Maunakea HI (SPX) Jan 10, 2024 -
New data from W. M. Keck Observatory on Maunakea, Hawai?i Island confirms exoplanet WASP-69b, known for its escaping atmosphere, is forming a comet-like tail that is even longer than previously obse
Reimagining Planetary Genesis: Young Disk Observations Challenge Formation Theories focustechnica.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from focustechnica.com Daily Mail and Mail on Sunday newspapers.
Los Angeles CA (SPX) Jan 09, 2024 -
In a significant advancement in our understanding of planetary formation, an international team of astronomers has uncovered ring and spiral structures in exceptionally young planetary disks. This d
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