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Massive Stars and their approximate Size

Astronomers have found massive stars in the early universe, primarily located in distant galaxies that formed shortly after the Big Bang. These regions are often studied through advanced telescopes capable of observing very distant light, such as the Hubble Space Telescope and the upcoming James Webb Space Telescope. In terms of size, these monster stars can have diameters ranging from about 100 to over 300 times that of our Sun. The Sun’s diameter is approximately 1.4 million kilometers (about 864,000 miles), so these massive stars could be approximately 140 million to over 420 million kilometers (about 87 million to 261 million miles) in diameter.
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SpaceX and CO2

SpaceX is Hoping to Turn Atmospheric CO2 Into Rocket Fuel

SpaceX is still building and testing its Starship prototypes, and we could see them fly to orbit in 2022. Each rocket is enormous and contains a huge volume of methane fuel for propellant that'll add tonnes of carbon dioxide into the atmosphere with each launch. Elon Musk recently announced that SpaceX would attempt to use a chemical process to extract carbon dioxide out of the atmosphere and use this to manufacture methane at the rocket launch site. Although the process works, nobody's ever tried making it at this scale.

Read the full story by Matt Williams


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