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What happens if a star approaches a black hole? 💥
This video clearly demonstrates the process: the star gradually approaches the black hole, its orbital speed increases, and at the moment of close encounter the outer layers of the star begin to tear away. Most of the stellar material is scattered into interstellar space, but some of the material is captured and starts rotating around the black hole, forming a bright accretion disk.
This video clearly demonstrates the process: the star gradually approaches the black hole, its orbital speed increases, and at the moment of close encounter the outer layers of the star begin to tear away. Most of the stellar material is scattered into interstellar space, but some of the material is captured and starts rotating around the black hole, forming a bright accretion disk.
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Sunset on Mars, captured by the Curiosity rover ☀️
Due to the peculiarities of light scattering in the atmosphere of the red planet, the sky turns blue during sunset.
Due to the peculiarities of light scattering in the atmosphere of the red planet, the sky turns blue during sunset.
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Is the speed of light really that high?💡
A ray of light can circle the Earth seven and a half times in just one second. Seems fast, let's scale it up.
To cover the distance to the Moon, light takes already 1.255 seconds. And to travel from Earth to Mars — about 3 minutes. And these are just the nearest neighbors in the Solar System.
A ray of light can circle the Earth seven and a half times in just one second. Seems fast, let's scale it up.
To cover the distance to the Moon, light takes already 1.255 seconds. And to travel from Earth to Mars — about 3 minutes. And these are just the nearest neighbors in the Solar System.
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🌟 After the star's outburst.
In 2002, a dim star in the constellation Monoceros suddenly became 600,000 times brighter than the Sun. This is about V838 Monocerotis, located approximately 20,000 light-years from Earth. During the outburst, the star expanded sharply in size and illuminated the dust surrounding it.
It was these dust shells that NASA captured using the Hubble Space Telescope over several months in 2002. The images show light traveling through increasingly distant layers of dust, creating a "light echo" effect.
Although the star itself has long returned to its previous brightness, its outburst continues to help scientists better understand stellar evolution in the Universe.
In 2002, a dim star in the constellation Monoceros suddenly became 600,000 times brighter than the Sun. This is about V838 Monocerotis, located approximately 20,000 light-years from Earth. During the outburst, the star expanded sharply in size and illuminated the dust surrounding it.
It was these dust shells that NASA captured using the Hubble Space Telescope over several months in 2002. The images show light traveling through increasingly distant layers of dust, creating a "light echo" effect.
Although the star itself has long returned to its previous brightness, its outburst continues to help scientists better understand stellar evolution in the Universe.
❤6🤩2🆒1
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🌍 Water against fire and noise.
During rocket launches and fire tests, NASA floods the launch pad with huge amounts of water.
This system is called Ignition Overpressure Protection and Sound Suppression (IOP/SS). It:
— Reduces the thermal load from the engines;
— Dampens the shock wave and reflects acoustic energy;
— Prevents dangerous vibrations;
— Helps suppress possible fires.
Without this 'water shield,' the launch infrastructure literally would not withstand the power of rocket engines.
During rocket launches and fire tests, NASA floods the launch pad with huge amounts of water.
This system is called Ignition Overpressure Protection and Sound Suppression (IOP/SS). It:
— Reduces the thermal load from the engines;
— Dampens the shock wave and reflects acoustic energy;
— Prevents dangerous vibrations;
— Helps suppress possible fires.
Without this 'water shield,' the launch infrastructure literally would not withstand the power of rocket engines.
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🪐 Zero-gravity training.
The best way to prepare for spacewalks is to train underwater in NASA's 12-meter pool in Houston.
Safety staff adjust the suit's weight to create perfect neutral buoyancy. Thanks to such training, the first spacewalks feel familiar and safe, despite their extremity.
The best way to prepare for spacewalks is to train underwater in NASA's 12-meter pool in Houston.
Safety staff adjust the suit's weight to create perfect neutral buoyancy. Thanks to such training, the first spacewalks feel familiar and safe, despite their extremity.
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🌍 The ocean in motion.
This visual material shows the Earth's ocean currents: white — up to 600 meters deep, blue — deeper.
Data was collected from satellites, sensor buoys, and other sources from 2021–2023.
This visual material shows the Earth's ocean currents: white — up to 600 meters deep, blue — deeper.
Data was collected from satellites, sensor buoys, and other sources from 2021–2023.
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🛰 Orbital “somersault” of the ISS.
The ISS rarely changes orientation, but before and after the SpaceX CRS-33 mission, the station performed a turn for a reboost.
In a 60x timelapse — a complete orbital “somersault” from the Atlantic to the Pacific: sunset, thunderstorms with lightning, atmospheric glow, moon glare, stars, and sunrise — all in one shot.
The ISS rarely changes orientation, but before and after the SpaceX CRS-33 mission, the station performed a turn for a reboost.
In a 60x timelapse — a complete orbital “somersault” from the Atlantic to the Pacific: sunset, thunderstorms with lightning, atmospheric glow, moon glare, stars, and sunrise — all in one shot.
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👽 Observing the conflict from space.
The timelapse shows ballistic missile flights on December 26–27.
The timelapse shows ballistic missile flights on December 26–27.
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👾 Mysterious black auroras.
An astronaut shares observations of a rare phenomenon — the "black" northern lights. These dark spots differ from the usual red, green, and purple lights and harbor unusual physics.
NASA launched a rocket from Alaska to study this phenomenon.
An astronaut shares observations of a rare phenomenon — the "black" northern lights. These dark spots differ from the usual red, green, and purple lights and harbor unusual physics.
NASA launched a rocket from Alaska to study this phenomenon.
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🟠 Navigation on Mars without GPS.
The Perseverance rover has a new navigation system — Mars Global Localization. It allows the rover to independently determine its position on the surface of Mars without the help of operators on Earth.
The algorithm compares panoramic camera images with orbital maps made by the Mars Reconnaissance Orbiter. The accuracy is about 25 cm.
This means that the rover will be able to move further and faster autonomously — which means more research and new discoveries.
The Perseverance rover has a new navigation system — Mars Global Localization. It allows the rover to independently determine its position on the surface of Mars without the help of operators on Earth.
The algorithm compares panoramic camera images with orbital maps made by the Mars Reconnaissance Orbiter. The accuracy is about 25 cm.
This means that the rover will be able to move further and faster autonomously — which means more research and new discoveries.
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💫 The Heart of the Milky Way in Detail.
A new image taken by the Atacama Large Millimeter Telescope shows the central region of the Milky Way galaxy in incredible detail.
The image shows an area more than 650 light-years across, known as the central molecular zone, where giant gas structures and clouds hiding young stars are located.
A new image taken by the Atacama Large Millimeter Telescope shows the central region of the Milky Way galaxy in incredible detail.
The image shows an area more than 650 light-years across, known as the central molecular zone, where giant gas structures and clouds hiding young stars are located.
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🚀 The next Starship launch is already close.
Elon Musk confirmed that SpaceX plans the next Starship launch already next month.
Elon Musk confirmed that SpaceX plans the next Starship launch already next month.
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Rapid movement in the constellation Orion ✨
The sky changes, but our life is too short to notice it. Fortunately, we have telescopes.
This animation shows how the stars in the constellation Orion will move over the next 450,000 years according to data from Gaia and Hipparcos.
The sky changes, but our life is too short to notice it. Fortunately, we have telescopes.
This animation shows how the stars in the constellation Orion will move over the next 450,000 years according to data from Gaia and Hipparcos.
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