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Sols 4222-4224: A Particularly Prickly Power Puzzle This image was taken by Mast Camera (Mastcam) onboard NASA’s Mars rover Curiosity on Sol 4219 (2024-06-19 02:22:26 UTC).

Earth planning date: Friday, June 21, 2024

All our patient waiting has been rewarded, as we were greeted with the news that our drill attempt of “Mammoth Lakes 2” was successful! You can see the drill hole in the image above, as well as the first place we attempted just to the left. The actual drilling is only the beginning – we want to see what it is we’ve drilled. We’re starting that process this weekend by using our laser spectrometer (LIBS) to check out the drill hole before delivering some of the drilled material to CheMin (the Chemistry & Mineralogy X-Ray Diffraction instrument) to do its own investigations.

The next step in a drill campaign is usually to continue the analysis with SAM (the Sample Analysis at Mars instrument suite), which tends to be quite power hungry. As a result, we want to make sure we’re going into the next plan with enough power for that. That meant that even though we’ve got a lot of free time this weekend, with three sols and CheMin taking up only the first overnight, we needed to think carefully about how we used that free time. Sometimes, when the science teams deliver our plans, we’re overly optimistic. At times this optimism is rewarded, and we’re allowed to keep the extra science in the plan. Today we needed to strategize a bit more, and the midday science operations working group meeting (or SOWG, as it’s known) turned into a puzzle session, as we figured out what could move around and what we had to put aside for the time being.

An unusual feature of this weekend’s plan was a series of short change-detection observations on “Walker Lake” and “Finch Lake,” targets we’ve looked at in past plans to see wind-driven movement of the Martian sand. These were peppered through the three sols of the plan, to see any changes during the course of a single sol. While these are relatively short observations – only a few minutes – we do have to wake the rover to take them, which eats into our power. Luckily, the science team had considered this, and classified the observations as high, middle, or low priority. This made it easy to take out the ones that were less important, to save a bit of power.

Another power-saving strategy is considering carefully where observations go. A weekend plan almost always includes an “AM ENV Science Block” – dedicated time for morning observations of the environment and atmosphere. Usually, this block goes on the final sol of the plan, but we already had to wake up the morning of the first sol for CheMin to finish up its analysis. This meant we could move the morning ENV block to the first sol, and Curiosity got a bit more time to sleep in, at the end of the plan.

Making changes like these meant not only that we were able to finish up the plan with enough power for Monday’s activities, but we were still able to fit in plenty of remote science. This included a number of mosaics from both Mastcam and ChemCam on past targets such as “Whitebark Pass” and “Quarry Peak.” We also had two new LIBS targets: “Broken Finger Peak” and “Shout of Relief Pass.” Aside from our morning block, ENV was able to sneak in a few more observations: a dust-devil movie, and a line-of-sight and tau to keep an eye on the changing dust levels in the atmosphere.

Written by Alex Innanen, Atmospheric Scientist at York University

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Jun 21, 2024

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2 min read A Bright New Abrasion

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Mars Exploration Science Goals

Mars holds a very special place in our hearts. Chiefly because of all the other planets in the Solar System Mars is probably the place we are going to find some tantalising clues or maybe even evidence of prehistoric life. NASA Perseverance Rover has been trundling around the Jezero Crater looking for evidence that it was once hospitable to life. To that end it has not only been collecting rock samples but air samples too and scientists can’t wait to get their hands on them. 

The Mars Perseverance Rover is part of NASA’s Mars 2020 mission. It launched on 30 July 2020 and landed in the Jezero Crater successfully on 18 February 2021. The site was picked because it’s a dried up river bed and if there is any evidence of ancient primitive life on Mars, it is a likely location. Perseverance is equipped with a host of instruments including a drone named Ingenuity to survey the planet. 

Mars Perseverence rover sent back this image of its parking spot during Mars Solar Conjunction. Courtesy NASA/JPL-Caltech

One exciting element of the mission is the collection of rock samples as part of the Mars Sample Return Campaign. Twenty four core samples have been collected to date and deposited on the surface ready for collection by a future mission. It’s not just rock samples that have been collected though. Known as ‘headspace’ there is air in the space around the rock samples and it is this that has got scientists excited. 

Not only do the rocks hold secrets about Mars but the atmosphere does too. It’s an atmosphere rich in Carbon Dioxide but is expected to have trace amounts of other gasses  too. Information about the current climate can be gained from the trapped gasses but it’s also possible to learn about the evolution of the atmosphere through analysis of the rocks. There is one particularly important tube that has been filled entirely with gas from the atmosphere. 

Image of the Martian atmosphere and surface obtained by the Viking 1 orbiter in June 1976. (Credit: NASA/Viking 1)

With the sample sat on the surface of Mars potentially for many years, the gas trapped will interact with the rock in the sample tube. It will only be when the tubes are opened up when they arrive back here on the Earth that the interaction will cease. It’s hoped to understand more about the levels of water vapour near the Martian surface. 

It isn’t just the water vapour that is of interest but the levels of trace gas too are of interest. Through analysing the gas samples we can tell if there are gasses like neon, argon and xenon which are non reactive gasses. Because these gasses do not react then there presence in the tube samples may suggest that Mars stated with an atmosphere. We know that it had a much thicker atmosphere in the past but we don’t know whether it has always been there or whether it developed later.  

There are many benefits that will come from analysing the samples even, the prevalence of dust that will help future human exploration. As Justin Simon from NASA’s Johnson Space Center in Houston said “The gas samples have a lot to offer Mars scientists, even those who don’t study Mars would be interested because it will shed light on how the planet forms and evolves.”

Source : Why Scientists Are Intrigued by Air in NASA’s Mars Sample Tubes

The post It’s Not Just Rocks, Scientists Want Samples Mars’s Atmosphere appeared first on Universe Today.

A spinning magnetic wind blows from supermassive black holes, paving the way for more matter to fall into them, scientists say.

Some scientists believe they may be able to find buried liquid water on the Red Planet by studying seismic and magnetic readings to reconstruct the aftermath of marsquakes.

The Gaia space telescope has spotted the dim companions of eight bright stars, suggesting we can expect new glimpses of distant planets.

NASA/Kevin O’Brien

NASA’s SLS (Space Launch System) rocket in the Block 1B cargo configuration will launch for the first time beginning with Artemis IV. This upgraded and more powerful SLS rocket will enable SLS to send over 38 metric tons (83,700 lbs.) to the Moon, including NASA’s Orion spacecraft and its crew, along with heavy payloads for more ambitious missions to deep space. While every SLS rocket retains the core stage, booster, and RS-25 engine designs, the Block 1B features a more powerful exploration upper stage with four RL10 engines for in-space propulsion and a new universal stage adapter for greater cargo capability and volume. 

As NASA and its Artemis partners aim to explore the Moon for scientific discovery and in preparation for future missions to Mars, the evolved Block 1B design of the SLS rocket will be key in launching Artemis astronauts, modules or other exploration spacecraft for long-term exploration, and key components of  Gateway lunar space station.

2 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) A steel model of a hypersonic vehicle and sensor in front of a window in a wind tunnel labeled the 20 inch Mach 6 Tunnel.

Vehicles that travel at hypersonic speeds fly faster than five times the speed of sound. NASA studies the fundamental science of hypersonics to understand it better and applies this understanding to enable point-to-point and space access hypersonic vehicles. These vehicles would use airbreathing engines, which utilize oxygen in the atmosphere. In the long term, NASA envisions reusable hypersonic vehicles with efficient engines for routine flight across the globe.

Vision: Enable routine, reusable, airbreathing hypersonic flight 

Mission: Advance core capabilities and critical technologies underpinning the mastery of hypersonic flight to support U.S. supremacy in hypersonics 

Approach: Conduct fundamental and applied research to enable a broad spectrum of hypersonic systems and missions 

Artist rendering of a high-speed point-to-point vehicle.NASA Langley

In the coming decade, NASA envisions the development of enabling technologies for a first-generation reusable airbreathing vehicle capable of cruising at hypersonic speeds. This work supports potential emerging markets in high-speed flight.

By 2050, NASA envisions the development of a next-generation reusable hypersonic vehicle that could serve as the first stage in a two-stage space access vehicle.

Unique Hypersonics Facilities and Expertise

NASA maintains unique facilities, laboratories, and subject matter experts who investigate fundamental and applied research areas to solve the challenges of hypersonic flight. The Hypersonic Technology project coordinates closely with partners in industry, academia, and other government agencies to leverage relevant data sets to validate computational models. These partners also utilize NASA expertise, facilities, and computational tools. Partnerships are critical to advancing the state of the art in hypersonic flight.

Read More About the Hypersonic Technology Project Facebook logo @NASA@NASAAero@NASA_es @NASA@NASAAero@NASA_es Instagram logo @NASA@NASAAero@NASA_es Linkedin logo @NASA Explore More 2 min read Hypersonics Technical Challenges Article 4 days ago 2 min read Hypersonic Research Topics Article 4 days ago 2 min read High-Speed Market Studies Article 7 days ago Keep Exploring Discover Related Topics

Technology Transfer & Spinoffs

Small Business Innovation Research (SBIR) / Small Business Technology Transfer (STTR)

Manufacturing and Materials

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Details Last Updated Jun 21, 2024 EditorJim BankeContactShannon Eichornshannon.eichorn@nasa.gov Related Terms

• Hypersonic Technology
• Advanced Air Vehicles Program

2 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) Launch of the Hypersonic International Flight Research Experimentation Program (HIFiRE) Flight 2 sounding rocket, a joint NASA-Air Force Research Laboratory flight experiment, May 1, 2012.Credit: AFRL

Technical Challenges (TCs) are finite-duration research and development endeavors supporting the strategic goals of NASA. The Hypersonic Technology project’s Technical Challenges include estimation of uncertainty for hypersonic research problems and vehicle systems, testing controls for switching engines mid-flight, and researching more efficient fuel combustors for large ramjets, which will be needed by future commercial high-speed planes.

Uncertainty Quantification

This Technical Challenge is complete!
TC-1: System-Level Uncertainty Quantification Methodology Development and Validation: NASA developed and validated a system-level uncertainty propagation methodology to guide uncertainty-informed decision making by identifying fundamental research areas that will reduce the system performance uncertainty.

Learn more about Uncertainty Quantification on TechPort

Turbine-Based Combined Cycle

TC-2: Turbine-Based Combined Cycle Mode Transition Technology Development: The Combined Cycle Mode Transition challenge demonstrates autonomous control and establishes performance/operability assessment methodologies for future reusable hypersonic propulsion systems that use turbine engines at slow speeds while transitioning to scramjets for high-speed operations. This challenge addresses the technology barrier of propulsion system mode transition via ground tests.

Learn more about Combined Cycle on TechPort

Improved Combustor Scaling Laws for Hypersonics

TC-3: Development of Improved Combustor Scaling Laws for Dual-Mode Ramjets: To improve current engine performance and enable engine scale up to fully reusable vehicle scales 100 times larger, NASA will develop and deliver mathematical models and associated validation test data with quantified uncertainty that support the design of high-speed combustors inclusive of green fuels. NASA will demonstrate such capability by reducing the length of the state-of-the-art cavity flameholder by 25 percent (10 percent threshold, 25 percent goal cavity length reduction relative to a state-of-the-art baseline.)

Learn more about Combustor Scaling on TechPort Read More About the Hypersonic Technology Project About the AuthorShannon Eichorn

Shannon Eichorn is the Strategic Engagement Lead for NASA’s Advanced Air Vehicles Program. She is a former test engineer in supersonic wind tunnels and former engineer managing facilities, such as the Aeroacoustic Propulsion Lab, Glenn Extreme Environments Rig, and Creek Road Cryogenics Complex.

Facebook logo @NASA@NASAAero@NASA_es @NASA@NASAAero@NASA_es Instagram logo @NASA@NASAAero@NASA_es Linkedin logo @NASA Explore More 2 min read Hypersonic Technology Project Overview Article 4 days ago 2 min read Hypersonic Research Topics Article 4 days ago 2 min read High-Speed Market Studies Article 7 days ago Keep Exploring Discover Related Topics

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Details Last Updated Jun 21, 2024 EditorJim BankeContactShannon Eichornshannon.eichorn@nasa.gov Related Terms

• Hypersonic Technology
• Advanced Air Vehicles Program

2 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater) A wireframe image of an aircraft being designed.NASA

The Hypersonic Technology project is divided into four research topic areas. The first research topic is system-level design, analysis, and validation, which explores the impacts of technologies on vehicle performance. The second and third topics focus more specifically on propulsion technologies and vehicle technologies enabling hypersonic flight. The fourth topic area explores material technology that can survive and be reused in high-temperature hypersonic flight.

System-Level Design and Analysis

The System-Level Design, Analysis, and Validation research topic (RT-1) investments are focused on computational tool development and validation for hypersonic propulsion and vehicle system analysis methods including uncertainty quantification. RT-1 coordinates and performs definitive systems analysis studies to clarify the potential benefits of hypersonic vehicles and technologies for both high-speed civilian travel and space access and will use these studies to drive a technology portfolio focused on reusability, affordability, and reliability.

An illustration of a hypersonic vehicle.NASA Propulsion Technologies

The Propulsion Technologies research topic (RT-2) focuses on turboramjet, ramjet, integrated combined-cycle, dual-mode, and scramjet propulsion systems and associated propulsive mode transitions, combustor operability, fuels, controls, and sensors. RT-2 develops computational fluid dynamic technologies to enable predictive simulations of these systems.

Hypersonic model test in the 8-Foot High Temperature Tunnel at NASA Langley.NASA Vehicle Technologies

The Vehicle Technologies research topic (RT-3) investments focus on understanding aerodynamic and aerothermodynamic phenomena, such as high-speed boundary-layer transition and shock-dominated flows, to further technologies that improve aerodynamic performance as well as reduce aerodynamic heating.

A model of a hypersonic vehicle and sensor in NASA’s 20-Inch Mach 6 Air Tunnel in the Langley Aerothermodynamic Lab.NASA High Temperature Materials

The High Temperature Durable Materials research topic (RT-4) investments focus on advanced propulsion and vehicle materials research. Due to the operating conditions of hypersonic vehicles, most of the structures and materials are shared between propulsion and vehicle components, which include aeroshell, control surface, leading edge, propulsion, and sealing concepts. RT-4 examines the design and evaluation of potential structure and material concepts through component development and testing under relevant environments. In addition, because of the extreme environments the materials and structures must endure, RT-4 also includes development of advanced thermal and structural measurement methods.

Read More About Hypersonic Technology About the AuthorShannon Eichorn

Shannon Eichorn is the Strategic Engagement Lead for NASA’s Advanced Air Vehicles Program. She is a former test engineer in supersonic wind tunnels and former engineer managing facilities, such as the Aeroacoustic Propulsion Lab, Glenn Extreme Environments Rig, and Creek Road Cryogenics Complex.

Facebook logo @NASA@NASAaero@NASA_es @NASA@NASAaero@NASA_es Instagram logo @NASA@NASAaero@NASA_es Linkedin logo @NASA Explore More 3 min read NASA Launches Rocket to Study Hypersonic Aircraft Article 2 years ago 1 min read AETC Hypersonic Facilities Article 8 years ago 2 min read Rocket Launch Scheduled March 21 from NASA’s Wallops Flight Facility Article 2 years ago Keep Exploring Discover Related Topics

Technology Transfer & Spinoffs

Small Business Innovation Research (SBIR) / Small Business Technology Transfer (STTR)

Manufacturing and Materials

Why Go to Space

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Details Last Updated Jun 21, 2024 EditorJim BankeContactShannon Eichornshannon.eichorn@nasa.gov Related Terms

• Hypersonic Technology
• Advanced Air Vehicles Program

The long-term economic effects of tropical cyclones far outweigh the direct damages from high winds and flooding, with local incomes declining for years after the storm hits

The long-term economic effects of tropical cyclones far outweigh the direct damages from high winds and flooding, with local incomes declining for years after the storm hits

A SpaceX Falcon Heavy is scheduled to launch NOAA's GOES-U weather satellite on June 25. Here's how to watch live.

The Earth-sized storm on Jupiter known as the red spot was thought by many to have been first observed in 1665, but it turns out that may have been an entirely different enormous storm, with today's storm dating back only to 1831

The Earth-sized storm on Jupiter known as the red spot was thought by many to have been first observed in 1665, but it turns out that may have been an entirely different enormous storm, with today's storm dating back only to 1831

The Crab Nebula has always fascinated me, albeit amazed me that it doesn’t look anything like a crab! It’s the result of a star that exploded at the end of its life back in 1054 CE, leaving behind what is known as a supernova remnant. Back then the explosion would have been visible to the naked eye, even in daytime. It was thought that the supernova that led to the cloud was from a less evolved star with a core made from oxygen, neon and magnesium. Recent studies by the James Webb Space Telescope reveals that it may actually be the core collapse of an iron rich star. 

The Crab Nebula can be found in the constellation Taurus measuring 11 light years across. Deep inside the cloud, which expands at a rate of 1,500 kilometres per second, lies a rapidly rotating neutron star known as a pulsar. It emits a beam of electromagnetic radiation that sweeps across space much like a lighthouse sweeping out across the ocean. It has been the subject of many studies to learn about the dynamics of stellar evolution. 

Previous studies have attempted to understand the total kinetic energy of the original explosion based upon the velocity of the expanding cloud. The data suggested that the supernova was relatively low energy so the progenitor star was likely to be in the range of 8 to 10 times the mass of the Sun. If it had been more massive it would have experienced a more violent supernova which would be revealed in higher velocity of the expanding gas cloud. But there was a problem. 

The Fred Lawrence Whipple Observatory’s 48-inch telescope captured this visible-light image of the Pinwheel galaxy (Messier 101) in June 2023. The location of supernova 2023ixf is circled. The observatory, located on Mount Hopkins in Arizona, is operated by the Center for Astrophysics | Harvard & Smithsonian. Hiramatsu et al. 2023/Sebastian Gomez (STScI)

The observations of the Crab Nebula, particularly the high rotational speed of the pulsar, seemed to conflict with current supernova theory. In the model for lower mass stars like that which was the progenitor star of the Crab Nebula, the oxygen in the core ignites as the core collapses. This process does not have sufficient energy to generate such a fast rotating pulsar. 

A team of astronomers have addressed this curiosity using MIRI (Mid-Infrared Instrument) and NIRCam (Near-Infrared Camera) onboard the James Webb Space Telescope to collect data from the Crab Nebula. The team was led by Tea Temim from the Princeton University in New Jersey. They report that the gas composition of the cloud suggests the star may have been more evolved with some iron in the core which could have led to a higher energy supernova than previously thought.

Artist impression of the James Webb Space Telescope

With Webb’s sensitive infrared instruments, the iron and nickel emission lines can be seen with more clarity than ever before. Studying the bright lines in the spectrum of the nebula has allowed a much more reliable estimate of the iron and nickel ratio to be deduced. They found it was a higher percentage compared to the Sun which was expected for a more energetic supernova. 

The results are promising but the readings were taken from two small regions of the nebula so to rule out variations across the entire 11 light years further readings are needed. If the data from Webb is representative from the entire nebula then it’s possible one of the mysteries of the nebula may finally be solved.

Source  : Investigating the Origins of the Crab Nebula With NASA’s Webb

The post Something’s Always Been Off About the Crab Nebula. Webb Has Revealed Why! appeared first on Universe Today.

Lynn Conway, a trans woman and advocate for LGBTQ rights, was underappreciated and often underrecognized for her work in chip design

The rotation of Earth's inner core began to slow down more than a decade ago, altering the length of our days by fractions of a second.