Monday, 14 August 2017
Tuesday, 8 August 2017
The Moon was probably made 4.5 billion years ago when a large object hit the Earth and blasted out rocks that came together to orbit round the Earth. The Moon is much smaller than the Earth. It is airless, waterless and lifeless. The gravity of the Moon, causes two high tides on the Earth every day.
The first person to walk on the Moon was the American astronaut, Neil Armstrong. He stepped out of his space craft, the Eagle, on 21 July 1969 and said these famous words, “That’s one small step for man, one giant leap for mankind”.
Tuesday, 25 July 2017
The sun is the largest star in our solar system, however there are many stars like it in the wider universe. The earth is just the right distance from the sun that our planet is not too hot or too cold. The light from the sun takes 8 minutes to reach earth and gives life to plants. Astronauts will never be able to land on the sun as it reaches 5500 degrees celsius - 100x hotter than humans can stand.
The sheer size of the sun means that its gravitational pull forces all the planets in our solar system to orbit around it. Born 5 billion years ago, the sun has been producing heat and light for a very long time.