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Space News
Arstechnica
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Image Credit: Arstechnica
Rocket Report: ULA has a wild idea; Starliner crew will stay in orbit even longer
- A Japanese space startup, Space One, experienced a second failed rocket launch as its rocket, named Kairos, spiraled out of control and self-destructed about three minutes after liftoff.
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Nasa
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Image Credit: Nasa
Station Science Top News: Dec. 20, 2024
- Simulation of solidification in metal alloys requires reliable data on their thermophysical properties.
- Researchers propose comparing predictive models with experimental outcomes to assess these data.
- Techniques for measuring thermal diffusion in mixtures have been presented, with applications in mineralogy and geophysics.
- Researchers validate the use of ferrofluid technology in spacecraft thermal control switches for increased reliability and lifespan.
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Livescience
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Image Credit: Livescience
Ancient volcanic ash on Mars could offer new clues in search for extraterrestrial life
- Debris from ancient volcanic eruptions on Mars could offer new clues in the search for alien life.
- A study suggests that the newly discovered rock type found on Mars was likely volcanic ash deposited billions of years ago.
- The rocks were found at a landing site for a future Mars rover mission, indicating they may have originated from a distant explosive volcano.
- Scientists believe that the mineral-rich rocks beneath the volcanic ash could potentially preserve signs of life.
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Nasa
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Image Credit: Nasa
2024: NASA Armstrong Prepares for Future Innovative Research Efforts
- NASA Armstrong Flight Research Center prepares for missions on supersonic flights, next-generation aircraft, human space exploration, climate change, and next innovation.
- 2024 started with the public debut of X-59, a quiet supersonic research aircraft by NASA.
- The air quality across Asia was studied in the first half of 2024 to understand the air people breathe.
- NASA Armstrong had a team working on X-66 simulator to run real-life scenarios in a safe environment.
- A camera pod with sensors was designed to advance autonomous aviation's computer vision and flew this pod at NASA's Kennedy Space Center.
- NASA joined international researchers to investigate pollution sources and collected air measurements all over several countries.
- To improve firefighter safety, NASA, US Forest Service, and industry tested a cell tower in the sky to enable real-time communication between firefighters and command posts.
- Researchers of NASA C-20A collected data and images of Earth's surface to understand global ecosystems, natural hazards, and land surface changes.
- NASA Armstrong hosted its first Ideas to Flight workshop, where the subject matter experts shared how to accelerate research ideas and technology development through flight.
- NASA Armstrong's innovative research efforts support NASA's mission to explore the secrets of the universe for the benefit of all.
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Nasa
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Image Credit: Nasa
Lab Work Digs Into Gullies Seen on Giant Asteroid Vesta by NASA’s Dawn
- NASA-funded scientists used lab equipment to mimic conditions on Vesta, which is a giant asteroid, to explain the origins of deep channels or gullies on its surface.
- Hypothesis holds that gullies are formed due to dry debris flows after meteoroid impacts.
- The recent study provided evidence that gullies on Vesta are formed due to sudden and brief flows of water that carved gullies and deposited fans of sediment after an impact on the asteroid.
- The scientists used a test chamber at JPL called DUSTIE to recreate Vesta-like conditions that will occur after a meteoroid impact.
- The team experimented with brines which are a little over an inch deep and the gullies on Vesta that are about yards to tens of yards deep thus needing a longer time to refreeze than the liquids experimented with.
- Pure water froze almost instantly, while briny liquids stayed free for at least an hour due to the presence of table salt.
- The researchers were also able to recreate the lids of frozen material on brines that formed after flow of liquids.
- The lids stabilize the liquid beneath them, protecting it from being exposed to the vacuum of space and help to make the liquids flow longer before freezing again.
- Dawn spacecraft traveled to the main asteroid belt between Mars and Jupiter, to orbit Vesta for 14 months and Ceres for almost four years.
- Recent research offers insights into processes on Ceres but focuses on Vesta, where ice and salts may produce briny liquid when heated by an impact.
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Earthsky
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Image Credit: Earthsky
Chinese rocket disintegrates over the Caribbean
- Chinese rocket disintegrates over the Caribbean
- Meteor cameras in Puerto Rico captured multiple angles of the event
- Rocket identified as CZ-4B launched from China in August 2024
- Rocket disintegrated due to atmospheric drag at an altitude of 70 miles
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Nasa
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Image Credit: Nasa
Station Crew Works Science Installs and Spacewalk Cleanup Before Holidays
- Science hardware installations were completed by the Expedition 72 crew members aboard the International Space Station.
- Astronauts installed the European Enhanced Exploration Exercise Device in the Columbus laboratory module, which provides advanced capability for workouts in microgravity.
- Crew members also conducted installation work in the Tranquility module, outfitting the Nanoracks Bishop airlock with hardware.
- The cosmonauts slept in following a spacewalk, during which they installed a celestial X-ray investigation and performed other tasks.
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Nasa
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Image Credit: Nasa
NASA Runs X-59 Engine with Maximum Afterburner for First Time
- NASA's X-59 quiet supersonic research aircraft completed its first maximum afterburner test.
- The full-power test validates the additional power needed for meeting the testing conditions of the aircraft.
- The X-59 aims to make sonic booms quieter and is expected to have its first flight in 2025.
- The afterburner test demonstrated the engine's ability to operate within temperature limits and with adequate airflow for flight.
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Nasa
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Image Credit: Nasa
NASA Science Payload to Study Sticky Lunar Dust Challenge
- The NASA Science Payload called RAC-1 is designed to study how lunar dust reacts to different types of materials.
- RAC-1 will expose 15 sample materials to the lunar environment to determine how tenaciously the dust sticks to each one.
- The data collected will help NASA and its industry partners test and upgrade spacecraft, spacesuits, and equipment for lunar missions.
- The aim is to build more robust and durable hardware in preparation for continued exploration of the Moon under the Artemis campaign.
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Armaghplanet
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Image Credit: Armaghplanet
Christmas Day broadcast with the Archbishops of Armagh
- The Archbishops of Armagh filmed their Christmas message at Armagh Observatory and Planetarium.
- The message will be broadcast on Christmas Day at 12.10pm on RTÉ One television and 1.05pm on RTÉ Radio One.
- The programme will feature carol singing by a choir from Armstrong Primary School and St Patrick’s Primary School.
- Armagh Observatory, founded in 1790, is one of Ireland’s leading centres for astronomical research and education.
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Universe Today
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Image Credit: Universe Today
IceCube Just Spent 10 Years Searching for Dark Matter
- The IceCube Neutrino Observatory in Antarctica has spent 10 years searching for dark matter.
- Neutrinos, which are difficult to observe, are the target of the IceCube project.
- No excess neutrinos have been found from Earth, suggesting no evidence of trapped dark matter.
- The team hopes that future upgrades to the IceCube Observatory may reveal more promising results.
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Knowridge
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Image Credit: Knowridge
What makes brown dwarfs so weird
- Brown dwarfs are unique objects in the universe, falling between the size of a planet and a star.
- They don't generate their own energy through nuclear fusion, but emit radiation from their leftover heat.
- The largest brown dwarfs are similar in appearance to red dwarfs, while the smallest ones can only be detected using infrared telescopes.
- Brown dwarfs can briefly partake in a fusion reaction, converting deuterium into Helium-3, but eventually cool off and continue to dim.
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Nasa
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Image Credit: Nasa
25 Years Ago: STS-103, The Hubble Servicing Mission-3A
- On December 19, 1999, the third servicing mission to the Hubble Space Telescope (HST) occurred during the STS-103 mission.
- The seven-member U.S. and European crew conducted three lengthy and complex spacewalks to service and upgrade the telescope.
- The astronauts restored the facility to full functionality and redeployed Hubble with greater capabilities than ever before.
- The discovery after launch in 1990 that its primary mirror suffered from a flaw called spherical aberration disappointed scientists who could not obtain sharp images.
- Thanks to Hubble's on-orbit servicing, NASA devised a plan to correct the telescope's optics during the first planned repair mission in 1993.
- A second servicing mission in 1997 upgraded the telescope's capabilities until the next mission planned for three years later.
- The third mission was split into missions 3A and 3B after three of the telescope's six gyroscopes failed in 1997, 1998, and 1999.
- During STS-103, the four astronauts in rotating teams of two conducted three lengthy and complex spacewalks.
- The Hubble Space Telescope continues to operate today, far exceeding the five-year life extension expected from the last of the servicing missions in 2009.
- Joined in space by the James Webb Space Telescope in 2021, the two instruments together continue to image the skies across a broad range of the electromagnetic spectrum.
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Nasa
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Image Credit: Nasa
NASA Study Shows Ferns Facilitate Recovery from Environmental Disaster
- NASA-supported scientists have suggested an updated framework for the role of ferns in environmental recovery from disaster.
- Ferns may act as facilitators that ease the way for other plants and animals to re-establish themselves in a damaged landscape.
- The study examines how a biosphere recovers from major upheaval, using what scientists call a ‘facilitative’ framework rather than the long-held ‘competition-based’ framework.
- Ferns are often one of the first plants to re-establish in areas affected by large-scale upheaval events.
- Unlike many other vascular plants, ferns do not flower or seed. Instead, they reproduce via spores.
- The team proposes that, rather than out-competing other species, ferns act as facilitators for ecosystem recovery by stabilizing the ground, enhancing properties of the soil, and mediating competition between other organisms.
- Ferns provide critical information to better understand the fossil record and Earth before humans which is of interest to astrobiology and exobiology.
- NASA’s Space Biology program has supported experiments to study how plants adapt to space with the expectation that knowledge gained can lead to ways by which crops can be cultivated for fresh food.
- “Ferns were able to completely transform Earth’s biosphere following the devastation of the K-Pg [Cretaceous–Paleogene] extinction event.
- The study was published in the journal BioScience.
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Nasa
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Image Credit: Nasa
NASA, Notre Dame Connect Students to Inspire STEM Careers
- High school students in Indiana are collaborating with NASA's Glenn Research Center and the University of Notre Dame to contribute to research on developing quieter, more fuel-efficient aircraft engines.
- The collaboration aims to inspire students' interest in STEM careers.
- The students visited Notre Dame to witness the operation of the Advanced Noise Control Fan, a NASA-owned test rig for studying quieter aircraft engine technology.
- The students also used 3D printers to fabricate parts for the open rotor test fan.
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