The sun is 71% hydrogen, 27% helium and 2% other chemical elements.

The solar wind is a stream of ionized particles ejected from the Sun in all directions at a speed of about 400 km per second. The source of

The existence of iron meteorites indicates that the interior of individual asteroids was heated to the melting temperature, which made it possible to melt the primary substance into

Observations have shown that the sunspot is orange. What is the spot temperature? How many degrees does it differ from the temperature of the surrounding photosphere? The orange

Small meteors and meteorites burned up in the atmosphere and simply did not reach the Earth’s surface. But the atmosphere was not always there. There are a lot

Yes, on Mars, as on earth, the seasons change.

Elementary particles – neutrinos and positrons – are formed.

The energy released in the core is transported outward through radiation and convection.

The force of the Sun’s own gravity is directed inward, and the force of gas pressure is directed outward. These forces are in balance.

To observe solar neutrinos, a special neutrino telescope was built, which, over many years of observations, recorded the expected flux of neutrinos from the Sun. These observations finally