discovered a surprising new magnetic event in turbulent plasma. […]

  • Earth's magnetic field is not about to reverse
    on April 30, 2018 at 8:04 pm

    A study of the most recent near-reversals of the Earth's magnetic field by an international team of researchers has found it is unlikely that such an event will take place anytime soon. […]

  • New 3-D measurements improve understanding of geomagnetic storm hazards
    on March 8, 2018 at 6:33 pm

    Measurements of the three-dimensional structure of Earth, as opposed to the one-dimensional models typically used, can help scientists more accurately determine which areas of the United States are most vulnerable to blackouts during hazardous geomagnetic storms. […]

  • Towards a better prediction of solar eruptions
    on February 7, 2018 at 7:03 pm

    Just one phenomenon may underlie all solar eruptions. Researchers have identified the presence of a confining 'cage' in which a magnetic rope forms, causing solar eruptions. It is the resistance of this cage to the attack of the rope that determines the power and type of the upcoming flare. This work has enabled the scientists to develop a model capable of predicting the maximum energy that can be released during a solar flare. […]

  • Reduced energy from the sun might occur by mid-century: Now scientists know by how much
    on February 6, 2018 at 3:58 pm

    The Sun might emit less radiation by mid-century, giving planet Earth a chance to warm a bit more slowly but not halt the trend of human-induced climate change. […]

  • Special star is a Rosetta Stone for understanding the sun's variability and climate effect
    on January 5, 2018 at 5:40 pm

    Scientists have found a star that can help shed light on the physics underlying the solar dynamo. Researchers combined observations from the Kepler spacecraft with ground-based observations as far back as 1978, thereby reconstructing a 7.4-year cycle in this star. The star is almost identical to the Sun, except for the chemical composition. That makes it a Rosetta Stone for the study of stellar dynamos. […]

  • Extreme magnetic storm: Red aurora over Kyoto in 1770
    on October 3, 2017 at 3:10 pm

    Researchers used historic accounts of a rare red aurora over Kyoto, Japan, in the 18th century to support calculations of the strength of the associated magnetic storm. The September 1770 storm could be 3-10% stronger than the September 1859 storm, the greatest storm in the past 200 years. The research provides insights that could assist preparation for an unlikely, but possible, future intense magnetic storm. […]

  • Solar observer created key sunspot record
    on October 2, 2017 at 6:49 pm

    Few people have heard of Hisako Koyama, but the dedicated female solar observer, born in Tokyo in 1916, created one of the most important sunspot records of the past 400 years. […]

  • Spoiler alert: Computer simulations provide preview of upcoming eclipse
    on August 18, 2017 at 1:21 pm

    Scientists have forecast the corona of the sun during the upcoming eclipse. The findings shed light on what the eclipse of the sun might look like Aug. 21 when it will be visible across much of the US, tracing a 70-mile-wide band across 14 states. […]

  • Day to night and back again: Earth's ionosphere during the total solar eclipse
    on August 10, 2017 at 6:57 pm

    Three NASA-funded studies will use the Aug. 21 total solar eclipse as a ready-made experiment, courtesy of nature, to improve our understanding of the ionosphere and its relationship to the Sun. […]

  • Solving the mystery of the sun's hot atmosphere
    on August 3, 2017 at 1:19 pm

    The elemental composition of the Sun's hot atmosphere known as the 'corona' is strongly linked to the 11-year solar magnetic activity cycle, a team of scientists has revealed for the first time. […]

  • Improved representation of solar variability in climate models
    on July 3, 2017 at 4:10 pm

    For upcoming climate model studies, scientists can use a new, significantly improved data set for solar forcing. Scientists have now published the details of the new reconstruction of this reference dataset. A significantly enhanced influence of solar cycle effects is expected, particularly in the stratosphere. […]

  • First direct exploration of magnetic fields in the upper solar atmosphere
    on May 18, 2017 at 2:41 pm

    Scientists have explored the magnetic field in upper solar atmosphere by observing the polarization of ultraviolet light with the CLASP sounding rocket experiment during its 5-minute flight in space on Sept. 3, 2015. The data show that the structures of the solar chromosphere and transition region are more complicated than expected. It is proven that ultraviolet spectropolarimetry can be used in future investigations of the magnetic fields in upper solar chromosphere and transition region. […]

  • Space weather events linked to human activity
    on May 17, 2017 at 3:16 pm

    Human activities, like nuclear tests and radio transmissions, have been changing near-Earth space and weather, and have created artificial radiation belts, damaged satellites and induced auroras. […]

  • Key differences in solar wind models
    on May 15, 2017 at 4:59 pm

    The challenge of predicting space weather, which can cause issues with telecommunications and other satellite operations on Earth, requires a detailed understanding of the solar wind (a stream of charged particles released from the sun) and sophisticated computer simulations. New research has found that when choosing the right model to describe the solar wind, using the one that takes longer to calculate does not make it the most accurate. […]

  • Planetary waves, first found on Earth, are discovered on sun
    on March 27, 2017 at 3:44 pm

    The same kind of large-scale planetary waves that meander through the atmosphere high above Earth's surface may also exist on the sun, according to a new study. […]

  • New data from NOAA GOES-16's Space Environment In-Situ Suite (SEISS) instrument
    on February 13, 2017 at 1:37 pm

    The new Space Environment In-Situ Suite (SEISS) instrument onboard NOAA's GOES-16 is working and successfully sending data back to Earth. […]

  • What happened to the sun over 7,000 years ago?
    on February 7, 2017 at 2:27 pm

    By analyzing the level of a carbon isotope in tree rings from a specimen of an ancient bristlecone pine, researchers have revealed that the sun exhibited a unique pattern of activity in 5480 BC. By comparing this event with other similar but more recent phenomena, they reported that this event may have involved a change in the sun's magnetic activity, or a number of successive solar burst emissions. […]

  • First-ever GPS data release to boost space-weather science
    on January 30, 2017 at 4:10 pm

    Today, more than 16 years of space-weather data is publicly available for the first time in history. The data comes from space-weather sensors. […]

  • Extreme space weather-induced blackouts could cost US more than $40 billion daily
    on January 18, 2017 at 3:38 pm

    The daily US economic cost from solar storm-induced electricity blackouts could be in the tens of billions of dollars, with more than half the loss from indirect costs outside the blackout zone, according to a new study. […]

  • Revolutions in understanding the ionosphere, Earth's interface to space
    on December 14, 2016 at 8:16 pm

    Far above Earth's surface is a sea of particles that have been split into positive and negative ions by the suns harsh ultraviolet radiation called the ionosphere -- this is Earth's interface to space. […]

  • Researchers dial in to 'thermostat' in Earth's upper atmosphere
    on December 14, 2016 at 8:15 pm

    A team has found the mechanism behind the sudden onset of a 'natural thermostat' in Earth's upper atmosphere that dramatically cools the air after it has been heated by violent solar activity. […]

  • New technology aims to make photovoltaic cells 70% more efficient
    on November 15, 2016 at 6:25 pm

    A technology has been developed that could improve the efficiency of photovoltaic cells by nearly 70 percent. The breakthrough could be a key for harnessing the power of the sun to meet the world’s energy consumption demands. […]

  • Crack discovered in Earth's magnetic shield
    on November 3, 2016 at 4:59 pm

    The GRAPES-3 muon telescope recorded a burst of galactic cosmic rays of about 20 GeV, on 22 June 2015 lasting for two hours. The burst occurred when a giant cloud of plasma ejected from the solar corona, and moving with a speed of about 2.5 million kilometers per hour struck our planet, causing a severe compression of Earth's magnetosphere from 11 to 4 times the radius of Earth. It triggered a severe geomagnetic storm that generated aurora borealis, and radio signal blackouts in many high latitude countries. […]

  • A perfect sun-storm
    on September 28, 2016 at 12:29 pm

    A geomagnetic storm on January 17, 2013, provided unique observations that finally resolved a long-standing scientific problem. For decades, scientists had asked how particles hitting Earth's magnetosphere were lost. A likely mechanism involved certain electromagnetic waves scattering particles into the Earth's atmosphere. More recently, another mechanism was proposed that caused particles to be lost in interplanetary space. Scientists recently found that both mechanisms play a role affecting particles at different speeds. […]

  • NASA's THEMIS sees Auroras move to the rhythm of Earth's magnetic field
    on September 12, 2016 at 6:19 pm

    For the first time, scientists have directly mapped Earth's fluctuating magnetic field and resulting electrical currents to aurora, thanks to northern lights observations from NASA's THEMIS mission. […]

  • Van Allen probes catch rare glimpse of supercharged radiation belt
    on August 15, 2016 at 10:58 pm

    An interplanetary shock struck the outermost of Earth's Van Allen radiation belts on March 17, 2015, resulting in the greatest geomagnetic storm of the past 10 years. […]

  • Getting to know more about sun storms
    on August 10, 2016 at 12:58 pm

    A violent solar eruption can disrupt Earth’s magnetic field, which in turn can interfere with power grids. Electrical power sector experts around the world are making contingency plans. […]

  • 1967 solar storm nearly took US to brink of war
    on August 9, 2016 at 6:51 pm

    A solar storm that jammed radar and radio communications at the height of the Cold War could have led to a disastrous military conflict if not for the US Air Force's budding efforts to monitor the sun's activity, a new study finds. […]

  • Tracking solar eruptions in 3D
    on June 29, 2016 at 2:03 pm

    Scientists have developed an automated method for three-dimensional tracking of massive eruptions from the Sun, called Coronal Mass Ejections (CMEs). The Automated CME Triangulation (ACT) system uses data from three space-based observatories that orbit the Sun at different locations, allowing scientists to view the Sun and CMEs from different angles. ACT's ability to track whether a CME is heading towards Earth, and when it is likely to reach us, should lead to significant improvements in space weather forecasting. […]