Open source mind

Hydrogen is the chemical element with atomic number 1


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The Moon is the only celestial body on which human beings have made a manned landing
Hydrogen is the lightest and most abundant chemical element, constituting roughly 75 % of the Universe\'s elemental mass
Earth is the third planet from the Sun
The Solar System formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago
Hydrogen is represented by the symbol H
The Sun accounts for about 99.86% of the Solar System's mass
Current interpretations of astronomical observations indicate that the age of the Universe is 13.73 (± 0.12) billion years
The Sun is the star at the center of the Solar System
The Solar System consists of the Sun and those celestial objects bound to it by gravity
The Union of Soviet Socialist Republics (USSR) was a constitutionally socialist state that existed in Eurasia from 1922 to 1991
The Moon's diameter is 3,474 kilometres
The Universe comprises everything we perceive to exist physically, the entirety of space and time, and all forms of matter and e
The Sun accounts for about 99.86% of the Solar System's mass
Earth is the third planet from the Sun
Raw horse meat is a popular food in Japan.
1000 meters equals 1 kilometers
The planet formed 4.54 billion years ago
Naturally occurring elemental hydrogen is relatively rare on Earth
The average diameter of the Earth is about 12,742 km
Juipter is the largest planet in the Solar System



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