New project investigates mysteries of Sun's atmosphere
The sun's activity has a profound impact on satellites, humans in space and technology on Earth.
Astrobiology
May 7, 2025
0
42
Page 5: Research news on Solar activity
Solar activity as a research area focuses on the study of time-varying phenomena originating from the Sun’s magnetic field, including sunspots, flares, coronal mass ejections, solar wind variability, and associated irradiance changes. It integrates solar physics, plasma astrophysics, and space weather science to understand magnetic field generation via the solar dynamo, energy storage and release in the corona, and particle acceleration processes. This field employs multi-wavelength observations, in situ spacecraft measurements, and magnetohydrodynamic modeling to quantify solar variability and its coupling to the heliosphere, planetary magnetospheres, and upper atmospheres, with implications for technological systems and long-term space climate.
Researchers uncover origin of counterstreaming flows in solar prominences
A recent study has shed new light on the dynamic evolution of solar prominences. By integrating high-resolution observational data from the one-meter New Vacuum Solar Telescope (NVST) with spectral observations from NASA's ...
Astronomy
Mar 18, 2025
0
23
New model predicts solar storm particle acceleration and escape
The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric temperatures ranging from 10,000 to 3.6 million degrees Fahrenheit on its surface and its atmosphere's outermost ...
Planetary Sciences
Jan 18, 2025
0
109
Researchers introduce new 'filament channel' function to predict solar eruptions triggered by emerging flux
A study published in The Astrophysical Journal Letters, introduces a newly defined "filament channel" function. This new function provides a novel theoretical foundation for predicting solar eruptions by determining whether ...
Astronomy
Jan 7, 2025
0
25
Observations suggest sun-like stars emit superflares once per century
There is no question that the sun is a temperamental star, as this year's unusually strong solar storms show. Some of them led to remarkable auroras even at low latitudes. But can our star become even more furious?
Astronomy
Dec 12, 2024
1
76
Northern lights may be faintly visible across parts of the US this Thanksgiving
This Thanksgiving, solar storms may produce faint auroras across the northern rim of the United States.
Space Exploration
Nov 27, 2024
0
115
Scientists construct first complete energy spectrum of solar high-energy protons in Martian space
Scientists have constructed the first complete proton energy spectrum observed during an eruptive solar event in Martian space, deepening our understanding of the radiation environment around Mars.
Astronomy
Nov 22, 2024
0
76
Video: Our sun is the star in a new simulation
NASA supercomputers are shedding light on what causes some of the sun's most complex behaviors. Using data from the suite of active sun-watching spacecraft currently observing the star at the heart of our solar system, researchers ...
Astronomy
Nov 21, 2024
0
36
Sunspots and solar flares, created by the sun's magnetism, can affect the Earth's surface
Since ancient times, the sun has been known as a giver of light and heat, a source of life. Plants are coaxed from the Earth by its rays, bringing spring, followed by bountiful harvests.
Planetary Sciences
Nov 14, 2024
0
26
Right now, the sun is far more active than predicted—and small satellites are paying the price
Last week, three tiny Australian satellites from Curtin University's Binar Space Program burned up in Earth's atmosphere. That was always going to happen. In fact, Binar means "fireball" in the Noongar language of the First ...
Planetary Sciences
Nov 12, 2024
0
40
