Scientists discover structure within the Sun's atmosphere Engadget - July 20, 2018
By taking these advanced steps, the team was able to determine that the Sun's outer corona does indeed have a physical structure
Giant Waves Nearly Half a Million Miles Across Seen on the Sun for the First Time Live Science - May 22, 2018
Huge, slow-moving waves that drive Earth's weather and shape the swirls in Jupiter's atmosphere also exist on the sun, new research reveals. Called Rossby waves or planetary waves, the large-scale waves occur in all rotating fluids, but now they've been identified on the sun.
What will happen when our sun dies? Science Daily - May 7, 2018
Scientists agree the sun will die in approximately 10 billion years, but they weren't sure what would happen next... until now. A team of international astronomers predict it will turn into a massive ring of luminous, interstellar gas and dust, known as a planetary nebula. A planetary nebula marks the end of 90% of all stars active lives and traces the star's transition from a red giant to a degenerate white dwarf. But, for years, scientists weren't sure if the sun in our galaxy would follow the same fate: it was thought to have too low mass to create a visible planetary nebula.
Waves similar to those controlling weather on Earth have now been found on the Sun PhysOrg - May 7, 2018
A team of scientists has discovered new waves of vorticity on the Sun. These Rossby waves propagate in the direction opposite to rotation, have lifetimes of several months, and maximum amplitudes at the Sun's equator. For forty years scientists had speculated about the existence of such waves on the Sun, which should be present in every rotating fluid system. Now, they have been unambiguously detected and characterized for the first time. The solar Rossby waves are close relatives of the Rossby waves known to occur in the Earth's atmosphere and oceans.
The amazing moment the sun stamps out its own eruption: NASA footage captures magnetic forces as they shred dense solar material and cause it to collapse Daily Mail - August 13, 2017
Spectacular footage of what first appeared to be a solar eruption, but then turned out to be something else, has given scientists insight into the sun's magnetic landscape. On September 30, 2014, a suite of NASA instruments spotted what appeared to be a solar eruption - but soon after, a serpentine structure known as a filament rose from the surface and collapsed, being shredded to pieces by invisible magnetic forces. A study on the phenomenon revealed it was caused by a filament pushing up against a complex magnetic structure 'like two igloos smashed against each other,' which then ate away at the filament and caused chips of solar material to spray.
NASA watches the Sun put a stop to its own eruption PhysOrg - August 13, 2017
On Sept. 30, 2014, multiple NASA observatories watched what appeared to be the beginnings of a solar eruption. A filament - a serpentine structure consisting of dense solar material and often associated with solar eruptions - rose from the surface, gaining energy and speed as it soared. But instead of erupting from the Sun, the filament collapsed, shredded to pieces by invisible magnetic forces. Because scientists had so many instruments observing the event, they were able to track the entire event from beginning to end, and explain for the first time how the Sun's magnetic landscape terminated a solar eruption.
Sun experiences seasonal changes, new research finds PhysOrg - April 7, 2015
The Sun undergoes a type of seasonal variability with its activity waxing and waning over the course of nearly two years, according to a new study by a team of researchers led by the National Center for Atmospheric Research (NCAR). This behavior affects the peaks and valleys in the approximately 11-year solar cycle, sometimes amplifying and sometimes weakening the solar storms that can buffet Earth's atmosphere. The quasi-annual variations appear to be driven by changes in the bands of strong magnetic fields in each solar hemisphere. These bands also help shape the approximately 11-year solar cycle that is part of a longer cycle that lasts about 22 years.
Current Solar Activity - NOAA
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