Tech & Science : NASA milestone: James Webb creates chemical profile of exoplanet atmosphere

Final preparations underway for NASA's Moon rocket launch

  Final preparations underway for NASA's Moon rocket launch After two failed attempts this summer, NASA was busy Monday completing final preparations for the launch of its new mega Moon rocket, now scheduled for early Wednesday from Florida. The first launch of the Space Launch System rocket, the most powerful ever designed by NASA, is set for Wednesday at 1:04 am local time (0604 GMT), with a possible launch window of two hours. © Jim WATSON Engineers work on the Tail Service Mast Umbilical of the Artemis I unmanned lunar rocket as it sits on launch pad 39B at NASA's Kennedy Space Center Countdown has already begun at the storied Kennedy Space Center, where the orange and white behemoth awaits its maiden flight

The James-Webb dumbbell telescope is known for capturing breathtaking images of space. Now the JWST has shown the first molecular and chemical profile of the atmosphere of an exoplanet.

Der Exoplanet Wasp 39b. © Sadoharu / Shutterstock The Exoplanet Wasp 39b. At the beginning of summer, NASA discovered clear references to carbon dioxide in the atmosphere of the exoplanet WASP 39B thanks to the James Webb Weldraeskop (JWST). According to the space organization, the telescope has now recorded more CO2 as well as carbon monoxide, sodium, potassium and water vapor. As with the detection of CO2 in the atmosphere of WASP 39B, the JWST was based on the transit of the planet around his star and how chemicals influenced the light wavelengths recognized by the telescope in its atmosphere. When light meets different elements, you reflect different wavelengths that can recognize the instruments of the telescope with the highest precision. Mile stone for NASA as part of the full chemical profile of the exoplanet was also detected by sulfur dioxide. According to researcher Shang-Min Tsai from the University of Oxford, this is a concrete evidence of photochemistry, a number of chemical reactions triggered by light that meets the atmosphere of a planet. The earth's ozone layer was also created by photochemistry. "I see this as a really promising perspective to drive our understanding of the atmospheres of exoplanets," said Tsai. This reports The Register . [Crosslinks IDS = "1507094.1513680.1512021"] For NASA, the discovery of photochemistry brings completely new opportunities. It leads to improvements in NASA's modeling skills, which "will help build up the technological know-how in order to interpret potential signs of habitability on other exoplanets". In addition, the proof was again provided how well the observatory works in practice. Due to the discoveries around WASP 39B, NASA seems to be ready for further examinations of exoplanets.

Allison Langdon's departure from Today creates Twitter-storm .
Allison Langdon's exit from Channel Nine's Today show has created an outpouring of positive sentiment online. Fans filled their Tweeter feed with gushing praise for the 43-year-old as she departed her breakfast hosting gig on Friday to anchor A Current Affair.The emotional response from viewers for Allison contrasts wildly with the quiet departure controversial presenter Lisa Wilkinson made from Today back in 2017. © Provided by Daily Mail Allison Langdon's exit from Channel Nine's Today show has created an outpouring of sentiment online.

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