Science

Wednesday, 1 July 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
Snowflakes fall relatively slowly, at about four kilometers per hour.
On average, heavy rainfall falls at about 20 kilometers per hour, and hail can reach much higher spe ...
Moon
The Moon has a residual atmosphere whose pressure is 3×10-15 bar.
Its entire atmosphere weighs only 10 tons.
Earth
Earth is the third planet from the Sun.
It is also the first planet from the sun to have a natural satellite.
Titan
In June 2027, NASA plans to send a Dragonfly mission to Titan.
It is to reach the surface of the moon in 2036 and, among other things, analyze the organic compound ...
Cosmos
About 4.6 billion years ago, a cloud of gas and dust existed at the site of the Solar System.
According to one theory, the balance of this cloud was upset by the explosion of a nearby supernova. ...
NASA
The first NASA Space Shuttle, Columbia, at the end of its final flight on February 1st, 2003, disintegrated upon reentry, which resulted in the death of all seven members of the crew.
Liver
It is present in all vertebrates.
Earth
The Earth's core is a ball with a diameter of 6940 km - so it is larger than Mars.
It is made of an alloy of nickel and iron with small admixtures of other elements. It reaches temperatures from 5500 to 6500 degrees Celsius and the pressure there is 13.5 million atmospheres.
Titan
It can hide life beneath its surface.
While its surface may be barren, it is likely that beneath its icy surface there may be an ocean tha ...
Ganymede
Ganymede orbits Jupiter at a distance of 1.070.400 kilometers. The complete orbit takes 7 days and 3 hours.