Why sea water is salty
The seas and oceans have been and are objects of study by the scientific community. And it is that much...
Hemispheres of the Earth
The word hemisphere is a Greek term used to refer to any half of the earth. There's a lot…
What is groundwater
There are several types of water in the world, depending on its source, composition, location, etc. The oceans, rivers and lakes…
Why the seasons occur
The four seasons of the year, spring, summer, autumn and winter, are four fixed periods of each year divided according to conditions...
What is volcanic lightning?
The volcanic lightning is one of the most intriguing phenomena on the part of the human being. And it is taking place...
How does a volcano go out?
Since time immemorial, human beings have always wanted to act on volcanoes. One of the questions I always ask...
What is a nilometer?
In prehistoric times, agriculture depended on water falling from the sky. Centuries later, humans began to dominate…
International Space Station
The International Space Station (ISS) is a research center and space interpretation laboratory in which…
Tropical night and equatorial night
With climate change, average temperatures are increasing throughout the planet and during the summer it is noticing…
How to know if it is a meteorite
Meteorites are those large rocks that are capable of penetrating the Earth's atmosphere and end up…
How do stars form
Throughout the universe we see all the stars that form the celestial vault. However, don't…