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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.

Starship Mk1 blows its top during testing

SpaceX has been on a roll lately. With the completion of tethered and untethered flight tests with the Starship Hopper, SpaceX founder Elon Musk unveiled the newly completed Starship Mk1 prototype and announced that orbital test flights would commence in a few months. Meanwhile, the Starlink constellation got started with the launch of its first 60 satellites followed by 60 more upgraded versions.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2D8GBH6

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