- Jupiter, Venus, Mercury and Mars all were visible within a roughly 6 area of sky in May 2011.
- The period of one revolution of sun around the center of galaxy is known as “Cosmic year”.
- Six of the eight planets of our solar system were known in the lifetime of “Kepler”, the formulator of the “Laws of Planetary Motion”.
- “Make-Make” is the second most massive known dwarf planet in the solar system (after Eris) and the tenth-most massive body observed directly orbiting the sun.
- The Sun makes up more than 99% of the total mass of the solar system.
- With a diameter of 109 times the size the Earth, the Sun makes a really big sphere.
- You could flatten out 11,990 Earths to cover the surface of the Sun.
- At some point, in about 5 billion years from now, the Sun will enter the “Red Giant” phase, where it swells up to consume the inner planets, including Earth (probably).
- The Sun is actually slowly hearing up, becoming 10% more luminous every billion year.
- The universe is made of up of space plasma, the fourth state of matter.