Science

Saturday, 30 May 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 density of the Moon is on average 3346,4 kg/m3.
It is therefore the second densest moon in the Solar System, second only to the moon Io.
Titan
Most of the dunes are located near the equator.
They stretch for hundreds of kilometers, and their height reaches 100 meters. Unlike Earth’s, Titan’s dunes are made of organic compounds.
NASA
On September 26th, 2022, the DART mission successfully hit an asteroid.
The Double Asteroid Redirection Test (DART) mission launched on November 24th, 2021 with an aim of c ...
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 is also used in the production of electrical and electronic equipment, high-voltage contacts, solder, high-capacity silver-zinc and silver-cadmium batteries, and photovoltaic cells.
Silver is the only catalyst that allows the conversion of ethylene into ethylene oxide, which then undergoes hydrolysis to produce ethylene glycol, used to produce polyester.
lava
During a volcanic eruption, several hundred cubic meters of lava are usually ejected.
These volumes can vary, sometimes being very large, such as during the eruption of the Laki rift vol ...
Large Magellanic Cloud
It is located in the constellation of Dorado and Mensa.
Moon
The Moon is so far the only celestial body on which humans have landed.
The first successful landing on the Moon took place on July 20, 1969, at 21:17 CET. Shortly after la ...
Titan
There are three seas on its surface.
The largest–Kraken Mare–has an area of 400,000 square kilometers, Ligeia Mare has an area of 126,000 ...
Snow
Snow is composed of ice crystals.
Each crystal is transparent, like ice. Light is reflected and scattered at the interface between the ...