Sols 4202-4204: Sticking Around

Earth planning date: Friday, May 31, 2024

Our most recent drive delivered us, as planned, right alongside ‘Whitebark Pass.’ This last drive was only about 9 metres, but Curiosity has been doing a lot of travelling lately and this weekend we’re giving the rover a well-deserved break from driving – but not a break from science! There’s a lot to see at our current location, so we made the decision to stick around a while to take it all in.

The lighter-toned rocks like those of Whitebark pass, which you can see above, are scattered all throughout our workspace and are getting the majority of our attention. The advantage of a nice long weekend plan with no driving is that we have plenty of time to get in contact science, with MAHLI and APXS getting up close with two targets called ‘Gray Peak’ and ‘Snow Lakes.’ ChemCam is joining in with three LIBS targets, ‘Beck Lakes,’ ‘Ten Lakes,’ and ‘Pohono Bridge.’ Mastcam is also taking two large mosaics of Whitebark Pass, looking more at the general topography and texture of the feature as a whole. There’s more than light-toned rocks in this area though – Mastcam will also be taking a look at some nearby bedrock along the channel wall. 

Rocks aren’t the only features of interest here. The drive also put us right next to a rippled sand patch, which we’re taking a look at with both Mastcam and Navcam. Aside from that, the Environmental theme group is taking advantage of staying put this weekend with some of our regular activities, including a number of tau and line of sight observations to look at dust in the atmosphere, a dust devil survey to scan for dust lifting, and several cloud movies. We also have our bi-weekly ChemCam passive sky observation, which gives us an idea of the abundances of oxygen and water vapour in the atmosphere.

Written by Alex Innanen, Atmospheric Scientist at York University

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NASA Launches Second Small Climate Satellite to Study Earth’s Poles

The second of NASA’s PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment) two satellites is communicating with ground controllers after launching at 3:15 p.m. NZST, Wednesday (11:15 p.m. EDT, June 4). Data from these two shoebox-size cube satellites, or CubeSats, will better predict how Earth’s ice, seas, and weather will change in a warming world — providing information to help humanity thrive on our changing planet.  

The CubeSat launched on top Rocket Lab’s Electron rocket from the company’s Launch Complex 1 in Māhia, New Zealand, and follows the May 25 launch of the first PREFIRE CubeSat. After a 30-day checkout period, when engineers and scientists confirm both CubeSats are operating normally, the mission is expected to operate for 10 months.

“By helping to clarify the role that Earth’s polar regions play in regulating our planet’s energy budget, the PREFIRE mission will ultimately help improve climate and ice models,” said Amanda Whitehurst, PREFIRE program executive, at NASA Headquarters in Washington. “Improved models will benefit humanity by giving us a better idea of how our climate and weather patterns will change in the coming years.”

Capitalizing on NASA’s unique vantage point in space, PREFIRE will help understand the balance between incoming heat energy from the Sun and the outgoing heat given off at Earth’s poles. The Arctic and Antarctica act something like the radiator in a car’s engine shedding much of the heat initially absorbed at the tropics back into space. The majority of that heat is emitted as far-infrared radiation. The water vapor content of the atmosphere, along with the presence, structure, and composition of clouds, influences the amount of radiation that escapes into space from the poles.

The PREFIRE mission will give researchers information on where and when far-infrared energy radiates from the Arctic and Antarctic environments into space. The mission also will use its two CubeSats in asynchronous, near-polar orbits to study how relatively short-lived phenomena like cloud formation, moisture changes, and ice sheet melt affect far-infrared emissions over time. The two satellites pass over the same part of Earth at different times of day, giving researchers information on changing conditions.

“Climate change is reshaping our environment and atmosphere in ways that we need to prepare for,” said Brian Drouin, PREFIRE’s deputy principal investigator at NASA’s Jet Propulsion Laboratory in Southern California. “This mission will give us new measurements of the far-infrared wavelengths being emitted from Earth’s poles, which we can use to improve climate and weather models and help people around the world deal with the consequences of climate change.”

Each CubeSat carries an instrument called a thermal infrared spectrometer, which uses specially shaped mirrors and sensors to measure infrared wavelengths. Miniaturizing the instruments to fit on CubeSats required downsizing some parts while scaling up other components.

“Equipped with advanced infrared sensors that are more sensitive than any similar instrument, the PREFIRE CubeSats will help us better understand Earth’s polar regions and improve our climate models,” said Laurie Leshin, director at NASA JPL. “Their observations will lead to more accurate predictions about sea level rise, weather patterns, and changes in snow and ice cover, which will help us navigate the challenges of a warming world.”

NASA’s Launch Services Program, based out of the agency’s Kennedy Space Center in Florida, in partnership with NASA’s Earth System Science Pathfinder Program, is providing the launch service as part of the agency’s Venture-class Acquisition of Dedicated and Rideshare (VADR) launch services contract.

The PREFIRE mission was jointly developed by NASA and the University of Wisconsin-Madison. NASA JPL manages the mission for the agency’s Science Mission Directorate and provided the spectrometers. Blue Canyon Technologies built the CubeSats and the University of Wisconsin-Madison will process the data the instruments collect. The launch services provider is Rocket Lab USA Inc. of Long Beach, California.

To learn more about PREFIRE, visit:

https://science.nasa.gov/mission/prefire/

-end-

Karen Fox / Elizabeth Vlock

Headquarters, Washington

202-358-1600

karen.c.fox@nasa.gov / elizabeth.a.vlock@nasa.gov

Jane J. Lee / Andrew Wang

Jet Propulsion Laboratory, Pasadena, Calif.

818-354-0307 / 626-379-6874

jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov

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Jennifer M. Dooren

Our First Transformer of the Month: Matt Dosberg

It is impossible to pinpoint a single, static definition of what makes a “Digital Transformer.” Although Matt Dosberg’s official title is Digital Transformation and IT Innovation Lead for Goddard Space Flight Center (GSFC), his full contributions to NASA require a lengthier description. He is the nexus for everything under the Digital Transformation (DT) umbrella at GSFC, including digital engineering, AI, data-driven programmatics, data strategy, and more. He serves as liaison to the agency-level DT team and other centers, coordinating across directorates to drive cultural change within the organization, and has sponsored multiple DT events at GSFC, including the center’s first AI Symposium. He strategizes on rolling out proof of concepts and pilots, working toward solutions that address agency-wide barriers to technology readiness and adoption. Dosberg doesn’t just do transformative work—he embodies transformation in an ever-adaptive role.   

In his three and a half years at NASA, Dosberg has impacted the agency beyond quantitative measures. Of course, his formal accomplishments are extensive, including co-leadership positions for the Goddard AI strategy and Goddard Data Strategy Working Group. He works with the GSFC Chief Technologist to co-fund various initiatives for weaving digital technology into next-generation, mission-enabling solutions. However, his commitment to qualitative, ground-level change, impacting the agency through its culture and people, is demonstrated by how he measures success. “You could look at community adoption and engagement,” he says, highlighting his team’s efforts in hosting events and building community around Digital Transformation. “I’m trying to enable teams and empower people to really achieve the best that they can achieve and help transform how we work here at Goddard.”  

Dosberg attributes his team-building skills and service-oriented approach to his experience working at the Department of Homeland Security in US Citizenship and Immigration Services. As a program manager, he led the Digital Innovation & Development team, which worked to transform the asylum and refugee program from paper-based to fully digital processing. “I think that really set me up for success here,” says Dosberg. “That technology background and the experience of going through a successful digital transformation, and the cultural change aspect…all those things are kind of principles and success factors that I brought over to Goddard to lead the DT efforts here.”  

Although Dosberg does not come from explicitly scientific background—he received an undergraduate degree in economics, master’s degree in finance, and MBA—he has always been deeply interested in and curious about technology. In his daily work, he leverages the collaborative capabilities of tools like Microsoft Teams and Mural to aid in brainstorming and soliciting input. When reflecting on the technology he uses to drive transformation within the agency, he highlights his work on DT Catalyst Projects, particularly those aimed at establishing interoperable architecture for managing data. Dosberg sees data as a foundational layer to his work; by developing common tools for accessing, aggregating, and sharing data across the agency, he hopes to strengthen inclusive teaming at an organizational level.  

Dosberg’s dedication is apparent in how thoughtfully he reflects on his past and present experiences as a Digital Transformer. However, his passion truly shines through when he considers the future of Digital Transformation. “There’s real opportunity to transform and change the way that we are working…Jill [Marlowe] and the DT team have done an incredible job on building momentum, getting folks excited, bringing centers together.”  

Although it is difficult to distill the many reasons why Dosberg was selected as the first featured Digital Transformer of the Month, this may be a good place to start: “At the end of the day, I’m just super passionate about the work that NASA does,” he says. “The portfolio is truly inspiring and I’m excited to help position the center to take on new projects, be more efficient, and enable the workforce. That motivates me each day.” 

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Maya L. Kikuchi

NASA to Change How It Points Hubble Space Telescope

After completing a series of tests and carefully considering the options, NASA announced Tuesday work is underway to transition its Hubble Space Telescope to operate using only one gyroscope (gyro). While the telescope went into safe mode May 24, where it now remains until work is complete, this change will enable Hubble to continue exploring the secrets of the universe through this decade and into the next, with the majority of its observations unaffected.

Of the six gyros currently on the spacecraft, three remain active. They measure the telescope’s slew rates and are part of the system that determines and controls the direction the telescope is pointed. Over the past six months, one particular gyro has increasingly returned faulty readings, causing the spacecraft to enter safe mode multiple times and suspending science observations while the telescope awaits new instructions from the ground.

This one gyro is experiencing “saturation,” where it indicates the maximum slew rate value possible regardless of how quickly the spacecraft is slewing. Although the team has repeatedly been able to reset the gyro’s electronics to return normal readings, the results have only been temporary before the problem reappears as it did again in late May.

To return to consistent science operations, NASA is transitioning the spacecraft to a new operational mode it had long considered: Hubble will operate with only one gyro, while keeping another gyro available for future use. The spacecraft had six new gyros installed during the fifth and final space shuttle servicing mission in 2009. To date, three of those gyros remain operational, including the gyro currently experiencing problems, which the team will continue to monitor. Hubble uses three gyros to maximize efficiency but can continue to make science observations with only one gyro. NASA first developed this plan more than 20 years ago, as the best operational mode to prolong Hubble’s life and allow it to successfully provide consistent science with fewer than three working gyros. Hubble previously operated in two-gyro mode, which is negligibly different from one-gyro mode, from 2005-2009. One-gyro operations were demonstrated in 2008 for a short time with no impact to science observation quality.

While continuing to make science observations in one-gyro mode, there are some expected minor limitations. The observatory will need more time to slew and lock onto a science target and won’t have as much flexibility as to where it can observe at any given time. It also will not be able to track moving objects closer than Mars, though these are rare targets for Hubble.

The transition involves reconfiguring the spacecraft and ground system as well as assessing the impact to future planned observations. The team expects to resume science operations again by mid-June. Once in one-gyro mode, NASA anticipates Hubble will continue making new cosmic discoveries alongside other observatories, such as the agency’s James Webb Space Telescope and future Nancy Grace Roman Space Telescope, for years to come.

Launched in 1990, Hubble has more than doubled its expected design lifetime, and has been observing the universe for more than three decades, recently celebrating its 34th anniversary. Read more about some of Hubble’s greatest scientific discoveries.

Learn more about NASA’s Hubble Space Telescope on the agency’s website:

https://www.nasa.gov/hubble

Resources

Media Contact:

Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov

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NASA Astronauts Practice Next Giant Leap for Artemis 

The physics remain the same, but the rockets, spacecraft, landers, and spacesuits are new as NASA and its industry partners prepare for Artemis astronauts to walk on the Moon for the first time since 1972.

NASA astronaut Doug “Wheels” Wheelock and Axiom Space astronaut Peggy Whitson put on spacesuits, developed by Axiom Space, to interact with and evaluate full-scale developmental hardware of SpaceX’s Starship HLS (Human Landing System) that will be used for landing humans on the Moon under Artemis. The test, conducted April 30, marked the first time astronauts in pressurized spacesuits interacted with a test version of Starship HLS hardware.

“With Artemis, NASA is going to the Moon in a whole new way, with international partners and industry partners like Axiom Space and SpaceX. These partners are contributing their expertise and providing integral parts of the deep space architecture that they develop with NASA’s insight and oversight,” said Amit Kshatriya, NASA’s Moon to Mars program manager. “Integrated tests like this one, with key programs and partners working together, are crucial to ensure systems operate smoothly and are safe and effective for astronauts before they take the next steps on the Moon.”

The day-long test, conducted at SpaceX headquarters in Hawthorne, California, provided NASA and its partners with valuable feedback on the layout, physical design, mechanical assemblies, and clearances inside the Starship HLS, as well as the flexibility and agility of the suits, known as the AxEMU (Axiom Extravehicular Mobility Unit).

To begin the test, Wheelock and Whitson put on the spacesuits in the full-scale airlock that sits on Starship’s airlock deck. Suits were then pressurized using a system immediately outside the HLS airlock that provided air, electrical power, cooling, and communications to the astronauts. Each AxEMU also included a full-scale model of the Portable Life Support System, or “backpack,” on the back of the suits. For Artemis moonwalks, each crew member will put on a spacesuit with minimal assistance, so the team was eager to evaluate how easily the suits can be put on, taken off, and stowed in the airlock.

During the test, NASA and SpaceX engineers were also able to evaluate placement of mobility aids, such as handrails, for traversing the hatch. Another set of mobility aids, straps hanging from the ceiling in the airlock, assisted the astronauts when entering and removing the AxEMU suits. The astronauts also practiced interacting with a control panel in the airlock, ensuring controls could be reached and activated while the astronauts were wearing gloves.

“Overall, I was pleased with the astronauts’ operation of the control panel and with their ability to perform the difficult tasks they will have to do before stepping onto the Moon,” said Logan Kennedy, lead for surface activities in NASA’s HLS Program. “The test also confirmed that the amount of space available in the airlock, on the deck, and in the elevator, are sufficient for the work our astronauts plan to do.”

The suited astronauts also walked the from Starship’s airlock deck to the elevator built for testing. During Artemis missions, the elevator will take NASA astronauts and their equipment from the deck to the lunar surface for a moonwalk and then back again. Whitson and Wheelock practiced opening a gate to enter the elevator while evaluating the dexterity of the AxEMU suit gloves, and practiced lowering the ramp that astronauts will use to take the next steps on the Moon.

The steps the astronauts took in the spacesuits through full-scale builds of the Starship hatch, airlock, airlock deck, and elevator may have been small, but they marked an important step toward preparing for a new generation of moonwalks as part of Artemis.

For the Artemis III mission, SpaceX will provide the Starship HLS that will dock with Orion in lunar orbit and take two astronauts to and from the surface of the Moon. Axiom Space is providing a new generation of spacesuits for moonwalks that are designed to fit a wider range of astronauts.

With Artemis, NASA will explore more of the Moon than ever before, learn how to live and work away from home, and prepare for future human exploration of the Red Planet. NASA’s SLS (Space Launch System) rocket, exploration ground systems, and Orion spacecraft, along with the human landing system, next-generation spacesuits, Gateway lunar space station, and future rovers are NASA’s foundation for deep space exploration.

For more information about Artemis, visit:

https://www.nasa.gov/artemis

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Lee Mohon