Can you imagine the speed of 2,000 kilometers per second?
Such is the average speed at which the stellar wind "blows," forming a magnificent corona around the star. But beauty, as we know, requires sacrifice: the stronger the wind and the more attractive the crown, the faster the star fades. Until it disappears altogether.
The fact is that, physically, the stellar wind is the ejection of a star's matter into the surrounding space. Hot stars lose mass relatively quickly and live 1-10 million years. Cooler stars lose a minimum of mass to the stellar wind, and this loss has almost no effect on their evolution.
Such is the average speed at which the stellar wind "blows," forming a magnificent corona around the star. But beauty, as we know, requires sacrifice: the stronger the wind and the more attractive the crown, the faster the star fades. Until it disappears altogether.
The fact is that, physically, the stellar wind is the ejection of a star's matter into the surrounding space. Hot stars lose mass relatively quickly and live 1-10 million years. Cooler stars lose a minimum of mass to the stellar wind, and this loss has almost no effect on their evolution.
How Many Constellations are There in the Sky?
The Egyptians had their own, highly complex system of the starry sky and about 55 constellations. Ancient Chinese astronomy was also original and distinguished 51 constellations.
The European system is based on the ancient Greek system, but has undergone lots of changes over the centuries. The fact that the official list of constellations was approved only in 1922, and until then, astronomers imagined as they could, and what not to place in the poor sky.
Nowadays, 88 constellations are officially recognized.
The Egyptians had their own, highly complex system of the starry sky and about 55 constellations. Ancient Chinese astronomy was also original and distinguished 51 constellations.
The European system is based on the ancient Greek system, but has undergone lots of changes over the centuries. The fact that the official list of constellations was approved only in 1922, and until then, astronomers imagined as they could, and what not to place in the poor sky.
Nowadays, 88 constellations are officially recognized.
Imagine a hurricane bigger than the Earth, raging for hundreds of years
The wind speed in the bowels of this storm exceeds 500 km/h and the temperature is about -160 Β°C! This storm (Big Red Spot) occupies only a small part of the surface of the gas giant Jupiter.
There is no solid surface under these clouds like on Earth: the lower layer of the atmosphere smoothly passes into an ocean of metallic hydrogen. According to scientists, the size of Jupiter's core is hardly larger than Earth.
Since 2016, the Juno spacecraft revolves around Jupiter, with the help of which scientists can "look" under the upper layers of the planet's clouds. Thus, it was discovered that the Big Red Spot is 320 km deep.
The wind speed in the bowels of this storm exceeds 500 km/h and the temperature is about -160 Β°C! This storm (Big Red Spot) occupies only a small part of the surface of the gas giant Jupiter.
There is no solid surface under these clouds like on Earth: the lower layer of the atmosphere smoothly passes into an ocean of metallic hydrogen. According to scientists, the size of Jupiter's core is hardly larger than Earth.
Since 2016, the Juno spacecraft revolves around Jupiter, with the help of which scientists can "look" under the upper layers of the planet's clouds. Thus, it was discovered that the Big Red Spot is 320 km deep.
Young Mars featured a dense atmosphere and water resources
Yet, over the past billions of years, the Red Planet has lost much of both its gas envelope and its hydrosphere.
Nevertheless, Mars has still managed to retain some water in the form of subsurface ice deposits. Data collected by spacecraft suggest that they are much more widespread than previously thought.
According to some estimates, up to one-third of the planet contains hidden deposits of water ice βοΈ
Yet, over the past billions of years, the Red Planet has lost much of both its gas envelope and its hydrosphere.
Nevertheless, Mars has still managed to retain some water in the form of subsurface ice deposits. Data collected by spacecraft suggest that they are much more widespread than previously thought.
According to some estimates, up to one-third of the planet contains hidden deposits of water ice βοΈ
The world is one step away from creating an artificial Sun
Scientists, with the help of 192 lasers, sharply compressed a tablet of deuterium and tritium to the thickness of a human hair, which allowed the temperature to reach 3 million degrees.
Also, they were able to start fusion and release 1.3 megajoules of energy. That is 70% of the cost.
The next step is to achieve 100% efficiency, after which we can move on to energy extraction.βοΈ
Scientists, with the help of 192 lasers, sharply compressed a tablet of deuterium and tritium to the thickness of a human hair, which allowed the temperature to reach 3 million degrees.
Also, they were able to start fusion and release 1.3 megajoules of energy. That is 70% of the cost.
The next step is to achieve 100% efficiency, after which we can move on to energy extraction.βοΈ
This media is not supported in your browser
VIEW IN TELEGRAM
The San Andreas Fault in the Earth's crust
It runs along the coast of California and is 1,300 kilometers long. It also separates the Pacific and North American tectonic plates.
The San Andreas and adjacent Hayward and Calaveras faults are the source of major earthquakes.
It runs along the coast of California and is 1,300 kilometers long. It also separates the Pacific and North American tectonic plates.
The San Andreas and adjacent Hayward and Calaveras faults are the source of major earthquakes.
This media is not supported in your browser
VIEW IN TELEGRAM
NASA considers the idea of sinking the ISS in January 2031
β
According to the space agency's calculations based on budget estimates, the station's operation would last until 2030. And then it should be removed from orbit and sent to the "Graveyard of Spaceships" in the South Pacific.
β
According to the space agency's calculations based on budget estimates, the station's operation would last until 2030. And then it should be removed from orbit and sent to the "Graveyard of Spaceships" in the South Pacific.
This media is not supported in your browser
VIEW IN TELEGRAM
Lots of people imagine black holes simply as a massive object
Black holes are more than large objects that absorb everything around them.
They are also some of the largest in the universe and the most stable sources of energy.
Black holes are more than large objects that absorb everything around them.
They are also some of the largest in the universe and the most stable sources of energy.
Neptune is the eighth and farthest planet from the Sun by far
It was discovered by mathematical calculations. Only once has a spacecraft visited the orbit of this distant icy giant - it was Voyager 2 in 1989.
π΅ Neptune's atmosphere is mostly hydrogen and helium, as well as hydrocarbons, nitrogen and methane, which is the cause of the planet's blue color.
It was discovered by mathematical calculations. Only once has a spacecraft visited the orbit of this distant icy giant - it was Voyager 2 in 1989.
π΅ Neptune's atmosphere is mostly hydrogen and helium, as well as hydrocarbons, nitrogen and methane, which is the cause of the planet's blue color.
The Erlanger crater near the Moon's northern pole
The ten-kilometer crater Erlanger is one of the craters of perpetual darkness - sunlight only illuminates the upper edges, while the bottom of the crater is constantly in shadow. Water ice has been found in some craters of this type.
πSimilar ones can be found on Mercury and Ceres.
The ten-kilometer crater Erlanger is one of the craters of perpetual darkness - sunlight only illuminates the upper edges, while the bottom of the crater is constantly in shadow. Water ice has been found in some craters of this type.
πSimilar ones can be found on Mercury and Ceres.
Earth-type tectonic plates discovered on Titan
Titan disposes of a thick crust of solid water ice and represents the only place other than Earth on whose surface there are lakes and seas filled with liquid. True, the liquid on Titan is represented by methane and ethane.
Researchers believe that movement along faults on the surface is caused by diurnal tidal stresses resulting from the satellite's movement relative to its parent planet.
Titan disposes of a thick crust of solid water ice and represents the only place other than Earth on whose surface there are lakes and seas filled with liquid. True, the liquid on Titan is represented by methane and ethane.
Researchers believe that movement along faults on the surface is caused by diurnal tidal stresses resulting from the satellite's movement relative to its parent planet.
This media is not supported in your browser
VIEW IN TELEGRAM
Every second, the Sun loses more than a million tons of matter
The reason for this is the flow of ionized particles, which is called the "solar windβ.
β
Initially ionized particles of helium, hydrogen, iron, silicon, sulfur and several other chemical elements move, with a speed of 300-450 km/sec.
The speed of the solar wind stream further increases, reaching 400 to 800 km/sec near Earth. 1,500,000 km/h (420 km/sec) near Mars.
The reason for this is the flow of ionized particles, which is called the "solar windβ.
β
Initially ionized particles of helium, hydrogen, iron, silicon, sulfur and several other chemical elements move, with a speed of 300-450 km/sec.
The speed of the solar wind stream further increases, reaching 400 to 800 km/sec near Earth. 1,500,000 km/h (420 km/sec) near Mars.
Everyoneβs aware about Black holes, but few people suspect thereβs a hypothesis about White holes
Following from the name, White holes are the opposite of black holes. If black holes as if "suck" all surrounding space into themselves, white holes "spit it out".
White holes are unstable. In the process of formation of matter in them the gravitational forces grow and at some point collapse the object, turning it into a black hole.
It is possible that all the white holes formed immediately after the Big Bang are now literally dead, so we do not see them.
Following from the name, White holes are the opposite of black holes. If black holes as if "suck" all surrounding space into themselves, white holes "spit it out".
White holes are unstable. In the process of formation of matter in them the gravitational forces grow and at some point collapse the object, turning it into a black hole.
It is possible that all the white holes formed immediately after the Big Bang are now literally dead, so we do not see them.
This media is not supported in your browser
VIEW IN TELEGRAM
This animation of the moving moons Io and Europa against the background of Jupiter was created using images taken by the Cassini spacecraft.
The scale is impressiveπ―
The scale is impressiveπ―
The year 2024 is the year of cryptoπ Many coins are set to rocket by 20-100x from their current value. This is not an opportunity to be missed!
On his channel, Harry shares life hacks for smart investing and selecting the top-tier projects during the bull runπ₯π₯Everyone can build significant capital, even if you're a beginner
Join my friend's channel to stay on top of the trends and not miss out on profitable projects:
https://t.me/+8ofw57tFGDU5NjVk
On his channel, Harry shares life hacks for smart investing and selecting the top-tier projects during the bull runπ₯π₯Everyone can build significant capital, even if you're a beginner
Join my friend's channel to stay on top of the trends and not miss out on profitable projects:
https://t.me/+8ofw57tFGDU5NjVk