Open source mind

Hydrogen is the chemical element with atomic number 1


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Earth is the third planet from the Sun
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
1000 meters equals 1 kilometers
Current interpretations of astronomical observations indicate that the age of the Universe is 13.73 (± 0.12) billion years
The planet formed 4.54 billion years ago
About three-quarters of the Sun's mass consists of hydrogen, while most of the rest is helium
The Sun has a diameter of about 1,392,000 kilometers
Astronomy is not the same as astrology, although 83% of people don\'t know that.
Chemistry is for people interested in science, which is not all people.
The Universe comprises everything we perceive to exist physically, the entirety of space and time, and all forms of matter and e
Naturally occurring elemental hydrogen is relatively rare on Earth
Several mechanisms have been historically proposed for the Moon\'s formation 4.527 ± 0.010 billion years ago
Earth is the third planet from the Sun
There are nearly 7 Billion people on planet Earth
The Solar System consists of the Sun and those celestial objects bound to it by gravity
The Sun is the star at the center of the Solar System
The pull of gravity at the Moon\'s surface is about 17 percent of that at the Earth\'s surface
Juipter is the largest planet in the Solar System
The Sun has a diameter of about 1,392,000 kilometers



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