The Trifid Nebula is absolutely unique: it consists of three main types of nebulae: emission (pink), reflection (blue), and absorption (black). Within this cradle are countless "embryos" of stars.
Our solar system most likely originated from a similar object.
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Our solar system most likely originated from a similar object.
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Exoplanet volcanoes
Usually such planets are larger than Earth, but they are located much closer to the parent star - even closer than, for example, Mercury to the Sun.
The temperature on a volcano planet can reach 725 C - at this temperature, the planet's surface is, in fact, an ocean of hot lava.
It is assumed that the volcanic planets were formed at a considerable distance from their star, and then spiraling gradually into the orbit in which they are now. But according to recent hypotheses, volcanic planets are formed from a stream of small objects that spiral in the direction of the star from the outer boundaries of the system.
As a result of such continuous movement around the star, a ring is formed, from which ultimately the volcano planet is formed.
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Usually such planets are larger than Earth, but they are located much closer to the parent star - even closer than, for example, Mercury to the Sun.
The temperature on a volcano planet can reach 725 C - at this temperature, the planet's surface is, in fact, an ocean of hot lava.
It is assumed that the volcanic planets were formed at a considerable distance from their star, and then spiraling gradually into the orbit in which they are now. But according to recent hypotheses, volcanic planets are formed from a stream of small objects that spiral in the direction of the star from the outer boundaries of the system.
As a result of such continuous movement around the star, a ring is formed, from which ultimately the volcano planet is formed.
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Dr. George Carruthers (right) and William Conway examine the gilded ultraviolet camera / spectrograph, the first lunar observatory Carruthers designed for the Apollo 16 mission.
The Apollo 16 astronauts set up an observatory on the moon in April 1972.
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The Apollo 16 astronauts set up an observatory on the moon in April 1972.
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Over the past 50 years, humanity has launched about 6,600 satellites. Some of them were military, so toxic fuels and nuclear reactors over our heads are not uncommon. A thousand satellites are still working. About two thousand were destroyed in one way or another. The rest continue to dangle, collide.
Around the planet are now revolving: about 29 thousand debris more than 10 cm, about 670 thousand debris from 1 to 10 cm and, finally, more than 170 million debris from 1 mm to 1 cm.The total mass is 7000 tons, and the flight speed reaches 56 thousand km / h
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Around the planet are now revolving: about 29 thousand debris more than 10 cm, about 670 thousand debris from 1 to 10 cm and, finally, more than 170 million debris from 1 mm to 1 cm.The total mass is 7000 tons, and the flight speed reaches 56 thousand km / h
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Massive stars spend their short lives burning nuclear fuel violently. In fusion reactions taking place at extreme temperatures and pressures in the cores of stars, heavier elements such as hydrogen and helium are formed from the nuclei of light elements - carbon, oxygen, and so on, in a sequence that ends in iron.
A supernova explosion - the inevitable and spectacular demise of a massive star - throws matter enriched with heavy elements into space, from which new stars, planets and people are formed!
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A supernova explosion - the inevitable and spectacular demise of a massive star - throws matter enriched with heavy elements into space, from which new stars, planets and people are formed!
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Exoplanet Janssen
Exoplanet 55 Cancer e. (Janssen) - located in the planetary system of the sun-like star 55 Cancer A in the binary system 55 Cancer (HD 75732).
The exoplanet revolves around a sun-like star.
The planet is very close to its star, and always faces with one side to it. Orbital period around the star - 17 hours.
The surface temperature reaches 2400 °, which is why the side facing the star is a molten surface.
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Exoplanet 55 Cancer e. (Janssen) - located in the planetary system of the sun-like star 55 Cancer A in the binary system 55 Cancer (HD 75732).
The exoplanet revolves around a sun-like star.
The planet is very close to its star, and always faces with one side to it. Orbital period around the star - 17 hours.
The surface temperature reaches 2400 °, which is why the side facing the star is a molten surface.
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In 2026, humanity set a new record for the farthest crewed spaceflight in history.
NASA’s Artemis II mission, which recently flew around the Moon, traveled farther from Earth than the legendary Apollo 13 mission back in 1970. After more than 50 years, the record was finally broken.
At one point, the astronauts were nearly 500,000 kilometers away from Earth. From that distance, our planet looked like nothing more than a bright dot in complete darkness.
And this is no longer just a symbolic mission. Artemis marks the beginning of a new lunar race. NASA, China, and private companies are now competing to build permanent infrastructure on the Moon.
The next step: lunar bases and preparation for future missions to Mars.
In many ways, we are witnessing the beginning of a completely new era of space exploration.
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NASA’s Artemis II mission, which recently flew around the Moon, traveled farther from Earth than the legendary Apollo 13 mission back in 1970. After more than 50 years, the record was finally broken.
At one point, the astronauts were nearly 500,000 kilometers away from Earth. From that distance, our planet looked like nothing more than a bright dot in complete darkness.
And this is no longer just a symbolic mission. Artemis marks the beginning of a new lunar race. NASA, China, and private companies are now competing to build permanent infrastructure on the Moon.
The next step: lunar bases and preparation for future missions to Mars.
In many ways, we are witnessing the beginning of a completely new era of space exploration.
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The very same spacesuit of Neil Armstrong - the first person in the world to step on the surface of the moon 🌘
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Forwarded from Secrets of Space
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Question from a subscriber: What is the difference between the Hubble and James Webb telescopes?
The conceptual difference between the Hubble and James Webb telescopes is that the former is in low Earth orbit, while the latter will be launched into a halo orbit at the L2 Lagrange point of the Sun-Earth system.
It will revolve around the Sun and move around the star in sync with our planet. The distance of the telescope from the Earth will be 1.5 million km away from the Sun. That is, if the James Webb hardware fails, it will most likely fail to be repaired. Therefore, a promising telescope is made extremely reliable. This is partly due to the constant postponement of the launch date.
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The conceptual difference between the Hubble and James Webb telescopes is that the former is in low Earth orbit, while the latter will be launched into a halo orbit at the L2 Lagrange point of the Sun-Earth system.
It will revolve around the Sun and move around the star in sync with our planet. The distance of the telescope from the Earth will be 1.5 million km away from the Sun. That is, if the James Webb hardware fails, it will most likely fail to be repaired. Therefore, a promising telescope is made extremely reliable. This is partly due to the constant postponement of the launch date.
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British scientists have recreated the process of the formation of the moon (according to their calculations, this happened about 4.5 billion years ago).
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NASA plans to place a 500-kilowatt nuclear reactor on the Moon by 2030.
NASA may place a 500-kilowatt nuclear reactor on the Moon by the end of 2030, as part of an ambitious strategy aimed at securing long-term U.S. energy leadership in space.
The system is being developed as part of the Fission Surface Power Initiative and will represent a quantum leap over the radioisotope generators that powered the Voyager 1 and 2 spacecraft, as well as the Mars rovers, for decades.
NASA estimates that, unlike less powerful reactors, a 500-kilowatt reactor would be capable of continuously powering lunar habitats, industrial equipment, communications systems, and even resource extraction operations. Deployment of the reactor on the Moon is reportedly planned for fiscal year 2030.
The document, titled "Weighing the Future: Strategic Options for U.S. Space Nuclear Power Leadership," offers three possible scenarios.
The most ambitious option envisions a program to develop a 100-500-kilowatt reactor under the leadership of NASA or the U.S. Department of Defense, with support from the Department of Energy.
The report emphasizes that scaling to the 100-500-kilowatt range is essential for maintaining U.S. leadership in space nuclear power.
The second option involves developing two installations with a capacity of less than 100 kilowatts through a public-private partnership. One project, led by NASA, envisions building a reactor in orbit or on the lunar surface, while the second, managed by the Department of Defense, is focused on a power system operating directly in space.
The third, more cautious scenario, involves developing a low-power radioisotope system—less than one kilowatt—to establish a regulatory framework and technical foundation before moving on to larger-scale solutions.
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NASA may place a 500-kilowatt nuclear reactor on the Moon by the end of 2030, as part of an ambitious strategy aimed at securing long-term U.S. energy leadership in space.
The system is being developed as part of the Fission Surface Power Initiative and will represent a quantum leap over the radioisotope generators that powered the Voyager 1 and 2 spacecraft, as well as the Mars rovers, for decades.
NASA estimates that, unlike less powerful reactors, a 500-kilowatt reactor would be capable of continuously powering lunar habitats, industrial equipment, communications systems, and even resource extraction operations. Deployment of the reactor on the Moon is reportedly planned for fiscal year 2030.
The document, titled "Weighing the Future: Strategic Options for U.S. Space Nuclear Power Leadership," offers three possible scenarios.
The most ambitious option envisions a program to develop a 100-500-kilowatt reactor under the leadership of NASA or the U.S. Department of Defense, with support from the Department of Energy.
The report emphasizes that scaling to the 100-500-kilowatt range is essential for maintaining U.S. leadership in space nuclear power.
The second option involves developing two installations with a capacity of less than 100 kilowatts through a public-private partnership. One project, led by NASA, envisions building a reactor in orbit or on the lunar surface, while the second, managed by the Department of Defense, is focused on a power system operating directly in space.
The third, more cautious scenario, involves developing a low-power radioisotope system—less than one kilowatt—to establish a regulatory framework and technical foundation before moving on to larger-scale solutions.
Secrets of Space 🔭
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Visualizing lightning on Earth
All lightning was recorded by meteorologists in August-September last year.
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All lightning was recorded by meteorologists in August-September last year.
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