Articles tagged "solar research"

syowa station antarctic 2

New observations of coronal mass ejections and cosmic rays

Scientists have released new observations of solar activities, such as Coronal Mass Ejections (CMEs) and cosmic rays, gathered by the Global Muon Detector Network (GMDN) at the Syowa Station in the Antarctic. The team found that high-speed solar wind causes the...

June 20, 2021

sunspots

Scientists confirm existence of Alfven Waves, magnetic waves in the Sun's photosphere

Researchers have confirmed the presence of magnetic plasma waves in the Sun's photosphere, catching them in action. Known as Alfven Waves, these fascinating waves were first predicted in 1947. The Alfven Waves, named after Nobel Prize-winning scientist Hannes...

June 13, 2021

van allen probes conception andy kale

New project for more accurate space weather predictions

Professor Clare Watt, a space plasma physicist from Northumbria's Department of Mathematics, Physics and Electrical Engineering, is leading a new project that aims to forecast space weather more accurately. Funded by the Science and Technology Facilities Council...

May 25, 2021

coronal rain 2

Researchers propose new formation mechanism for solar coronal rain

Coronal rain is a phenomenon on the Sun that plays a key role in the mass cycle between the hot corona and cool chromosphere. In a new study, a team of researchers has proposed a new formation mechanism for coronal rain along open magnetic structures, showing that...

April 24, 2021

CME 2002 3

Researchers investigate what happens if 'perfect solar storm' hits Earth

In a new study published in Space Weather journal, researchers investigated what might happen if a 'perfect' coronal mass ejection (CME) hit the Earth. Using state‐of‐the‐art computer models to simulate the worst-case solar storm, the team found that...

January 28, 2021

solar activity over the past 1000 years ethz f

Researchers reconstruct 11-year solar cycles all the way back to year 969

An international team of researchers reconstructed the Sun's 11-year cycles all the way back to year 969 using measurements of radioactive carbon in tree rings. The findings help scientists better understand the dynamics of the Sun, enabling more accurate dating...

January 22, 2021

solar flare nasa aug 1 2020 2

New method helps predict big solar flares

Scientists developed a new physics-based technique that successfully predicted seven of the Sun's largest flares from the past solar cycle, out of a set of nine. With further improvement, the new model could be used to inform forecasters of these intense...

August 02, 2020

campfires new phenomena discovered on the sun f

New phenomena discovered on the Sun

A new Sun-observing mission led by ESA and NASA -- Solar Orbiter -- has returned its first images of the Sun, revealing previously unknown omnipresent miniature solar flares, dubbed 'campfires.' The campfires shown in the image below were captured by the...

July 16, 2020

solar flare 2 july 15 2020 3

Study finds correlation between solar activity and large earthquakes worldwide

A new study published in the Nature Scientific Reports on July 13 suggests that powerful eruptions on the Sun can trigger large earthquakes on Earth. In the paper, the authors analyzed 20 years of proton density and velocity data, as recorded by the SOHO satellite,...

July 16, 2020

solar flare july 2020

Scientists measure structure of enormous solar flare

Astronomers at the Harvard-Smithsonian Center for Astrophysics reported spatially-resolved observations of the regions of the Sun's magnetic field and flare-ejected electron activity, with the results suggesting that these kinds of spatial structures in the...

July 13, 2020

Sun june 26 2020 2

Motions in the Sun unveil inner workings of sunspot cycles

The Sun's magnetic activity fluctuates in a rhythm of about 11 years, which is reflected in the frequency of sunspots. During solar maximum, huge sunspots and active regions appear on the surface of the star. Scientists have long been puzzled over the reason...

June 28, 2020

solar flare nasa june 16 2020

Scientists develop new automatic method for detecting traces of Sun's coronal mass ejections

Scientists at the Skolkovo Institute of Science and Technology in Russia along with colleagues from the Karl-Franzens University of Graz and the Kanzelhoehe Observatory, Austria have formulated a new automatic method for tracking coronal dimmings or traces of...

June 21, 2020

solar wind hotter than expected april 15 2020

Study helps explain why solar wind is hotter than expected when it reaches Earth

In a new study, physicists from the University of Wisconsin-Madison help explain why the solar wind's temperature becomes 10 times larger than expected when it reaches the Earth. Previously, researchers thought the solar wind has to cool down very rapidly as it...

April 24, 2020

solar flare sdo earth

Evidence for an extreme solar proton event around 660 BC

An increasing amount of research indicates that solar storms can be even more powerful than measurements have shown so far via direct observations. Researchers believe that society is not sufficiently prepared if a similar event were to happen now. The researchers...

March 12, 2019

lightning solar activity

Study: How Sun influences lightning and thunder activity on Earth

Japanese researchers have taken the first steps to understand how the Sun's rotational cycle influences lightning activity on Earth. The answers were found in diaries dating back to the 1700s. "It is well known that long-term - centennial to...

July 18, 2018

mag_field_lines_nasa_sdo_jan72015_f

New tool could predict large solar storms more than 24 hours in advance

A new measurement and modelling tool/technique, developed by Dr Neel Savani of Imperial College London and NASA's Goddard Space Flight Center, could give more than 24 hours' notice of large magnetic storms from the Sun that could be harmful to systems on...

June 11, 2015

proton radiation

NASA investigates proton radiation effects on human cells

A team of researchers at NASA's Johnson Space Center in Houston and Lawrence Berkeley National Laboratory in Berkeley, Calif., has found radiation from protons could further enhance a process that occurs during tumor progression. This information may help lead...

August 05, 2012