Science

Monday, 23 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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Snow
Snowfall has also been observed on Mars.
They were observed by the Phoenix probe. The snow fell from clouds flowing four kilometers above the ...
Earth
The highest point on Earth is Mount Everest.
The peak is 8848 m above sea level. However, Mount Everest is not the farthest point from the center ...
Silver
Silver compounds are toxic to bacteria, viruses, fungi and algae.
Compounds of other heavy metals, such as copper, lead, or mercury, also have such properties, but si ...
NASA
The first Crew Dragon launch took place on May 30th, 2020.
Crew Dragon Endeavour was launched atop a Falcon 9 rocket, and docked at the ISS carrying Doug Hurle ...
Mushrooms
Mycelium may become visible to the naked eye, for example, on various surfaces and substrates such as damp walls or spoiled food.
Myceliums grown on solid substrates are referred to as colonies. Some individual colonies can reach ...
Moon
The surface of the Moon is littered with impact craters because it does not have an atmosphere thick enough to destroy pieces of rock heading towards it.
The largest crater on its surface is the South Pole-Aitken Basin, it is 2500 km in diameter and 13 km deep.
NASA
The most memorable mission of Project Mercury was Freedom 7.
The liftoff took place on May 5th, 1961. It allowed Alan Shepard Jr. to go down in history as the fi ...
Amber
The English word amber derives from the Arabic anbar.
Its ancient names(electrum in Latin and ēlektron in Ancient Greek) are derived from the Ancient Greek word ēlektōr, which means "shining sun".
Snow
Snow is formed from the finest droplets of over-cooled water in clouds.
These droplets attach themselves to nuclei of crystallization, which can be, for example, dust parti ...
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 ...