―
As of 2008, there are also five dwarf planets:
Pluto,
Ceres,
Eris,
Makemake &
Haumea.
Moon landing
―
Even though space travel didn’t happen until the 1960’s,
rockets have been around for a long time. The
first rocket was
invented by the Chinese around year
1200. Rockets are the
oldest of all engines.