Is a sun a star or a planet? Current definitions define a star as a body that generates its own energy. While humans have relied on the sun for hundreds of thousands of years, it's only in the last ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

I love simple questions that wind up having complicated—or at least not straightforward—answers. Astronomers twist themselves into knots, for example, trying to define what a planet is, even though it ...

The Sun, a star similar to others but uniquely close, is significantly larger than Earth (1.3 million Earths could fit inside) and possesses 99.86% of the solar system's mass. The Sun's physical ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

The ALMA telescope in Chile observed bubbles on the surface of a star other than the sun. Credit: ALMA / ESO / NAOJ / NRAO / W. Vlemmings et al. Like an enormous lava lamp, the sun roils with hot ...

"With ALMA, we can now see the atmosphere of a dying star with a level of clarity in a similar way to what we do for the sun.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. After spending the last six months in the evening sky for ...

The recent flurry of solar storms suggests the sun is in a period of maximal activity as part of its 11-year cycle. The active period is likely to continue over the next year, so more auroras could be ...

"We have been dreaming of this moment for over 16 years." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. There's this running debate among ...