CNBC: Scientists discover third rock around alien sun.
https://www.cnbc.com/2022/02/20/scientists-discover-third-rock-around-alien-sun.html

Space.com: Making spaceflight history: John Glenn orbited Earth 60 years ago today.
https://www.space.com/john-glenn-first-american-orbital-flight-60-year-anniversary

Digital Trends: Hubble captures epic view of three galaxies merging into one.
https://www.digitaltrends.com/news/hubble-triple-galaxy-merger/

A hidden supermassive black hole in a dwarf galaxy

✨It was discovered in the Constellation Hound Dogs - in the dwarf galaxy Mrk 462, about 110 million light years away.

Discovered black hole has a mass of about 200 thousand solar masses. It is one of the smallest supermassive black holes. The hole was found by NASA's Chandra X-Ray Space Observatory, launched in 1999.

The agency called the discovery one of the first cases where a heavily hidden supermassive black hole was found in a dwarf galaxy✨

#Mrk462info
👉 @AstroMechanics

Earth Rotates Faster and Faster Every Year🌍

✨Scholars have analyzed that the current speed of the Earth's rotation has hit its maximum for the past 60 years. If it keeps going this way, estimated and actual time may differ by 0.9 seconds by 2026.

And then, we would have to turn down Earth time for the first time

#Earth
👉 @AstroMechanics

Why are this galaxies so thin?

✨Many disk galaxies are actually just as thin as NGC 5866, pictured above, but are not seen edge-on from our vantage point. One galaxy that is situated edge-on is our own Milky Way Galaxy. Classified as a lenticular galaxy, NGC 5866 has numerous and complex dust lanes appearing dark and red, while many of the bright stars in the disk give it a more blue underlying hue. The blue disk of young stars can be seen extending past the dust in the extremely thin galactic plane, while the bulge in the disk center appears tinged more orange from the older and redder stars that likely exist there✨

#Galaxy
👉 @AstroMechanics

What is the colour of Universe?

✨This question came up when trying to determine what stars are commonplace in nearby galaxies. The answer, depicted above, is a conditionally perceived shade of beige. To determine this, astronomers computationally averaged the light emitted by one of the larger samples of galaxies analyzed: the 2,00,000 galaxies of the 2dF survey. The resulting cosmic spectrum has some emission in all parts of the electromagnetic spectrum, but a single perceived composite color. This color has become much less blue over the past 10 billion years, indicating that redder stars are becoming more prevalent. And it was finally named as cosmic latte✨

#UniverseColor
👉 @AstroMechanics

Europa is the celestial body with the smoothest surface in the solar system🌑

✨Jupiter's satellite is entirely covered by an ocean with a thick crust of ice on its surface. Underneath that ice lies roughly 2-3 times as much water as on our planet.

Some scientists believe the ocean waters of Europa may be hot enough for complex life to develop on the satellite✨
#Europa
👉 @AstroMechanics

Prague Astronomical Clock Chimes

✨The astronomical clock face was created in Prague back in 1410. What is surprising, the clock is the third oldest astronomical clock in the world. And it still works today.

⏱The dial shows Babylonian, Central European, Old Bohemian and sidereal time. Other indications show the position of the Sun among the zodiac signs and the current lunar phase✨
#PragueChimes
👉 @AstroMechanics

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