Телеграм канал «Outer Space 🚀»

Hoag's Object This is a galaxy that is a nearly perfect ring of hot blue stars around a yellow core. The entire galaxy is about 120,000 light-years wide, slightly larger than the Milky Way. The blue ring, in which most of it is devoted to clusters of young, large stars, creates a sharp contrast with the yellow core.

Quasars emit 100 times more energy than the sum of all the luminaries in our galaxy Initially, it was assumed that all pseudostars are powerful sources of radio emission. But by 2004 it became known that there are very few of them, about 10%, while the rest are considered to be radio-quiet.

The quest is called "find Saturn"😉 On April 1, 2022, a rare astronomical phenomenon could be observed early in the morning on the east coast of the United States: Saturn's passage across the Sun's disk.

Tears never flow in zero gravity💦 Nothing pulls them down your cheek and chin. If they are not removed, it will just be a gradually growing bubble of brackish water. This bubble will be held on the eye and skin by surface tension.

How might extraterrestrial civilizations see Earth? To find out exactly what an outsider might see, scientists used about 10,000 images of our planet taken by NASA's DSCOVR satellite. Then they scaled down several times to simulate the distance of several light years. On the resulting image, they highlighted the parameters that most characterize the most prominent parts of the Earth. As a result, the image produced a two-dimensional map of the Earth's surface, reconstructed from light curve readings without any assumptions about its spectral properties.

Where does the color of the Northern Lights come from? The color of the aurora borealis is formed when solar wind particles hit the molecules of our air. ✔️The air is composed of nitrogen and oxygen. These molecules are excited and then instantly release the energy of the excitation in the form of radiation of a strictly defined wavelength. If to look at the spectrum of the aurora borealis, you will see that the brightest bands in the visible part of the spectrum are green and red (both belong to oxygen). The red glow is formed at altitudes above 200 km, where the density of gas is lower. And the green glow is formed closer to an altitude of 100 km, where the density of the gas is higher.

Astronauts eat not only from tubes Contrary to popular misconception, it is possible to eat fruit, berries and cakes in natural form in orbit. The official menu for astronauts consists of 250 items, and if a cargo ship goes to the ISS, they can order something fresh. Conventional salt and pepper are not available for astronauts: if they salt or pepper a dish in zero gravity, the spices will fly around and get in their eyes. Therefore, liquid salt solution and condiments are used - mustard and ketchup are especially popular.