Neptune-sized planets exhibit a wide range of compositions and densities, depending on factors related to their formation and evolution history, such as the distance from their host stars and atmospheric escape processes. They can vary from relatively low-density planets with thick hydrogen–helium atmospheres1,2 to higher-density planets with a substantial amount of water or a rocky interior with a thinner atmosphere, such as HD 95338 b (ref. 3), TOI-849 b (ref. 4) and TOI-2196 b (ref. 5). The discovery of exoplanets in the hot-Neptune desert6, a region close to the host stars with a deficit of Neptune-sized planets, provides insights into the formation and evolution of planetary systems, including the existence of this region itself. Here we show observations of the transiting planet TOI-1853 b, which has a radius of 3.46 ± 0.08 Earth radii and orbits a dwarf star every 1.24 days. This planet has a mass of 73
NIRISS Instrument On Webb Maps An Ultra-Hot Jupiter s Atmosphere – Eurasia Review eurasiareview.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurasiareview.com Daily Mail and Mail on Sunday newspapers.
Montreal, Canada (SPX) Jun 01, 2023 -
There s an intriguing exoplanet out there - 400 light-years out there - that is so tantalising that astronomers have been studying it since its discovery in 2009. One orbit for WASP-18 b around its
WASP-18 b, shown in an artist's concept, is a gas giant exoplanet 10 times more massive than Jupiter that orbits its star in just 23 hours. Researchers
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