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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.

Video: Aeolus timelapse

This timelapse video shows ESA's Aeolus satellite being prepared for liftoff. It includes shots from the cleanroom in France, its arrival by ship in French Guiana, preparations at Europe's Spaceport in Kourou, roll out to the launch pad and, finally, liftoff on a Vega rocket on 22 August 2018.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2OBOb0U

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