What would happen if a black hole with the size of a coin appeared on Earth?

✨It would take at least 5 billion years for such a black hole to completely swallow the Earth.

Surely, the Earth would fall in complete chaos and the black hole would turn into a wisp of lava, a mixture of gases, a collapsing crust, and everything else in just a few days
#Blackhole
👉 @AstroMechanics

Jupiter's polar lights

✨Jupiter has the most extensive magnetosphere with powerful radiation belts, allowing it to produce fireworks of auroras.

⚡️However, only space telescopes and orbiting spacecraft can see them, as their maximum value falls on the ultraviolet and infrared ranges.

Unlike our planet, where auroras depend on the activity of the Sun, on Jupiter they never stop and only vary in intensity✨
#Jupiter
👉 @AstroMechanics

The Sun is getting brighter every year

✨Within 3.5 billion years its brightness is expected to increase by 40% and its radius will be 256 times larger than it is today.

Such a catastrophe leads to the complete disappearance of water from the surface of the Earth and ultimately destroys all forms of life.

By then, conditions on our planet will be similar to those on Venus today✨

#Sun
👉 @AstroMechanics

#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