Science

Tuesday, 30 December 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Milky Way
Until 1920, most astronomers believed that the Milky Way contained all the stars in the universe.
Only observations made by Edwin Hubble made humanity realize that it is only one of many galaxies.
Deimos
Unlike Phobos, Deimos rises in the east and sets in the west of the Martian sky.
Earth
Earth is a planet full of life. It is inhabited by approximately 11 million species, of which approximately 1.9 million have been described so far.
Below you will find a short list of the most important organisms along with the approximate number o ...
Snow
On average, snowflakes are about five millimeters in diameter and weigh about four milligrams.
As temperatures rise, snowflakes become larger as the crystals thaw and then stick together to form ...
Nicotine
Nicotine may have a therapeutic effect in patients with neurodegenerative brain diseases.
This is because nicotine affects not only acetylcholine but also other neurotransmitters, especially ...
Milky Way
It was only in 1610 that Galileo discovered that the Milky Way was made of stars.
Previously, it was believed that it could be part of the Earth's atmosphere or underexposed stars (it was believed that stars shine with light reflected from the Sun) that were in the Earth's shadow.
Earth
Most people live in the northern hemisphere.
This is because the Northern Hemisphere accounts for 68 percent of all landmass. It is estimated that in the future up to 90 percent of the population may live in this part of the globe.
Earth
The Earth has the only natural satellite - the Moon.
The moon is relatively large for a natural satellite. Its diameter is approximately ¼ the diameter of the Earth. It orbits the Earth at an average distance of 384.400 km.
NASA
The National Aeronautics and Space Administration agency was established on July 29th, 1958 by president Dwight Eisenhower.
It was a response to the launch of a Soviet artificial satellite Sputnik 1 in 1957.
Deimos
Deimos orbits Mars in 30 hours, 17 minutes and 55 seconds.
It moves in an almost circular orbit that is systematically expanding. So unlike Phobos, which will most likely fall to the surface of Mars, Deimos will one day escape into space.