New research investigated the influence of extreme solar particle events on the Earth’s ozone layer and climate, concentrating on how these events interact with varying geomagnetic field strengths and providing crucial insights into possible hazards to human health and ecological stability.
New research published in Geophysical Research Letters reveals an unprecedented solar wind event observed by NASA’s Magnetospheric Multiscale (MMS) mission on April 24, 2023, when a massive coronal mass ejection (CME), with a low plasma beta of 0.01, caused Earth’s magnetosphere to lose its typical tail and form Alfvén wings. This event, lasting about two hours, provides new insights into space weather processes and the interaction between CME plasma and Earth’s magnetic field.
Johannes Kepler’s half-forgotten 1607 sunspot drawings were re-examined in a 2024 study and revealed previously hidden information about the solar cycles before the Maunder Minimum, a unique grand solar minimum in observational history. This study questions previous assumptions and improves on the historical chronology of solar cycles.
Researchers from the Massachusetts Institute of Technology (MIT) investigated the significant impacts and scientific insights from the May 2024 G5 – Extreme geomagnetic storm and how it impacted satellite operations and atmospheric activities.
A new study published in Nature Astronomy provides evidence that our solar system passed through a dense interstellar cloud 2 – 3 million years ago, exposing Earth to higher cosmic radiation and altering the climate. The discovery suggests that the Sun’s location in space might shape Earth’s history more than it was previously considered.
On April 23, 2024, a significant solar event occurred involving four simultaneous explosions on the Sun, characterized by the eruption of three sunspots and a magnetic filament. This unique activity spanned hundreds of thousands of kilometers and reached a combined X-ray output of M3.4, marking it as a notable instance of sympathetic solar flares.
A new study published in The Astrophysical Journal has provided a complete physical image of the anomalous heating in the upper atmosphere of the Sun, solving one of the eight challenges in modern astronomy.
A recent study by the University of Oulu, Finland, has revealed a significant connection between the aurora borealis, or Northern Lights, and variations in winter temperatures and electricity consumption in Finland, highlighting the role of energetic particle precipitation in affecting regional climate and energy demands.
In a groundbreaking study published in Nature Astronomy, researchers from the New Jersey Institute of Technology’s Center for Solar-Terrestrial Research (NJIT-CSTR) have documented an extraordinary aurora-like radio emission occurring approximately 40 000 km (25 000 miles) above a sunspot. This novel radio emission, which shows characteristics akin to the auroral emissions observed around planets like Earth, Jupiter, and Saturn, presents an unprecedented understanding of solar radio bursts and their potential link to similar phenomena in stars with large starspots.
A team of scientists from NorthWest Research Associates (NWRA) have made a breakthrough discovery in the study of solar flares, using data from NASA’s Solar Dynamics Observatory (SDO). The researchers found small signals in the upper layers of the solar atmosphere, known as the corona, that can indicate which regions on the Sun are more likely to produce solar flares.
