Science

Friday, 27 February 2026
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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Moon
The period when the moon orbits the Earth is called a sidereal month, and it lasts 27,3 days.
Cosmos
The final stage – the death of the cosmos as we know it.
There will eventually come a point in the history of the universe when new stars will stop forming. ...
NASA
The Space Shuttle program launched on April 12th, 1981, was the fourth crewed program in NASA's history.
It launched a total of 135 missions and was the first program to reuse a spacecraft. Its main goal w ...
Nicotine
Tobacco, whose leaves are the source of nicotine, was cultivated by people living in America two thousand years before its discovery by Columbus.
It came to Europe in the 16th century and both tobacco and the nicotine it contained were originally ...
Fungi
Most fungi develop as hyphae, which are cylindrical, thread-like structures 2-10 µm in diameter and up to several centimeters long.
The hyphae branch and connect, which leads to the formation of mycelium, which is an interconnected ...
Cosmos
The Sun has a diameter of 1.392.684 kilometers.
It is about 109 times larger than the Earth and its mass is approximately 333.000 Earth masses. The Sun accounts for about 99.86 percent of the mass of the solar system.
Silver
The largest silver producer in Europe is Poland.
The Lower Silesian copper and silver deposits, exploited by KGHM Polska Miedź, were in second place ...
Phobos
Phobos was photographed by the following probes: Mariner 7, Mariner 9, Viking 1, Phobos 2, Mars Global Surveyor, Mars Express, and Mars Reconnaissance Orbiter.
Mushrooms
Growing in North America, Europe and Asia, a fungus called Hydnellum peckii, secretes a red blood substance on a white hat.
The fungus is inedible, but unfailingly decorative.
Cosmos
The smallest galaxy discovered so far is Segue 2, located adjacent to the Milky Way.
It is 114.000 light years away from us and is approaching at a speed of 40 km/s towards us. It is ma ...