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🪐 Rings of Uranus
It has a total of 13 rings, with the inner narrow bands having a dark grey hue and the outer rings (ν and μ) shining brightly.
These rings are mostly composed of extremely dark particles with an albedo below 2%, suggesting a composition of water ice combined with darker organic matter.
Purple Earth
Astrobiologists suggest that Earth may have once been purple. Before the dominance of plants, ancient microbes may have used a light-absorbing molecule called retinol, which gave them a purple hue.
Jupiter protects the Earth 💪
It does this by using its powerful gravitational pull to deflect potentially dangerous asteroids and space debris.
A visual comparison of the rotation speed of the solar system planets 💫
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This is what a walk on the International Space Station looks like 👨🚀
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If Saturn could contain Earth, it would need about 700 similar balls of equal shapes and sizes to fill it completely.
Comparison: Saturn's radius is ~ 9 Earth radii, Saturn's mass is ~ 95 Earth masses.
Funny from the ISS: Astronaut and SpaceX Crew-5 crew engineer Nicole Mann took a funny selfie photo through a weightless bubble that refracted her image.
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⚡️ 1 light second, 1 light year, 10, 100, 1000, 10,000, 10,000 and 100,000 light years on the scale of the infinite universe.
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Mars is just around the corner: NASA has launched its new project simulating astronauts' life on the planet.
The first of three planned missions of the agency launched a year ago, on 25 June 2023, as part of the Crew Health and Performance Exploration Analog project. The essence of the CHAPEA-1 mission is that four volunteers for a year will stay in a special "bunker", living conditions in which are as close as possible to those that can be created on the future Martian base.
We have all seen the behaviour of astronauts in weightlessness. But few of us have seen the behaviour of four-legged friends, such as cats, who have been placed in a training room for testing.
It looks like fun! 😸
☀️ Demonstration of the speed at which the planets of the Solar System rotate around the Sun.
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Astronaut Christopher Cassidy works outside the space station.
And some numbers that will help you look at this video in a different way: the station is currently moving relative to the Earth's surface at a speed of 28,000 km/h (8 times faster than a bullet), and the station weighs 418 tons.
🌡 Average temperatures of the planets in our solar system:
- Mercury 167°C
- Venus 464°C
- Earth 15°C
- Mars -65°C
- Jupiter -110°C
- Saturn -140°C
- Uranus -195°C
- Neptune -200°C
🔵 Neptune, classified as a gas giant, remains one of the least studied objects in our solar system.
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🌌 Amazing phenomenon:
Microquasar SS 433 containing a black hole.
🪐 This visualisation shows a comparison of the size of stars relative to the solar system
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❓ What do you think is in the picture above? The picture above shows a system of 79 Jupiter's moons along with their orbits. It's not easy to figure it out, but we believe you can do it!
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Animation of the descent and landing of the Huygens probe from real-world images🎥
This is the first and so far the only soft landing ever made in the Outer Solar System. It took Huygens 2 hours 27 minutes 50 seconds to parachute through Titan's atmosphere. The collision of the device with the surface of Titan occurred at a speed of 16 km/h (or 4.4 m/s).
In total, more than 500 megabytes of information were transmitted, including about 350 images. To make this video look more epic, remember that there are 1.2 billion kilometers from Earth to Titan.
NASA astronauts recorded a mock video about what the Olympics might look like in space
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☀️ The Space Observatory for Solar Dynamics (SDO) shared a recording of the Sun in various ultraviolet wavelengths. While a star looks quite calm in the visible range and with a small number of spots on it, radiation in different wavelengths of ultraviolet radiation reveals much more detail.
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You can watch the rocket launch not only from the ground: pilots filmed the launch of the SpaceX Falcon 9 from the cockpit.
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An observer on the ground films the SpaceX Crew Dragon spacecraft entering the planet's atmosphere as it returns to Earth.
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🌏 This is how the appearance of our planet has changed over the course of 200 million years.
Over the past 200 million years, the appearance of the Earth has undergone impressive changes.
The period includes changes in landforms, mountains, oceans, the evolution of plants and animals, and in particular the split of the supercontinent Pangea into 6 others, smaller and more widely known in the modern world — Eurasia, Asia, Africa, North and South America, and Antarctica.
Mercury, Venus, Mars, Earth — what elements make up the atmosphere of the eight planets of the Solar System. Let's take a look today. On the chart from COMPOUND INTEREST 2014.
Mercury is predominantly composed of O2 (oxygen), which is 42% of the total mass of gases on the planet. Venus and Mars are made up of 96% and 95% CO2 (carbon dioxide), respectively. The atmospheres of the four gas giants, such as Jupiter, Saturn, Uranus, and Neptune, are almost completely filled with hydrogen.
🌅 NASA's InSight lander has recorded a sunset on Mars in 2022.
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