Science

Sunday, 14 December 2025
13 facts about Deimos
13 facts about Deimos
A smaller moon of Mars
Deimos is a smaller and more distant Martian moon. Its diameter is only 12.4 km, although it is difficult to talk about the diameter in the case of su ...

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Ganymede
Ganymede orbits Jupiter at a distance of 1.070.400 kilometers. The complete orbit takes 7 days and 3 hours.
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Cosmos
The exact size of the universe cannot be estimated.
We can perceive only the visible region of it (one from which light can move faster than the expandi ...
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Milky Way
In addition to the stellar halo, our galaxy is also surrounded by a halo made of hot gas, which is much more extensive than the stellar halo.
Its temperature is from 1 million to 2.5 million degrees Celsius and it extends for hundreds of thou ...
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Graphene
The publication of a groundbreaking experiment on two-dimensional graphene, as well as the description of a surprisingly easy method of obtaining it, triggered a real “graphene gold rush.”
Research has expanded and divided into many different subfields, examining various unique properties of graphene-quantum mechanics, electrical, chemical, mechanical, optical, magnetic, etc.
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Graphene
Nowadays, scientists are interested in a single layer of graphite carbon atoms.
In graphite, each carbon atom is connected to three other atoms and all these bonds lie in one plane ...
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Aurora
To the naked eye, we see the Aurora Borealis and Aurora Australis lights as greenish and white. Full colors can only be seen in the photos.
This is because, in low light, the eye registers light with rods that are not color sensitive but respond only to light.
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Brain
The brain requires constant supplementation with oxygen.
Cut off from oxygen, brain cells start dying after about 5 minutes.
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NASA
Any astronaut interested in working for NASA has to complete 1 000 hours of flying time.
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Brain
The average weight of a brain ranges from about 1,225 to 1,375 grams.
Men's brains are heavier than women's brains, but the weight does not affect the brain’s performance. An infant's brain weighs only 350 grams.
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Tears
Watery eyes may be a signal of dry eye syndrome.
Dry eye syndrome is caused by insufficient quantity or quality of tears, which prevents the proper lubrication of eyeballs. It causes excessive watering of the eyes, as a response to the irritation.
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15 facts about Ganymede
15 facts about Ganymede
The largest moon in the solar system
Ganymede is a huge moon by solar system standards. It is larger than Pluto and Mercury. Apparently, it was observed with the naked eye in ancient time ...
16 facts about Enceladus
16 facts about Enceladus
An icy world with a liquid ocean beneath the surface
Although the name of the moon comes from the giant Enkelados, who was crushed by Zeus in Sicily, the moon itself is relatively small. Its small size i ...
16 facts about Large Magellanic Cloud
16 facts about Large Magellanic Cloud
It is the largest satellite galaxy of the Milky Way
It owes its name to Ferdinand Magellan, who admired it in the sky during his expeditions around the world. To the naked eye, it can be seen as a faint ...
20 facts about Moon
20 facts about Moon
The only natural satellite of the Earth
We call it the silver globe. It has stimulated human imagination for centuries and was ubiquitous in folk stories and legends. It was only in the seco ...
25 facts about Earth
25 facts about Earth
Our house
Although 4 billion years ago no sane person would have given the Earth a chance to support life, today it is a concentration of countless forms of liv ...
16 facts about Milky Way
16 facts about Milky Way
Our galactic home
A galaxy is a gravitationally connected system of stars, dust, gas, and dark matter. It is estimated that there are almost 3.9 trillion of them in the ...
15 facts about nicotine
15 facts about nicotine
Neurotoxin
Nicotine is a natural insecticide that some plants use to defend themselves against pests. It is also a substance that people use as a stimulant, and ...
22 facts about fungi
22 facts about fungi
Eukaryotic microorganisms
Mushrooms are found all over the world and grow in a wide range of habitats. They can be found in extreme environments such as deserts or areas with h ...
24 facts about silver
24 facts about silver
One of the earliest metals used by humanity
Silver is one of the first metals discovered by man, it has been known since antiquity. The Egyptians valued them more than gold. It was used to make ...
25 facts about Cosmos
25 facts about Cosmos
Space, the final frontier
The cosmos or universe is, by definition, all that has existed, exists, and will exist. It is built by three basic elements: space-time, energy, and t ...
19 facts about graphene
19 facts about graphene
Carbon structure resembling a honeycomb shape
This increasingly popular material, which is a flattened form of carbon arranged in cubic structures, may revolutionize our world and the state of cur ...
13 facts about snow
13 facts about snow
White fluff of the winter landscape
Snow, the white fluff of the winter landscape, is not only one of the most charming atmospheric phenomena but also a small wonder of nature. Falling f ...
21 facts about Anorexia Nervosa
21 facts about Anorexia Nervosa
Serious eating disorder
Anorexia is a mental disorder that affects an increasing number of young people. The problem of this disorder is very complex and is caused by many fa ...
14 facts about lava
14 facts about lava
Molten rock released from inside the Earth
Lava is molten material from the Earth's interior (magma) that has escaped to the surface.It is not identical to magma, its composition is slightly di ...
22 facts about Mushrooms
22 facts about Mushrooms
Fungi
Fungi are found worldwide and grow in a wide range of habitats. They can be found in extreme environments such as deserts or areas with high concentra ...
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