Nature Hub

  From:- Space.com     By  Julian Dossett   Edited by: Amal Udawatta A photo from the Subaru Telescope in Hawaii.   (Image credit: T. Currie/Subaru Telescope, UTSA) While our ability to view distant worlds with advanced telescopes has come a long way in a short time, we can still only photograph a tiny fraction of the planets throughout our cosmos with the technology we have today. However, astronomers in Hawaii just spotted a pair of exciting discoveries — a huge exoplanet and a brown dwarf — using Japan’s  Subaru Telescope , which sits atop Mauna Kea, a dormant volcano on the Big Island of Hawaii. These new celestial discoveries represent the first findings from OASIS (Observing Accelerators with SCExAO Imaging Survey), a program that relies on the Subaru Telescope, as well as data from other sources. The  exoplanet  that the astronomers found is called HIP 54515 b. It's 271 light-years away from Earth and orbits a star in the Leo cons...

   From - Space,com ,    By   Stefanie Waldek     Edited by  Amal Udawatta An artist's representation of WASP-18b, an exoplanet some 400 light-years from Earth.   (Image credit: NASA/JPL-Caltech (K. Miller/IPAC)) Astronomers have produced the first-ever three-dimensional map of a planet outside our  solar system  — WASP-18b — marking a major leap forward in exoplanet research. Using the  James Webb Space Telescope , researchers applied a new technique called 3D eclipse mapping, or spectroscopic eclipse mapping, to track subtle changes in various light wavelengths as WASP-18b moved behind its  star . These variations allowed scientists to reconstruct temperature across latitudes, longitudes and altitudes, revealing distinct temperature zones throughout the planet's atmosphere. "If you build a map at a wavelength that water absorbs, you'll see the water deck in the atmosphere, whereas a wavelength that water does not ab...