8legs: Canadian space agency

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#1 out of 4

24m ago

Two space telescopes used infrared and visible light to image Saturn, revealing layered atmospheric motion.
Webb images expose the 'ribbon wave' and a long-lived storm trace linked to the 2010–2012 Great Springtime Storm.
The observations show a six-sided jet stream at Saturn’s north pole that has remained stable for decades.
The pole is headed into winter and will be dark for about 15 years, delaying future clear views of the hexagon.
Infrared data highlight particles high in Saturn’s atmosphere and potential auroras connected to the planet’s magnetic field.
Saturn’s rings appear differently in infrared and visible light, helping map their composition and changes over time.
Hubble and Webb provide a long-term record of Saturn’s weather, forming a broader picture of its evolution.
The study emphasizes Saturn as a natural lab for understanding fluid dynamics under extreme conditions.
The article notes the collaboration involves NASA, ESA, CSA, STScI, and researchers like Amy Simon and Michael Wong.
The report highlights that this may be the last clear look at the hexagon for years due to changing seasons.
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#2 out of 4

Artemis II will send a four-astronaut crew around the Moon, testing systems without landing.
The crew includes Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen, with Glover as pilot and Koch as mission specialist.
The mission will rely on the Space Launch System and Orion spacecraft to reach lunar orbit and test life-support and docking capability.
Artemis II uses a free-return trajectory that could bring the crew back to Earth without engine burns if needed.
Artemis II comes after Artemis I, which deployed CubeSats and tested heat shields during an uncrewed lunar flyby.
NASA aims to study life-support and docking to prepare for future lunar landings under Artemis IV and V.
The Orion crew module can support four astronauts for missions up to 21 days and will splash down in the Pacific Ocean.
Artemis II budget concerns note a high per-launch cost, with the inspector general citing billion-level expenses.
If Artemis II succeeds, it could accelerate future missions returning astronauts to the Moon’s surface.
The program plans to practice rendezvous with lunar landers from SpaceX and Blue Origin in later Artemis missions.

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#3 out of 4

9h ago

Artemis II will launch from Kennedy Space Center with a four-astronaut crew aboard Orion for a 10-day lunar journey.
Former NASA scientist Dr. John DeWitt says the ascent will briefly feel like pressure due to rocket acceleration.
The Orion spacecraft, powered by NASA’s Space Launch System, will carry crew and cargo directly to the Moon in a single launch.
Artemis II will test Orion’s operation in deep space and support future crewed lunar and Mars missions.
NASA lists five main priorities for Artemis II, including crew readiness, system operations, and data collection.
The mission goals include sustaining the crew, ensuring system readiness, and retrieving data for future exploration.
The article notes Artemis II will not launch before April 1 and will feature a live briefing cadence with content updates.
The Orion capsule maintains Earth-like conditions (oxygen, humidity, temperature) for crew comfort in orbit.
NASA aims to demonstrate readiness for future crewed missions to the Moon and Mars.
The report references Dr. DeWitt's NASA Johnson Space Center background as context for the pressure explanation.

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#4 out of 4

NASA outlines a fixed, pre-selected menu for Artemis 2 designed for a self-contained vehicle with no resupply.
Each Artemis 2 container holds about two to three days of food, with options available during the mission.
Food must be ready-to-eat or easily hydrated using Orion's water dispenser during flight phases.
NASA officials say the menu balances calories, hydration, and nutrition while accommodating crew preferences.
The menu includes flexibility, with up to two flavored beverages per day for the crew.
The Artemis 2 crew will demonstrate how to eat on the way to the moon without a fridge or stove.
NASA aims for a self-contained menu that can function during various flight phases, including launch and landing.
The article notes Artemis 2 will have 189 unique food or drink items flying on the mission.
The mission menu includes diverse options like hot sauces, tortillas, and desserts to suit preferences.
Artemis 2 aims to balance practicality with crew morale by giving astronauts input on their meals.

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