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Star HOPS - 315
July 28 , 2025
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- Astronomers observed early planet formation around baby star HOPS-315 in the Orion constellation.
- The NASA James Webb Space Telescope and Atacama Large Millimetre/sub-millimetre Array (ALMA) detected rock vapour cooling and forming crystals.
- Crystalline silicates and silicon monoxide gas were found within 2.2 astronomical units (AU) of the star, inside Mercury’s orbit.
- Simulations confirmed temperatures around 1,300 kelvins, where dust begins to vaporise and later recondenses into solid minerals.
- Minerals like forsterite and enstatite matched those seen in primitive meteorites found on Earth.
- The crystals formed in the disc’s rising atmosphere, confirming early solid matter formation.
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