.......................AMAZING!!!!!!........................

• MERCURY is the fastest planet. Mercury zooms around the Sun in just 88 days, at an incredible 173,000kph. That makes it faster than any space rocket ever invented.
• OLYMPUS MONS situated in Mars is the largest volcano in Solar System which is about 600km across and towers over 25 km high.
• You could fit two EARTHS inside THE GREAT READ SPOT, which is about 40,000 km across.
• GANYMEDE is the largest moon in the SOLAR SYSTEM.
• CALLISTO is the most cratered world in the SOLAR SYSTEM.
• Summer at South Pole of URANUS lasts for 42 years.
• TRITON is one of the coldest place ever recorded!!! The temperature is -236 degrees Celsius.
• PLUTO  is smaller than a country. At 2,360 km across, it is smaller than US or RUSSIA.The first living creature in space was a Russian dog, called Laika. She made a 7 day journey in the space capsule SPUNTIK 2 in November 1957.
• NEUTRON STARS are super-heavy!!! They may be 20 km across, but they weigh 50 times more than planet EARTH!!!