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.
A physics-based method for predicting imminent large solar flares
Predicting large solar flares through a critical condition of magnetohydrodynamic instability.
First-ever image of a young, Sun-like star accompanied by two giant exoplanets
The observations can help astronomers understand how planets formed and evolved around our own Sun.
Scientists identified 19 asteroids of interstellar origin
Understanding the star nursery from which the Sun emerged.
ESA/NASA’s Solar Orbiter snaps closest picture of the Sun
No other images of the Sun have been taken from such a close distance.
NASA’s Parker Solar Probe captured a unique view of comet NEOWISE
NASA’s Parker Solar Probe spies newly-discovered comet NEOWISE.
NASA just released epic 10-year timelapse of Sun
NASA has released a 10-year timelapse of the Sun that is prepared by using data from the Solar Dynamics Observatory (SDO).
The Solar Dynamics Observatory...
Shedding new light on solar flares
Solar flares are an explosion of energy caused by tangling, crossing, or reorganizing of magnetic field lines near sunspots. In extreme cases, solar flares...
Astronomers measured the shape of the magnetic field of the solar corona
The Sun's corona is the outermost part of the Sun's atmosphere. And he stream of energized, charged particles, primarily electrons, and protons, flowing outward...
Giant spots discovered on the surface of extremely hot stars
Astronomers using European Southern Observatory (ESO) telescopes have discovered giant spots on the surface of extremely hot stars hidden in stellar clusters. Not only...
NASA’s Parker Solar Probe began its longest observation campaign to date
On May 9, 2020, Parker Solar Probe started its longest science observation campaign. The probe activated its at a distance of 62.5 million miles...
Astronomers identified a rhythm among pulsating stars
By listening to the heartbeat of the stars, astronomers for the first time detected a rhythm of life for a class of stellar objects...