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Space News
Nasa
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Image Credit: Nasa
Hubble Captures an Edge-On Spiral with Curve Appeal
- This NASA/ESA Hubble Space Telescope image showcases the edge-on spiral galaxy UGC 10043.
- The side view of the galaxy obscures its spiral arms, with prominent dust lanes forming thick clouds.
- Despite the dust, active star-forming regions are visible behind the dark clouds.
- The galaxy's bulge, larger than the disk, suggests material siphoning from a nearby dwarf galaxy and a warped appearance.
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Nasa
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Image Credit: Nasa
Crew Packs Science for Exposure, Studies Immune System, and Preps for Spacewalk
- The Expedition 72 crew prepared a science experiment for placement outside the International Space Station.
- NASA Flight Engineer Nick Hague conducted cellular immunity research processing blood samples.
- NASA astronauts relaxed and prepared for the robotic move of the Euro Materials Aging experiment.
- Roscosmos Flight Engineers continued preparations for a spacewalk and conducted a cardiac study.
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Livescience
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Image Credit: Livescience
Scientists spot 'L-shaped structures' and 'weird things' near monster black hole in epic new Hubble telescope images
- Scientists used the Hubble Space Telescope to probe a quasar 2.5 billion light-years away.
- The images revealed mysterious 'blobs' of different sizes and an L-shaped filamentary structure near the black hole at the quasar's center.
- Hubble's data suggests that the black hole drives the quasar's brightness by devouring remnants of smaller satellite galaxies.
- Further study and analysis are needed to conclusively identify the blobs and structures observed.
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Medium
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Image Credit: Medium
Are we part of something bigger? — interfacts
- The Earth, in proportion, might resemble an electron orbiting the Sun.
- We might be part of an infinite system of nested worlds, each containing its own reality.
- This perspective not only makes us feel small but also connects us to something infinitely larger.
- Follow interfacts for more!!
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Nasa
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Key Considerations When Developing Avionics for Safety-Critical Systems
- NASA has published guidance on designing safety-critical avionics systems for crewed spaceflight.
- The guidance addresses the need for additional rigor and scrutiny in avionics design for crewed spacecraft.
- One key aspect is specifying the failure hypothesis, which includes categorizing failure modes and mitigating catastrophic effects.
- The failure hypothesis must also include assumptions about relative arrival times of failures and the ability for ground operators to intervene.
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Nasa
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Image Credit: Nasa
6DOF Check Cases
- The NESC released benchmark Earth-based check-cases in 2015 to promote consistent and accurate flight simulations for 6DOF aero/spacecraft models.
- Recently, the NESC expanded this effort to include Lunar-based check-cases to support new lunar exploration initiatives.
- The check-cases provide a measure of validation for simulations supporting Human Landing Systems.
- Utilizing benchmarking check-cases improves simulations, reduces errors, and builds confidence in solutions.
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Nasa
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Image Credit: Nasa
Sols 4391-4392: Rounding the Bend
- NASA's Mars rover Curiosity is continuing its mission on Mars, navigating through challenging terrain.
- On sol 4391, Curiosity focused on imaging and a drive due to unsafe rocks preventing contact science.
- The rover's drive was planned to avoid obstacles such as rocks and maintain a clear line of communication with Earth.
- On sol 4392, Curiosity conducted atmospheric observations and let the rover choose its own target.
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Medium
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Image Credit: Medium
Why Facebook and ChatGPT Experienced Outages Today: All Update
- Meta's services, including Facebook, Instagram, and WhatsApp, experienced a global outage due to a server misconfiguration during a routine update.
- Users faced login problems and experienced delays in sending messages.
- Meta's team swiftly resolved the issue, and most services were restored within hours.
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Nasa
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Image Credit: Nasa
Helium Conservation by Diffusion Limited Purging of Liquid Hydrogen Tanks
- The NASA Engineering and Safety Center (NESC) has developed an analytical model that predicts diffusion between two gases during piston purging of liquid hydrogen (LH2) tanks.
- The model helps explain dramatic helium savings seen in a recent Kennedy Space Center (KSC) purge and is applicable to future helium purges of the Space Launch System Core Stage LH2 tanks.
- The purge was diffusion limited and could be modeled, leading to the conclusion that the flow rate should be increased until the onset of turbulent mixing and the purge should not be stopped to allow additional diffusion to occur.
- A binary gas sensor was used to provide rapid real-time monitoring of the purge gas ratio, making the piston purging successful.
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Nasa
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Image Credit: Nasa
Considerations for Using Autonomous Flight Termination Softwarein Crewed Launch Vehicles
- Autonomous flight termination systems (AFTS) are being progressively employed onboard launch vehicles to replace ground personnel and infrastructure needed to terminate flight or destruct the vehicle should an anomaly occur.
- Key distinctions exist between crewed and uncrewed AFTS, including design philosophy, fault tolerance, and unique requirements for crew safety and human rating standards.
- The AFTS software architecture consists of Core Autonomous Safety Software (CASS), Wrapper, and Mission Data Load (MDL), with guidelines for their use and recommendations for developmental use.
- To achieve human-rating certification for AFTS software, guidelines such as those outlined in NASA documents and safety considerations for repurposing commercially available flight termination systems should be followed.
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Universe Today
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Image Credit: Universe Today
Early Earth's Oceans of Magma Accelerated the Moon's Departure
- About 620 million years ago, a day on Earth was only 22 hours long, and the Moon was at least 10,000 km closer than it is now.
- A new study suggests that early Earth had lava tides instead of water tides, which accelerated the Moon's departure from Earth.
- The simulation models show that the Moon's distance would have increased by 25 Earth-radii in just 10,000 to 100,000 years.
- The idea of lava tides has implications for exoplanets, as planets close to their sun with lava oceans could become tidally locked much faster.
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Nasa
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Image Credit: Nasa
Material Compatibility of Common Aerospace Metals in MMH/MON-3
- The NESC evaluated material compatibility of some common aerospace metals in monomethylhydrazine (MMH) and nitrogen tetroxide (MON-3).
- Static general corrosion and electrochemistry testing was conducted, evaluating different factors such as processing forms, heat treatment, propellant water content, and exposure duration.
- Corrosion-rate data showed rates on the order of 1 x 10–6 inch per year, much lower than previously documented values.
- Corrosion testing at multiple short-term durations is recommended to determine the need for longer-duration testing.
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Arstechnica
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Image Credit: Arstechnica
NASA’s boss-to-be proclaims we’re about to enter an “age of experimentation”
- Jared Isaacman, NASA's next administrator nominee, endorses a vision of radical departures from the agency's current practices.
- He emphasizes commercial investment, a thriving space economy, and a willingness to go fast and take risks.
- Isaacman appreciates the efforts of the commercial space industry in investing their own money in pursuit of their belief in the future of space.
- However, there is a need to tap into the commercial expertise that is currently being left untapped.
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Brighter Side of News
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Image Credit: Brighter Side of News
Next-gen nuclear fusion-powered rocket burns hotter than the Sun
- Pulsar Fusion, a UK-based company is creating a new era of space exploration driven by advancements in nuclear fusion technology.
- The company aims to construct the largest and the most practical nuclear fusion rocket engine at present.
- The 8-meter fusion chamber aims to ignite in 2027 and generate temperatures hotter than the sun’s core, propelling the rocket’s exhaust at speeds exceeding 500,000 miles per hour.
- Pulsar Fusion has formed a strategic partnership with Princeton Satellite Systems to predict and control the super-hot plasma's behavior that is the core of the innovation.
- If successful, this fusion rocket technology could revolutionize space travel, enable interstellar travel and address global energy challenges.
- Recent successful test of the groundbreaking super-fast space engine marks a significant step forward in space exploration and technology.
- The engine ten times larger than conventional models was fired at the University of Southampton on January 29th.
- Pulsar’s new engine enables the utilization of larger satellites in space presenting a unique challenge due to its design for operation solely in the vacuum of space.
- Richard Dinan, Founder of Pulsar, expressed optimism about the future implications of this achievement.
- Pulsar Fusion’s groundbreaking work on fusion rocket technology represents a significant step forward in our quest to explore the cosmos and address our energy needs.
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