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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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Dark Matter Mystery

Scientists at the Large Hadron Collider (LHC) are continuing their search for dark matter, the elusive substance that makes up about 85% of the universe's mass. While no direct detection of dark matter particles has been made yet, experiments at the LHC and other facilities are narrowing down the possibilities and exploring new theories about the nature of dark matter. Solving the mystery of dark matter is one of the biggest challenges in modern astrophysics.
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