- Any free-moving liquid in outer space will form itself into a sphere, because of its surface tension.
- Mercury, Venus, earth and Mars are called the inner planets as they are closest to the sun!
- December 21st 1968, was the first time that humans truely left Earth.
- Olympus Mons, a volcano found on Mars, is the largest volcano found in solar system. It is 370 miles (595 km) across and rises 15 miles (24 kmOlympus Mons, a volcano found on Mars, is the largest volcano found in solar system. It is 370 miles (595 km) across and rises 15 miles (24 km
- The space age began on the 4th October 1957
- The one and only satellite that Britain has launched was called Black Arrow
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