Sun
The Sun is the star located at the solar system’s center. Its gravity holds the solar system as a whole together. It accounts for about 99.86% of the total solar system’s mass.
Hydrogen is about 73% of the Sun’s total mass; the rest is mostly Helium (25%), with a small quantity of oxygen, carbon, neon, and iron. The hottest part of the Sun is its core, where temperatures top 27 million degrees Fahrenheit (15 million degrees Celsius).
The core is the place where it generates enormous amounts of energy through the nuclear fusion reaction. It mainly radiates energy through visible light, ultraviolet, and infrared radiation.
Auroras exist beyond 30,000 kilometers above the Earth’s surface
The aurora's very high altitude booster.
Scientists located the source of hazardous high-energy particles in the sun
The study also confirms that the plasma is held down in the Sun's atmosphere by strong magnetic fields.
NASA’s Parker Solar Probe captured stunning views of Venus
A striking image of the planet’s nightside from 7,693 miles away.
A faint object discovered in 2018 is indeed the most distant object
Gemini North helps define remote object’s distance and orbit.
Magnetic waves explain the mystery of the Sun’s corona
This discovery generated what is one of the long-standing open questions in astrophysics.
A new view of small sun structures
New insight into the solar structures that create the Sun’s flow of high-speed solar wind.
Astronomers created a 3D map of cool brown dwarfs in the Sun’s neighborhood
Mapping our sun’s backyard.
The secret of working sunquakes might be hidden beneath the solar surface
Secrets behind sunquakes could lurk beneath the Sun's corona.
Korean artificial sun sets the new world record
It demonstrated the unique capability of the superconducting KSTAR device.
Scientists have captured the full lifecycle of a putative nanoflare
This may be the first complete observation of a Nanoflare.
A comet discovered during 2020 Total Solar Eclipse
As Chile and Argentina witnessed the total solar eclipse on Dec. 14, 2020, unbeknownst to skywatchers, a little tiny speck was flying past the Sun.
Solar orbiter gives new insights into solar ‘campfires’
Solar Orbiter: Turning pictures into physics.