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SLS Update SLS will rollback to the VAB. Will deconflict with Crew-5 and aim for mid-late October, pending resolutions. NASA may attempt to fix the leaky umbilical connection at the pad before rolling back to the Vehicle Assembly Building. Doing it at the pad could allow them to test the connection with cryogenics before returning to the Vehicle Assembly Building. Live Stream @EverythingScience

I'm told that Space Launch System program officials will recommend a rollback to the VAB to investigate the hydrogen leak. The Artemis I mission management team will consider this recommendation at their afternoon meeting, and publicly announce a decision at 20:00 UTC. Source: @SciGuySpace

Artemis I has scrubbed its second attempt. Post scrub coverage continues: https://www.youtube.com/watch?v=E3iGlIdRHBg Source: @NASASpaceflight

Fueling operations of the SLS rocket were going well this morning until a hydrogen leak was found in the engine cavity. Propellant loading of the liquid hydrogen tank has been stopped at 8 percent full while the launch team assesses. Why does the SLS rocket use liquid hydrogen fuel if it leaks all the time? Well, it is very efficient, energy density-wise. But most importantly, it's what space shuttle designers used 50 years ago, and Congress mandated that the SLS rocket use those same engines. Source: @SciGuySpace

Fueling operations of the SLS rocket were going well this morning until a hydrogen leak was found in the engine cavity. Propellant loading of the liquid hydrogen tank has been stopped at 8 percent full while the launch team assesses. Why does the SLS rocket use liquid hydrogen fuel if it leaks all the time? Well, it is very efficient, energy density-wise. But most importantly, it's what space shuttle designers used 50 years ago, and Congress mandated that the SLS rocket use those same engines. Source: @SciGuySpace

⁣Frank Drake, pioneer in the search for alien life, dies at 92 ⁣Drake’s contributions to science were numerous. A founder of the scientific field engaged in the search for extraterrestrial intelligence (SETI), he developed the Drake Equation, a framework for estimating the number of possible civilizations in the Milky Way galaxy. He made the first observations of Jupiter’s radiation belts, and he was one of the first astronomers to measure Venus’s searing surface temperature and the greenhouse effect of its thick atmosphere. Drake served as the director of the Arecibo radio observatory in Puerto Rico. He was a mentor and inspiration to generations of astronomers and astrophysicists. Article @EverythingScience

Stem cell biologists create new human cell type for research Professor Vincent Pasque and his team at KU Leuven have managed to generate a new type of human cell in the lab using stem cells. The new cells closely resemble their natural counterparts in early human embryos. As a result, researchers can now better study what happens just after an embryo implants in the womb. Article @EverythingScience

Wow

NASA’s Webb Takes Its First-Ever Direct Image of Distant World For the first time, astronomers have used NASA’s James Webb Space Telescope to take a direct image of a planet outside our solar system. The exoplanet is a gas giant, meaning it has no rocky surface and could not be habitable. The image, as seen through four different light filters, shows how Webb’s powerful infrared gaze can easily capture worlds beyond our solar system, pointing the way to future observations that will reveal more information than ever before about exoplanets. “This is a transformative moment, not only for Webb but also for astronomy generally,” said Sasha Hinkley, associate professor of physics and astronomy at the University of Exeter in the United Kingdom, who led these observations The exoplanet in Webb’s image, called HIP 65426 b, is about six to 12 times the mass of Jupiter, and these observations could help narrow that down even further. Read More @EverythingScience

The launch of #Artemis I is no longer happening today as teams work through an issue with an engine bleed. Teams will continue to gather data, and we will keep you posted on the timing of the next launch attempt. https://blogs.nasa.gov/artemis/ Source: @NASA 📅 Next Attempt: September 2nd, 16:48 UTC

Powerful solar flare lashes Earth, causes radio blackout across Europe and Africa Article @EverythingScience

Prelaunch Checks Read more about the mission here: http://nasaspaceflight.com/news/artemis Source: @NASA_Nerd

Aiming for the Moon: Artemis I countdown begins for historic flight Article @EverythingScience