Science 101 tells us that the twinkling appearance of stars from our vantage point on Earth is due to atmospheric effects: winds and varying temperatures and densities in the air bend and distort the ...

Our Sun has been burning brightly for currently about 4.5 billion years and will continue to do so for another 7 billion years or so. A photon from the surface of the Sun takes about 8 minutes and 20 ...

The sun has long intrigued scientists. However, this sphere of super-heated plasma—the closest star to Earth—is also notoriously difficult to study, leaving many unanswered questions. Now, researchers ...

The sun's convection zone plays a key role in the generation and evolution of the Sun's magnetic field. Analyzing data sets spanning more than 20 years, researchers have obtained the most ...

Last time, I talked about how the Sun, the source of practically all life on our planet, was pretty slack with its nuclear burning. It did so little of it, that (volume for volume) it put out about as ...

Scientists have advanced in their quest to create an accurate model of the sun's inner workings, which could pave the way to a better understanding of our solar system. Accurate solar models might ...

In their interiors, stars are structured in a layered, onion-like fashion. In those with solar-like temperatures, the core is followed by the radiation zone. There, the heat from within is led ...

Massive, long-lasting plasma flows 15 times the diameter of Earth transport heat from the sun’s depths to its surface, according to a study in the Dec. 6 Science. The finding supports a decades-old ...

“What appliance can pierce through the outer layers of a star and test conditions within?” asked Arthur Eddington in his book The Internal Constitution of the Stars (Cambridge University Press, 1926).

Different stars can exhibit different levels of activity. The Sun's signs of solar activity are rather feeble on an astronomical scale. Other stars are up to ten times more active. While researchers ...