- Ever wondered how many earths could fit inside the sun (which is an average-sized star by the way)? Try ten million!
- If volcanoes like Vesuvius, Hawaii’s Mauna Loa blow your mind, then consider the one on Mars… its 374 miles across, which is the size of Arizona, and at 16 miles high is three times the height of Mount Everest!
- Feel like taking a walk on Jupiter, Saturn, Uranus or Neptune? Good Luck! They have no solid surface.
- If you think your school library is quiet, try going to space. Sound waves need a medium to travel through, and since there is no atmosphere in space, it will always be eerily silent.
- Space is closer than you think. Beginning at an invisible boundary 100km above the Earth – called the Karman Line – you could theoretically drive your car upwards and be in space in less than an hour.
- Every single year an asteroid the size of a car comes hurtling towards earth, but thankfully, it burns up in our atmosphere before it can do any harm!
- Ever watched your footprint in the sand get washed away by the tide? Well as there is no atmosphere on the moon, there is no wind or water either, meaning a footprint sticks around for approximately 100 million years.
- Talking of sand… there are more stars in the universe than there are grains of sand on earth (about a billion trillion).
- Think solar power is lame? Well, more energy from the sun hits Earth every hour than the planet uses in a year, we just haven’t figured out how to capture it effectively.
- It may have a reputation as the red planet, but the sunset on Mars appears blue.
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