![]() “If you have a star forming, that galaxy is still active,” Hassani said. Star formation is a delicate balance of having enough material for new stars to form, and the stellar winds created by young stars blow this material away. It is the process of star formation which makes a galaxy grow and thrive. They’re really just starting to produce new stars and they are really active in the formation of stars,” said Hassani. “The age of these populations is very young. That came with some surprises, as many of the images they were observing showed bright stars that were younger than they were expecting. ![]() For the galaxies imaged so far, the researchers took information about the distribution and warmth of stars and worked out the ages of those stars. The team has so far examined 15 galaxies, out of a total of 19 that they will examine for their project. “The infrared light is really key to tracing the cold and distant universe.” “At 21 micrometers, if you look at a galaxy you will see all of those dust grains heated with light from the stars,” said Hamid Hassani, another of the researchers. As objects get warmer, they give off more infrared light, so Webb’s instruments can see where pockets of warmer dust and gas sit, and how this relates to areas where stars are forming. “In our own galaxy, we can’t make a lot of these discoveries because we’re stuck inside it.”īy using Webb’s infrared instruments, the researchers can look through clouds of dust and gas which could be opaque if viewed in the visible light range. “We’re studying 19 of our closest analogues to our own galaxy,” explained one of the researchers, Erik Rosolowsky of the University of Alberta, in a statement. Researchers are getting their first glimpses inside distant spiral galaxies to see how stars formed and how they change over time, thanks to the James Webb Space Telescope’s ability to pierce the veil of dust and gas clouds. The project, called Physics at High Angular resolution in Nearby Galaxies, or PHANGS, used James Webb to observe several galaxies which are similar to our own Milky Way to see how stars are forming within them. Now, some of the researchers have shared more about the findings and what they mean for our understanding of how galaxies form and evolve. Recently astronomers used the James Webb Space Telescope to look at the structures of dust and gas which create stars in nearby galaxies. “We’re learning as much as we possibly can from Artemis I to ensure we fully understand every aspect of our systems and feed those lessons learned into how we plan for and fly crewed missions,” said senior NASA official Jim Free, adding: “Safely flying crew is our top priority for Artemis II. With much of the Artemis I data now assessed, NASA is clearly feeling positive about the prospects for Artemis II and its plan to launch the mission next year. “Work already is underway to repair damaged components in tandem with planned upgrades in preparation for Artemis II,” NASA said, noting that the damage to the mobile launcher included corrosion to fueling lines, around 60 broken panels and cabinets with instrumentation, and destruction to several elevators and blast shields. While the powerful SLS rocket powered the Orion to orbit flawlessly, the launch caused more damage than expected to the mobile launcher as the vehicle roared away from the ground. “All the spacecraft’s dynamic separation events, such as separation of the launch abort system during ascent and parachute deployment during landing - which involved 375 pyrotechnic devices total - were completed without issue.” ![]() ![]() “Data shows the European-built service module generated 20% more power than initial expectations and consumed about 25% less power than predicted,” NASA said. On the plus side, NASA said the Orion accomplished 161 test objectives during a 25-day round-trip mission that fully demonstrated every aspect of the spacecraft. NASA is also examining an issue with the power system on Orion’s service module, though the agency appears confident it can resolve it in good time for the Artemis II mission. Rovers could explore lava tubes on Mars or the moon using breadcrumbs NASA to reveal Artemis II crew for historic lunar trip NASA may use a ‘space tug’ to decommission the space station ![]()
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