Science

Wednesday, 3 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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Large Magellanic Cloud
It contains approximately 60 globular clusters, 700 open clusters, and 400 planetary nebulae.
lava
The most common type of lava in Hawaii and Iceland is pahoehoe.
It is also known as "smooth, unbroken lava". It is characterized by low viscosity, a large amount of ...
Nicotine
Until the end of the 20th century, it was believed that nicotine did not lead to the development of cancer.
But already in the first decade of the 21st century, this view was questioned and a debate began among scientists about its carcinogenic properties.
Silver
Silver compounds are used to silver mirrors and to produce explosives (e.g. silver acetylides).
They are also used in analytical chemistry, e.g. to detect aldehydes (Tollens test).
Earth
The lowest point on our planet is the Mariana Trench.
The depth of the trench located in the Pacific Ocean at its lowest point is 10.924 m below sea level ...
Enceladus
The closest Cassini flyby over the surface of Enceladus took place in October 2015.
The probe, moving at a speed of 35.000 km/h, examined the composition of the material ejected by the geysers.
Ganymede
The surface of Ganymede is geologically very diverse.
On its surface, there are both geologically young areas and much older, darker, and covered with many craters.
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.
NASA
In 1997, NASA, in collaboration with ESA and ASI (Italy), launched the Cassini-Huygens space-research mission.
Commonly referred to as Cassini, its goal was to study Saturn, its rings, and natural satellites. Ca ...
Fungi
Mycelium can become visible to the naked eye, for example, on various surfaces and substrates, such as damp walls, spoiled food, etc.
Mycelia, grown on solid surfaces, are called colonies. Some individual colonies can reach extraordin ...