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Space News
Nasa
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Image Credit: Nasa
Roscosmos Spacewalkers Finish External Science Work
- Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner successfully completed a spacewalk of seven hours and 17 minutes.
- They installed an experiment package to monitor celestial x-ray sources and new electrical connector patch panels.
- They were unable to complete their final objective of relocating a control panel for the European robotic arm due to time constraints.
- This was Ovchinin's second spacewalk and Vagner's first, making it the 272nd spacewalk for space station assembly, maintenance, and upgrades.
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Nasa
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Image Credit: Nasa
Perseverance Blasts Past the Top of Jezero Crater Rim
- Perseverance rover blasted past the top of Jezero Crater rim and reached Gross Morne quad, named after a Canadian National Park in Newfoundland.
- From here, the Mars rover will name the targets using locations and features in the national park.
- Perseverance rover captured panoramic images of the great unknown expanse of Mars’ Nili Planum and geological features as far as 35 miles away using its powerful cameras.
- Jezero Crater is potentially some of the most ancient surface on the Red Planet, making this an epic moment in Mars exploration.
- Perseverance rover is already at the upper part of Witch Hazel Hill located on the lower western edge of the Jezero Crater rim.
- The science team is excited about the opportunity to analyze the geology directly beneath the rover's wheels on Witch Hazel Hill, which provides more exposed rock than some of the previous points on the crater rim.
- While Curiosity has been climbing 'Mount Sharp' for 10 years, no extraterrestrial rover has driven out of such a huge crater as Jezero to see a whole new 'continent' ahead.
- Roger C. Wiens, Principal Investigator of SuperCam instrument at Purdue University, expressed his excitement for exploring the potentially ancient surface of Jezero Crater.
- Perseverance rover traveled through several peaks of the Jezero Crater rim like Dox Castle, Pico Turquino, and Faraway Rock before reaching the top of Lookout Hill.
- With the recent progress on the Jezero Crater, Perseverance rover is on its way to exploring a whole new area on Mars which might reveal many new mysteries of the Red Planet.
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Brighter Side of News
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Image Credit: Brighter Side of News
World first: Organic matter and water found on asteroid
- Japan's Hayabusa mission has returned over a thousand tiny particles from asteroid Itokawa, offering unique insights into the chemical reactions that occurred in the early solar system.
- Asteroid Itokawa, an S-type asteroid, and its rubble-pile composition provide an incredibly detailed view into the conditions that shaped the inner solar system.
- Amazon, measuring just 30 micrometres wide, was among these particles and is one of the key subjects of the study.
- Advanced spectroscopy techniques allowed researchers to identify a diverse array of organic materials within Amazon.
- Despite being subjected to temperatures exceeding 600°C, Amazon’s organic materials reveal that primitive compounds likely arrived on Itokawa’s surface after it cooled.
- This evidence suggests that asteroids like Itokawa have experienced dynamic chemical evolution, incorporating water and organic matter from external sources over time.
- Asteroids like Itokawa may hold the keys to unraveling the origins of life.
- The Hayabusa2 mission, which returned samples from the carbon-rich asteroid Ryugu, provides an opportunity to compare organic chemistry across different asteroid types.
- By analyzing these materials, scientists hope to uncover patterns that link asteroid chemistry to the origins of life on Earth.
- Each discovery brings us closer to connecting the dots and expanding our understanding of the universe’s potential to foster life.
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Nasa
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Image Credit: Nasa
Gateway: Wired for Deep Space
- Thales Alenia Space is working on Gateway, humanity's first space station around the Moon.
- HALO (Habitation and Logistics Outpost) is one of four Gateway modules where astronauts will live, conduct science, and prepare for missions to the lunar South Pole region.
- HALO, provided by Northrop Grumman and Thales Alenia Space, completed testing in Italy and is expected to arrive in the United States in 2025.
- Northrop Grumman will integrate HALO with Gateway's Power and Propulsion Element for launch on a SpaceX Falcon Heavy rocket.
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Digitaltrends
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Image Credit: Digitaltrends
Celebrating a white Christmas — martian style
- The European Space Agency (ESA) has released an image of a white Christmas on Mars captured by its Mars Express spacecraft.
- The image, taken in June 2022, shows an area in Mars' southern hemisphere covered in layers of snow and ice.
- The warming sun causes ice sublimation, resulting in bursts of gas jetting through the surface and dark dust falling back in a fan-shaped pattern.
- The image can be viewed in 3D with a pair of 3D glasses on the ESA's website.
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Nasa
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Image Credit: Nasa
New Report Analyzes Long History of NASA Support for Commercial Space
- NASA has published a report highlighting 17 agency mechanisms that have supported the development of the U.S. commercial space sector.
- The report emphasizes NASA's contributions to commercial space growth, including partnerships with companies like SpaceX and Rocket Lab.
- Throughout its history, NASA has nurtured technology, companies, and ideas in the commercial space sector, leading to significant economic contributions.
- NASA's use of commercial capabilities has become the default method for many missions, and the agency continues to encourage commercial space activities.
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Nasa
5d
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Image Credit: Nasa
Five Ways to Explore NASA’s Portfolio of Technologies with TechPort 4.0
- NASA has released TechPort version 4.0, a gateway for exploring NASA's technology community.
- TechPort 4.0 includes features like a new and improved homepage, advanced search capabilities, new grid view, NASA Technology Taxonomy Recommendation (T-Rex), and funding opportunities.
- The new version allows users to search and explore NASA's portfolio of technologies more easily.
- TechPort 4.0 offers a more intuitive interface, customizable search results, and an easier way to access relevant information.
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Universe Today
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Image Credit: Universe Today
Archaeology On Mars: Preserving Artifacts of Our Expansion Into the Solar System
- Anthropologists argue that it’s time to document our Martian artifacts so we can preserve our history.
- Artifacts of the human effort to explore the planet are littered on Mars's surface.
- 14 missions to Mars have left their mark on the red planet in the form of artifacts.
- Other features include rover tracks and rover drilling and sampling sites.
- It's time to take Martian archaeology seriously, say anthropologists.
- There exists no systematic strategy for documenting, mapping, and tracking all heritage on Mars.
- They argue that our spacecraft debris is the archaeological record of our attempt to explore not just Mars but the entire Solar System.
- The authors say there’s a crucial need to preserve Neil Armstrong’s first footsteps on the Moon and the USSR’s Venera 7 mission.
- It will take a lot of work and many discussions to determine what this preservation and future exploration can look like.
- The discussions could begin by acknowledging the emerging archaeological record on Mars.
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Brighter Side of News
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Image Credit: Brighter Side of News
How does the Earth generate its magnetic field?
- Iron in the Earth's core generates Earth's magnetic field which protects the planet from harmful solar radiation and cosmic particles and also influences plate tectonics and mantle convection
- The exact mechanisms driving Earth's magnetic field remain elusive but scientists generally attribute it to the geodynamo effect where the convective movement of electrically charged, molten iron in the outer core produces electrical currents generating the magnetic field
- Understanding this geodynamo mechanism requires detailed knowledge of iron’s properties under extreme conditions including its phase transitions, melting points and transport properties
- To fill the gaps, computational simulations have become indispensable in modeling iron’s behavior at the atomic level
- One recent breakthrough is the integration of spin dynamics with molecular dynamics to analyze interactions between mechanical and magnetic properties of iron under high-pressure and high-temperature conditions
- These simulations revealed the stabilizing effects of magnetic properties on iron’s phases under extreme conditions, which could provide critical insights into the geodynamo effect and Earth’s magnetic field as well as developing innovative technologies
- Seismic wave studies suggest the core contains elements other than iron, which may influence its behavior and addressing these uncertainties will require further refinement of experimental and computational methods
- Combining these approaches could unlock new knowledge about Earth’s interior and its magnetic field, while paving the way for technological breakthroughs inspired by the unique properties of iron
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Nasa
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Image Credit: Nasa
Statistical Analysis Using Random Forest Algorithm Provides Key Insights into Parachute Energy Modulator System
- Energy modulators (EM) are safety-critical components used to control shocks and impulses in a load path, commonly found in parachute systems.
- Random Forest algorithm is used for data classification and can handle large datasets accurately, even with missing values.
- Random forests create decision trees from random samples of data and combine them to make predictions.
- A random forest analysis identified five key variables associated with damage and anomalous behavior in the parachute energy modulator system.
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Popsci
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Image Credit: Popsci
An ‘oddball’ asteroid-comet hybrid dates back 4.6 billion years
- A study published in Astronomy & Astrophysics has made the first-ever detection of the chemical composition of the famous (2060) Centaur Chiron.
- The celestial object, which is famous for its characteristics of both asteroids and comets, has a cloud-like envelope of dust and gas around it which contains both carbon dioxide and carbon monoxide ice, along with carbon dioxide and methane gases.
- The findings will help build understanding of the Centaur class of celestial objects, including their make-up and their relation to our solar system's early days.
- Last year, NASA discovered carbon monoxide and carbon dioxide ice on trans-neptunian objects (TNOs) for the first time, which also highlights the growing interest in understanding celestial objects’ chemical compositions.
- Chiron is an oddity among hybrids of comets and asteroids, with rings of material around it. Studying its gas is revealing the chemical and physical properties at play and enhancing our understanding of Chiron’s interior composition and behaviors.
- The JWST helped the researchers pinpoint the carbon dioxide and carbon monoxide ice alongside carbon dioxide and methane gases in Chiron’s coma.
- TNOs and asteroids don’t have activity like comets or centaurs, and comets are often too thick with gases to study. As a result, the study of Chiron, which does exhibit such activity, is offering valuable insights into the properties at work in the cloud-like envelope around the asteroid-comet hybrid.
- Chiron likely originated from the TNO region and has likely been zipping around our Solar System since it was formed about 4.6 billion years ago.
- The new observations provide additional information about the unique makeup of Chiron, and could pave the way for further research and discoveries into the properties of Centaurs as a whole.
- The team hopes to continue analyzing Chiron’s gases in the future.
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Livescience
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Image Credit: Livescience
James Webb telescope uncovers massive 'grand design' spiral galaxy in the early universe — and scientists can't explain how it got so big, so fast
- The James Webb Space Telescope (JWST) has discovered a grand-design spiral galaxy known as A2744-GDSp-z4.
- This galaxy is exceptionally old and challenges our understanding of galaxy formation.
- Most spiral galaxies are younger, but this galaxy formed when the universe was only about 1.5 billion years old.
- The researchers speculate that the presence of a stellar bar or the merger of two smaller galaxies may have contributed to its formation.
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Universe Today
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Image Credit: Universe Today
Building the Black Hole Family Tree
- Astronomers observed an unusual gravitational chirp known as GW190521, where an 85 solar mass black hole merged with a 66 solar mass black hole to form a 142 solar mass black hole.
- The existence of an 85 solar mass black hole raises questions as black hole mergers we've observed involve stellar mass black holes.
- Black holes in the mass range of 65-130 solar masses shouldn't exist due to pair-instability, but GW190521 suggests the possibility of staged black hole mergers.
- A study suggests that the merger of the black holes in GW190521 likely occurred within the region of an active galactic nucleus, challenging the notion of intermediate mass black holes forming within globular clusters.
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Nasa
5d
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Image Credit: Nasa
Contact Dynamics Predictions Utilizing theNESC Parameterless Contact Model
- The Mars Sample Return (MSR) program requires understanding complex dynamic behavior, including contact modeling.
- Commercial software tools used free parameters for contact modeling, which required numerical verification.
- NASA conducted a study in 2005 to test commercial contact solvers in predicting contact forces in transient dynamic environments.
- The NESC/ASD nonlinear solver was used for NASA SSP CLAs and was utilized in the MSR contact verification work to help define free parameters.
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Medium
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Image Credit: Medium
How I Boosted My Amazon Earnings by $527 Daily
- With the right tools and knowledge, it's possible to create an impressive income stream on Amazon.
- The Brand-New 2024 AI App helped the author boost their Amazon earnings by $527 daily.
- The app automates key aspects of the business, leading to efficient product listing and increased earnings.
- The app's simplicity, community feedback, and optimization insights make it appealing for both beginners and experienced sellers.
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