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16y ago

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What are 2 discoveries that Edwin Hubble made which changed astronomy?

Edwin Hubble demonstrated that The Milky Way (our galaxy) is not the only galaxy that exists, but that there are many more galaxies in the universe. Also, he examined the wavelength of light coming from various galaxies, and determined that the further away it was, the greater the shift of wavelength into the red end of the spectrum. This is called 'Hubble's Law' and meant that the whole universe was expanding and not just that objects were moving within it.


What 2 factors keep artificial satellites such as the Hubble space Telescope in orbit around the earth?

It only takes one, which is fortunate because there only IS one.It's gravity.


What Are What are facts about Edwin Hubble?

Edwin Powell Hubble discovered that our galaxy was not the extent of the universe. Hubble was also the one to first realize that the universe is expanding. The Hubble Space Telescope was named in his honor.


What are three instruments scientist use to observe things not see able with human eye?

Scientists use microscopes to observe objects at a very small scale, such as cells and microorganisms. Telescopes are used to observe celestial bodies and phenomena in space that are not visible to the naked eye. Spectrometers are used to analyze the light emitted or absorbed by objects, helping scientists gather information about their composition and properties.


What is a renewable energy resouce that is used to power the hubble space telescope?

HST runs on electricity supplied by massive Power Supply Units, which get their electricity from the 2 huge Solar Panels on either side of the spacecraft.