Jupiter is bigger than all the other planets combined.
254
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Summer on Uranus lasts for 21 years.
358
Only 55% of Americans know that the sun is a star.
986
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221