#Astrowallpaper
👉 @AstroMechanics

The Great Dark Spot on Neptune

✨Its size is comparable to the size of Earth and resembles the Great Red Spot of Jupiter

It was discovered in 1989 by the Voyager 2 spacecraft. Both the Great Dark Spot of Neptune and the Great Red Spot of Jupiter are anticyclones.

Wind speeds reached supersonic speeds of 2,400 km/h around the spot, which was the highest in the entire Solar System. It is believed that the spot was a hole in the methane clouds of Neptune✨

#Neptune
👉 @AstroMechanics

The greatest geomagnetic storm in history

✨On September 1 to 2, 1859, the largest geomagnetic storm ever caused by a solar flare occurred.

During the storm telegraph systems all over Europe and North America failed; auroras were observed throughout the world, even over the Caribbean✨

#geomagnetic
👉 @AstroMechanics

Where lies the center of the Universe?

✨According to the cosmological principle - all points of the Universe on large scales are equal.

Thus, neither the center nor the edge of the Universe exists. Or, perhaps, we could say it differently: the Universe has a center everywhere✨

#UniverseCenter
👉 @AstroMechanics

The Earth's core is slowly freezing 🌎

✨And from that gradually crystallizes: the diameter of the inner solid core increases by a few centimeters per century✨

#Core
👉 @AstroMechanics

The Carina Nebula extends more than 300 light years

✨It's one of the largest areas of star formation in the Milky Way

On a dark night, this nebula is easy to spot in the sky, even with the naked eye. Yet only visible in the southern hemisphere, as it lies 60 degrees south of the celestial equator✨

#Nebula
👉 @AstroMechanics

The temperature "inside the lightning" can reach 30,000 kelvin

✨Whereas the temperature on the surface of the Sun is only 6,000 Kelvin (5,700º C).

Yet one cannot claim that lightning is hotter than the Sun, as the layer of the luminary is the coldest one. The plasma inside the Sun attains a temperature of about 15 million kelvin, while the Sun's atmosphere is 500,000 kelvin✨

#Lightning
👉 @AstroMechanics

NASA has decided to extend the Ingenuity drone mission until September 2022!

✨The vehicle is currently making a series of flights toward the ancient Mars River Delta. Ingenuity will be used to conduct aerial reconnaissance and survey objects beyond the rover's reach✨


#Ingenuitydronemission
👉 @AstroMechanics

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✨

#Mars
👉 @AstroMechanics

#Fun😂
👉 @AstroMechanics

Billionaire Richard Branson aims to send tourists to space thrice a month🚀

✨By 2023, his company plans to complete an upgrade of its launch vehicle and commission a second spacecraft✨

#Fact
👉 @AstroMechanics

✨Strange glowing rings in Beijing. 11 March 2022 puzzled the locals👽.

#Fact
👉 @AstroMechanics

Loop Quantum Gravity

✨LQG is a theory to unite Quantum Mechanics and General Relativity. In LQG space-time is a network The background of Einstein's theory of gravity is replaced by nodes and links to which Quantum Properties are assigned. In this way, space is built up of discrete chunks. LQG is in large part a study of these chunks✨

#QuantumGravity
👉 @AstroMechanics

Why does the Moon "follow" us when we drive?

✨As we rush down the road, we notice how everything flies past us in the opposite direction: trees, houses, fences, the road. And from the Moon, too, we expect it to fly past us, or at least go backwards the farther forward we go. When it doesn't, we feel as if it is "following" us.

The Moon may not seem to be very far away from us, but the average distance from it to Earth is 384,400 km. This enormous distance explains why, when we drive a car and look at the Moon, it seems as if it is following us.

Compared to the distance our car travels in a few minutes, this distance is enormous. So as we drive, the angle at which we see the moon remains virtually unchanged. And while everything flies past us, there is a sense that the Moon is "following" us✨

#Fact
👉 @AstroMechanics

First selfies in space

✨Buzz Aldrin took this photo against the Earth during the Gemini 12 mission in November 1966✨

#Fact
👉 @AstroMechanics

✨The Cat's Eye Nebula is a planetary nebula formed after the death of a star with a mass approximately equal to that of the sun✨

#Cat'seyeNebula
👉 @AstroMechanics

✨A very interesting UFO was spotted in Acapulco, Mexico on 21 November 2021👽

#UFO
👉 @AstroMechanics

Astronauts on the ISS watch 15-16 sunsets and sunrises every day😱

✨The International Space Station is about 220 km above Earth and travels at 27,700 km/h.

This means that it orbits every 92 minutes. Therefore, the astronauts on board see sunsets and sunrises every 45 minutes✨

#Fact
👉 @AstroMechanics

EARTH DAY🌍!

✨Earth Day is an annual event on April 22 to demonstrate support for environment. First held on April 22, 1970, it now includes a wide range of events coordinated globally by EarthDay.org (formerly Earth Day Network) including 1 billion people in more than 193 countries✨

HAPPY EARTH DAY🌏!
👉 @AstroMechanics

እንኳን ለብርሃነ ትንሳኤው
በሰላም አደረሳችሁ አደረሰን!
----መልካም የትንሣኤ በዓል🙏🙏------

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✨.

#Saturn
👉 @AstroMechanics