Dugong The dugong (Dugong dugon), from the Malay duyung, is a species of herbivorous marine mammals with a streamlined body, living on the coasts of the Indian Ocean, the Western Pacific Ocean and the...
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4 Minutes
6 Minutes
Inner and Outer Planets | Internal and External Planets
Inner and Outer Planets “Inner Solar System” and “Outer Solar System” are two subdivisions of the Solar System. The planets in our solar system are classified as inner and outer planets. Understanding the difference...
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9 Minutes
Minerals, Stones, Crystals | Lists and Clasifications
List of Minerals This list provides an overview of minerals. Minerals can be organized, mainly according to their chemistry, into the following classes: CLASS Consisting of: Carbonates The Carbonates, the Nitrates and the Borates...
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7 Minutes
Saturn V launched Apollo 11, putting man on the Moon
Saturn V (Saturn Five) Saturn V, known as Saturn 5, is a super heavy space launcher developed in the 1960s by the US space agency, NASA, for the Apollo lunar program. Used between 1967...
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8 Minutes
Apollo 11 first space program men landed on the Moon in 1969
Apollo 11 Apollo 11 is a mission of the American Apollo space program during which, for the first time, men landed on the Moon, Monday, July 21, 1969. It was the fifth manned flight...
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12 Minutes
ISS Everything you always wanted to know about the International Space Station
International Space Station The International Space Station (ISS), the only orbital station in service, represents a major step in the knowledge and mastery of this fascinating world by allowing humans to live and work...
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6 Minutes
Crew Dragon by SpaceX taking over the crews of the International Space Station
Crew Dragon The Crew Dragon (Dragon 2) is a space vehicle developed by the company SpaceX on behalf of the American space agency, NASA, which since 2020 has been taking over the crews of...
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10 Minutes
Mercury | Planet’s characteristics, distance to Earth, color, composition, peculiarity
Planet Mercury Mercury is the closest planet to the Sun and the least massive in the Solar System. Its distance from the Sun is between 0.31 and 0.47 astronomical units (i.e. 46 and 70...
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22 Minutes
Mars | Planet’s characteristics, distance to Earth, color, composition, peculiarity
Planet Mars Mars is the fourth planet in increasing order of distance from the Sun and the second in increasing order of size and mass. Its distance from the Sun is between 1.381 and...
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14 Minutes
Venus | Planet’s characteristics, distance to Earth, color, composition, peculiarity
Planet Venus Venus is the second planet in the Solar System in order of distance from the Sun, and the 6th largest in both mass and diameter. It owes its name to the Roman...
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19 Minutes
Earth | Planet’s characteristics, distance to Earth, color, composition, peculiarity
Planet Earth Earth is the third planet in order of distance from the Sun and the fifth largest in the Solar System in terms of both mass and diameter. Moreover, it is the only...
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13 Minutes
Neptune | Planet’s characteristics, distance to Earth, color, composition, peculiarity
Planet Neptune Neptune is the eighth planet in order of distance from the Sun and the farthest known from the Solar System. It orbits the Sun at a distance of about 30.1 AU (4.5...
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9 Minutes
Uranus | Planet’s characteristics, distance to Earth, color, composition, peculiarity
Planet Uranus Uranus is the seventh planet in the Solar System in order of distance from the Sun. It orbits around it at a distance of about 19.2 astronomical units (2.87 billion kilometers), with...
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13 Minutes
Saturn | Planet’s characteristics, distance to Earth, color, composition, peculiarity
Planet Saturn Saturn is a gigantic frozen ball of gas, surrounded by rings spinning at breakneck speed. A true gem of the solar system and often referred to as “The Lord of the Rings”,...
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12 Minutes
Planet Jupiter | characteristics, distance to Earth, color, composition, peculiarity
Planet Jupiter Jupiter is a giant gas planet. It is the largest planet in the Solar System, larger and more massive than all the other planets combined, and the fifth planet by its distance...
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8 Minutes
Planets by Size | Order of Planets from Biggest to Smallest
Classification of Planets by Size From Biggest to Smallest The solar system has 8 planets, each of them is sorted in this classification planets by size according to its diameter in kilometers and miles,...
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4 Minutes
Solar System a World Full of Surprises | Composition, Formation and Evolution
Solar system: what is it? We call the Solar System, all the stars subject to the Sun’s gravitational field (our star alone represents 99.8% of the total mass of the Solar System!). The Solar...
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13 Minutes
Chernobyl (Ukraine) History and Disaster of Nuclear Contamination
Chernobyl (Tchernobyl) Chernobyl is a city in Kiev Oblast, Ukraine. It is located 96 km north of Kiev. The city of Chernobyl is known for the disaster at the Chernobyl nuclear power plant, although this...
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