Outer Space 🚀

Why does Saturn have a ring system? Probably the reason for the formation of the rings is several consecutive absorptions by Saturn of its satellites. Calculations show that after Saturn was formed, several large satellites orbited close to Saturn. Gradually, due to gravitational effects, these satellites one after another "fell" into the bowels of Saturn. In the process of descending from their orbits and entering the spiral trajectory, the satellites were destroyed. At the same time, the light ice component remained in space, while the heavy mineral components of the celestial bodies were attracted by the planet.

Can human blood boil in outer space? Any liquid has a direct relationship to ambient pressure. The higher the pressure, the higher the boiling point, and vice versa. 📌 The problem is that while a liquid boil in space, blood will not. Fluids like saliva in the mouth will boil. However, blood, unlike saliva, is in a closed system, and your veins will hold it under pressure in a liquid state. Even if you are in a complete vacuum, the fact that the blood is closed in the system means that it won't turn into gas and escape.

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.

What are Saturn's rings made of? The size of particles in Saturn's rings is from micrometers to centimeters. The composition of the main rings: water ice (about 99%) with admixtures of silicate dust. The thickness of the rings is extremely small compared to their width (from 7 to 80 thousand kilometers above Saturn's equator) and ranges from one kilometer to ten meters. The total mass of debris material in the ring system is estimated at 3 × 1019 kilograms.