Infinity-Science

The Gliese Catalogue of Nearby Stars is a modern star catalogue of stars located within 25 parsecs (81.54 lightyearsy) of the Earth.

Neptune has the strongest winds in the Solar System at 2,100 km/hour

While in space astronomers can get taller, but at the same time their hearts can get smaller.

​​⑉⑉⑉⑉⑉⑉⑉⑉⑉⑉༄༄༄⑉⑉⑉⑉⑉⑉⑉⑉⑉⑉ Why do both fission and fusion release energy? Nuclear fission involves splitting atomic nuclei, and is the process used in nuclear power stations. Fusion, as its name suggests, involves fusing nuclei and is the power source of the stars. While both fission and fusion release energy, the process and amount is very different. Fission exploits the instability of nuclei of heavy elements like uranium, which can be split using neutrons, producing fragments with a lower total mass. The difference appears as energy – courtesy of E=mc² – which is carried away by fast-moving neutrons. In contrast, fusion involves ramming together nuclei of light elements like hydrogen so violently they fuse together, producing fresh nuclei plus neutrons. Again, the lower mass of the fusion products is turned into energy via Einstein’s famous equation, but over 10 times the amount produced by fission for each gram of ‘fuel’. ⑉⑉⑉⑉⑉

Galaxies are formed into Local Groups, Superclusters, and then into Filaments.

Our nearest major galactic neighbour is the Andromeda Galaxy at 2.5 million light years away, and contains up to one trillion suns. It is heading towards us at a speed of 313,200 miles per hour, when it will eventually collide with our Milky Way Galaxy. It will take Andromeda roughly 3 billion years to get here

The moon is moving away from Earth at a speed of about 1.5 inches per year

Despite being closest to the sun, Mercury is not the hottest planet. The hottest planet is Venus (at 462 Celsius).

The spinning neutron star at the heart of the Crab Nebula is just 10 kilometres wide, and 50 trillion times denser than lead

If you would place a pinhead sized piece of the Sun on the Earth you would die from standing within 145 km (90 miles) from it.

One of Jupiter's moons is believed to grow and shrink because of the water beneath its frozen surface.

The Tarantula Nebula (NGC 2070) is located in the eastern portion of the Large Magellanic Cloud. It is the only extra-galactic nebula that is visible to the naked-eye. If NGC 2070 were as close as the Orion Nebula (M42), it would take up the entire constellation of Orion and be bright enough to cast a shadow

The first space telescope was the Copernicus, sent out in 1972.

The most difficult problem to any future human mission to Mars is to ensure reliable radio communication because Sun often blocks communication between Earth and Mars.

The gasses in a sunspot average 3,000 degrees Fahrenheit (1649 °C) cooler than the rest of the Sun.

Famous globular cluster M13 has 100,000 stars packed into a space 150 light years across. The centre of this cluster is so crowded that it's thought that stars crash into each other forming new suns called "blue stragglers"

Actually, rotational speed around the Earth is also dependent on altitude above sea level, and a person at the top of a mountain on the Equator is actually travelling faster than 1,660 kilometres per hour (as he has further to go with each revolution). Taking this to an extreme, an object in geostationary orbit around the Earth at an altitude of about 36,000 kilometres above the ground has to travel at about 11,000 kilometres per hour.