Open source mind

Chemistry is for people interested in science, which is not all people.


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Moon is a Germanic word, related to the Latin mensis
Current interpretations of astronomical observations indicate that the age of the Universe is 13.73 (± 0.12) billion years
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
Stars in the main sequence are mainly composed of hydrogen in its plasma state
About three-quarters of the Sun's mass consists of hydrogen, while most of the rest is helium
Earth is the fifth-largest of the eight planets in the Solar System
The Moon is the only celestial body on which human beings have made a manned landing
The Moon is the only celestial body on which human beings have made a manned landing
The average diameter of the Earth is about 12,742 km
The planet formed 4.54 billion years ago
Earth is the fifth-largest of the eight planets in the Solar System
Juipter is the largest planet in the Solar System
The average diameter of the Earth is about 12,742 km
Several mechanisms have been historically proposed for the Moon\'s formation 4.527 ± 0.010 billion years ago
The Sun accounts for about 99.86% of the Solar System's mass
About three-quarters of the Sun's mass consists of hydrogen, while most of the rest is helium
The term Universe may be used in slightly different contextual senses, denoting such concepts as the cosmos, the world, or Natur
The Soviet Union\'s Luna programme was the first to reach the Moon with unmanned spacecraft
Red is the most common color in national flags



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