New Simulation Reveals the Churning Interiors of Giant Stars

By Brian Koberlein - July 30, 2023 12:12 PM UTC | Stars
Stellar fusion happens at a star's core, where the enormous temperatures and pressures fuse hydrogen atoms into helium, releasing radiation. Waves of turbulent convection generated in the core can take hundreds of thousands of years to ripple outward through the stars' layers, finally reaching the surface. A new simulation shows waves generated deep inside stars, more massive than the Sun, make their way to the surface and affect the star's brightness.
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Chinese Scientists Complete a Concept Study for a 6-Meter Space Telescope to Find Habitable Exoplanets

By Brian Koberlein - July 29, 2023 02:25 PM UTC | Exoplanets
With JWST safely in space, researchers are designing the next generation of space telescope that could Earth-sized worlds orbiting sunlike stars. Chinese scientists released a concept paper this week for the Tianlin mission, a 6-meter UV/Optical/IR space telescope, which could begin operations in 2045. This telescope would search for rocky planets in the habitable zones around nearby stars and search for biosignatures using direct imaging. The team estimates they could obtain the spectrum of 20 candidate exoplanets in the first five years of operation.
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Clumps Around a Young Star Could Eventually Turn Into Planets Like Jupiter

By Brian Koberlein - July 28, 2023 12:29 PM UTC | Exoplanets
New images from the European Southern Observatory show a young star surrounded by dusty clumps that could collapse and create giant planets like Jupiter. The star is V960 Mon, located about 5,000 light-years away in the constellation Monoceros. The star brightened suddenly in 2014, leading astronomers to conclude it's assembling spiral arms in its protoplanetary disk. The new observations show that these arms are fragmenting into clumps, with masses similar to giant planets.
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