Ten Simple (But Important) Things To Know About Space.

                                          

SPACE IS COMPLETELY SILENT:

• There is no atmosphere in space, which means that sound has no medium or way to travel to be heard.

THE HOTTEST PLANET IN OUR SOLAR SYSTEM IS 450°C:

• Venus is the hottest planet in the solar system and has an surface temperature of around 450° C.
• Did you know that venus isn't the closest planet to the sun?
• That is Mercury. You would think that mercury would then be the hottest, but Mercury has no atmosphere (which regulates temperature), resulting in big fluctuations.

THE SUN'S MASS TAKES UP 99.86% OF THE SOLAR SYSTEM:

• The sun accounts for 99.86% of the mass in our solar system with a mass of around 330,000 times that of earth.
•  Did you know that the sun is made up of mostly hydrogen (three quarters worth) with the rest of its mass attributted to helium. 
• If the sun had a voice would it be high and squeaky from all that helium?   

ONE MILLION EARTHS CAN FIT INSIDE THE SUN:

• The sun is large enough that approximately 1.3 million earths could fit inside (if squashed in) or Earth retained their spherical shape then 960,000 would fit.
• But can you visualise that number of Earths?

THE SUNSET OF MARS APPEARS BLUE:

• Just as colors are made more dramatic in sunsets on Earth, sunsets on Mars, according to NASA, would appear bluish to human observers watching from Red planet.
• Fine dust makes the blue near the sun's part of the sky much more visibile, while normal daylight makes the Red Planet's familiar rusty color the most perceptible to the human eye.

THERE IS A PLANET MADE OF DIAMONDS:

• There's a planet made of diamonds twice the size of Earth days to complete its day.
• The orbit of venus around the sun is 225 earth days, making a year on venus 18 days less than a day on Venus.