Mysterious

“One of a Kind” Massive Triple Star System Detected

Artist’s interpretation of HD 98800, a quadruple-star system located 150 light-years away in the constellation TW Hydrae. Bin Liu and Alejandro Vigna-Gomez suggest that the more massive tertiary-star system TIC 470710327 could have started in a similar configuration – two binary systems with one of them eventually merging into one, bigger star. TIC 470710327 is located very close to “Cassiopeia”. Credit: NASA/JPL-Caltech/UCLA

Can Moons Have Their Own Moons?

Moons are amazing natural satellites that orbit planets and other objects in space. While most moons orbit planets, some moons also orbit asteroids and Kuiper belt objects.

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