Neil Armstrong and Edwin Buzz Aldrin were the first men to walk on the moon who went In Apollo 11. Jeff Bezos, the creator of Amazon, launched his Blue Origin New Shepard spaceship into orbit earlier this week. For a 10-minute trip aboard his company's spaceship, the billionaire was joined by his brother, Oliver Daemen, 18, from the Netherlands, and an 82-year-old aviation pioneer from Texas.

The first rocket launch from Cape Canaveral in the has taken place and it was entirely automated. Scientists say the impact of rocket engine emissions has been underestimated in the past, but as the frequency of launches rises and larger rockets are utilised, the impact is expected to increase. The flight was completely unmanned and there were no official personnel on board.


Chemical reactions are triggered by classic rocket launches, which degrade the ozone layer. Liquid hydrogen and liquid oxygen were used to fuel Blue Origin's rocket. The propellants are far more environmentally friendly than traditional rocket fuel. However, there is also a dispute over this. According to a scientist at the university of Colorado, Boulder, the major emissions from New Shepard would be "water and some minor combustion products, with almost little CO2." However, some experts believe that water vapour emissions from individual launches can have a significant influence on the mesosphere and ionosphere.

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