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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's Starship Super-Rocket

Elon Musk Takes the Long View in Glitzy Update on SpaceX's Starship Super-Rocket

SpaceX CEO Elon Musk finally gave us an update on how the development of the Starship and Super Heavy booster is going. During a presentation at the SpaceX Starbase facility in Boca Chica, Texas, Musk showed off a fully stacked up Starship and Super Heavy booster. He said the company is waiting on approval from the FAA and other government agencies to give them the green light to launch the spacecraft sometime in the next few months.

During the presentation, he talked about the challenges of developing the Raptor 2 engine (it tries to melt its combustion chamber) and the plans to construct a second Starbase at Cape Canaveral in Florida. Attendees were also able to see the enormous Mechazilla launch tower, which will catch incoming rockets with its chopstick arms.

Read the full story by Alan Boyle

Thanks!

Fraser Cain
Publisher
Universe Today

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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