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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.

Astronauts Nick Hague and Anne McClain at the National Air and Space Museum

NASA astronauts Nick Hague and Anne McClain talk about their experiences onboard the International Space Station at the Smithsonian National Air and Space Museum in D.C.

from NASA Image of the Day https://ift.tt/36YaXcC

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