NASA Astronauts O’Hara and Moghbeli Explore Earth Data

On Dec. 4, 2024, NASA astronauts Loral O’Hara, left, and Jasmin Moghbeli spent a moment in part of the Earth Information Center, an immersive experience combining live NASA data sets with innovative data visualization and storytelling at NASA Headquarters in Washington.

O’Hara and Moghbeli spent six months in space as part of Expedition 70 aboard the International Space Station. On Nov. 1, 2023, they performed a spacewalk together that lasted 6 hours and 42 minutes.

Image credit: NASA/Joel Kowsky

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Monika Luabeya

Looking Out for ‘Lookout Hill’

At Pico Turquino, a bedrock mesa on the Jezero crater rim, the science and engineering teams planned proximity science on Percy’s 30th abrasion patch, Rio Chiquito. SCAM and ZCAM characterized the rock near the abrasion, while SHERLOC and PIXL instruments were deployed for proximity science. The data from Rio Chiquito will help characterize the Pico Turquino area in addition to helping scientists understand the broader story and complex geologic history of Jezero crater.

After reaching the 30th abrasion milestone, Percy — along with the rover team back on Earth — took a couple of sols of much-deserved break over the Thanksgiving holiday before getting back to work.

Percy has since left Pico Turquino and has started moving to the next geologically significant stop, called Witch Hazel Hill. There is also a planned stop along the way near the highest point of the crater rim that the rover will traverse, a locale aptly named “Lookout Hill” where we will get outstanding views of both the interior of Jezero crater and the surrounding landscape, as if in a lookout tower. The path to get to these stops is mostly covered in regolith (soil) and lacks interesting rock outcrops, so the team’s focus over the next few weeks is on making and monitoring drive progress. As the rover drives, however, it will still have science cameras trained on interesting rock outcrops in the far distant hills to gather additional clues about the rocks that make up the Jezero crater rim.

Personally, I can’t wait for our stop at Lookout Hill, the apex of the crater rim, to see some gorgeous views inside and outside of Jezero from one of the highest spots around! Along with analyzing other returned data while Percy progresses toward Witch Hazel Hill, we’ll be anxiously scanning our post-drive images to look out for Lookout Hill coming into view

Written by Eleanor Moreland, Ph.D. student collaborator at Rice University

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December 2024 Transformer of the Month: Jill Marlowe

If Digital Transformation were a ship, the vessel for delivering on our missions and ensuring smooth passage into the future, our final Digital Transformer of 2024 would be the captain. Growing up sailing with her father on the Chesapeake Bay, this transformer developed the navigation skills she now uses at NASA “with both clarity and precision, much like a sailor who understands the subtle shifts in the wind,” says Christina Haymes, DT Enterprise Integration Architect. “She knows how to watch the sea to find the invisible breeze,” notes Patrick Murphy, DT Portfolio Manager. “I admire how she operates as a leader both in calm and troubling seas to get us where we want to be.” Vision and leadership are just two of the many reasons why our December Digital Transformer, Jill Marlowe, stands at the helm of our ever-evolving journey. 

Jill has dedicated over three decades to her career at NASA, starting as an engineer and evolving into her position as the Digital Transformation Officer. Her early sailing experiences led her to pursue ocean and aerospace engineering at Virginia Tech; an innate passion for continual growth led to subsequent master’s degrees in mechanical, civil, and environmental engineering. As Jill moved into leadership positions across NASA’s engineering organizations, divisions, and directorates, she realized that the technology she was instinctively using to transform her work could also help the agency overcome a wider range of challenges. 

Her keen eye for cross-cutting solutions perfectly positioned her for the dynamic role of Digital Transformation Officer, diving into technical problems with engineers one day and strategizing with senior executives the next. Although she brings a rigorous technical background to the role, Jill most enjoys the creative and collaborative aspects. “It really gives me an opportunity to engage with a lot of earlier career folks who often are bringing some of these digital ideas into our workplace,” she says. “To me, it’s a very generative role, and that’s what I like the best about it.”  

Jill commits to practicing what she preaches, strategically leveraging tools like Microsoft Teams and other M365 applications to build a culture of digital innovation and influence others to join the movement. Krista Kinnard, DT Culture and Communications Lead, says, “We work in a digital world with new tools that make our lives easier. Jill has really shown how the way we interact with each other matters and can be streamlined to drive our team to success.” Jill’s growth-oriented mindset drives her to stay on the cutting edge of new capabilities—always with the goal of enabling mission outcomes and increasing our capacity for partnership. 

When times are challenging, people want heroes. I think a lot of what NASA does is bring humanity together.

Jill Marlowe

Digital Transformation Officer

Jill’s fervent belief in the power of collaboration is evident in the way she talks about her technical work, particularly with Digital Engineering (DE). “I am very excited about where we are with digital engineering at NASA and the progress Terry Hill and his team have made [toward] a unified engineering community,” says Jill. Through seed funding and ongoing support, Jill and the DT team grew Digital Engineering at NASA from initial prototype tests to an operationalized program within the Office of the Chief Engineer. In addition to the community’s alignment around a shared vision, Jill is proud of the team’s quantitative achievements in developing systems, tools, and approaches for digitalizing the engineering processes and adopting a common toolchain. “I feel like we’ve been talking about those kinds of ideas my entire career, and we’re this close to having this in the hands of the engineers across NASA so they can work together and with our partners in ways that we haven’t been able to before” 

For Jill, the measure of DT’s success lies in the ability to enable more complex missions, collaborate more seamlessly with partners, and build more resilient systems that prepare us for the future. Under her leadership, DT facilitated the maturation of NASA Mission Cloud, a digital solution for capturing mission capability requirements and defining technology needs. In FY24, DT launched the new IT Modernization for Transformation (ITMX) fund and curated a $10M portfolio of enterprise solutions in data interoperability, federated search, digital engineering, cybersecurity, artificial intelligence, and more. By championing Digital Transformation at NASA and demonstrating its value, Jill paved the way for solutions that accelerate discovery and mission delivery.  

Over her career, Jill forged bonds, championed innovation, and positioned the agency to leverage the ripple effects of her work long after her upcoming retirement in December. Her legacy, however, might be best summarized by the way she made people feel. “It sounds simple, but so many people are listening to respond, whereas Jill is listening to understand,” Krista says. The rest of DT leadership echoes this sentiment. “Jill has a deep knowledge of NASA and has built strong relationships across the agency. Most of all, I value her mentorship and friendship,” says Christina. Patrick puts it simply: “Collaborating with Jill is a joy.” 

As she reflects on her time at the agency, Jill shares inspiring aspirations for NASA’s future and DT’s ability to carry us on that voyage. “When times are challenging, people want heroes. I think a lot of what NASA does is bring humanity together. When I think about those big expectations on NASA for the future and the technology that’s coming along that can make those dreams come true…it literally gives me chills.” She continues, “I encourage the continued community around Digital Transformation, the continued quest to find shared solutions to common challenges. Because I really do think that’s the way we’re going to get there from here.” 

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Maya L. Kikuchi

Sarah Peacock Surveys Stellar Radiation to Hunt for Habitable Worlds

Knowing whether or not a planet elsewhere in the galaxy could potentially be habitable requires knowing a lot about that planet’s sun. Sarah Peacock relies on computer models to assess stars’ radiation, which can have a major influence on whether or not one of these exoplanets has breathable atmosphere.

Name: Sarah Peacock

Title: Assistant Research Scientist

Formal Job Classification: Astrophysicist

Organization: Exoplanets and Stellar Astrophysics Laboratory, Astrophysics Division, Science Directorate (Code 667)

What do you do and what is most interesting about your role here at Goddard?

My overarching research goal is to find habitable planets in other solar systems. To do this, I study the high-energy radiation that specific stars produce to help determine if life can exist on any earthlike planets that orbit them.

What is your educational background?

In 2013, I received a Bachelor of Arts in astrophysics from the University of Virginia. I received both my master’s and doctorate degrees from the Lunar and Planetary Laboratory at the University of Arizona in 2016 and 2019, respectively.

What drew you to study the stars?

In high school, I took an astronomy class. We had a planetarium in our school and I had a wonderful teacher who inspired me to fall in love with the stars. She also showed us how many of the Harry Potter characters are drawn from the constellations and that spoke to my heart because I am a Harry Potter fan!

How did you come to Goddard?

I started at Goddard as a NASA post-doctoral fellow in July 2020, but I first saw the center the day before Goddard shut down due to COVID.

How does high-energy radiation show you what planets outside our solar system might be habitable?

High-energy radiation can cause a planet to lose its atmosphere. If a planet is exposed to too much high-energy radiation, the atmosphere can be blown off, and if there is no atmosphere, then there is nothing for life as we know it to breathe.

We cannot directly measure the specific radiation that I study, so we have to model it. The universe has so many stars, and almost all stars host a planet. There are approximately 5,500 confirmed exoplanets so far, with an additional 7,500 unconfirmed exoplanets.

I help identify systems that either have too much radiation, so planets in the habitable zone (the region around a star where liquid water could exist on a planet’s surface) are probably lifeless, or systems that have radiation levels that are safer. Ultimately, my research helps narrow down the most likely systems to host planets that should have stable atmospheres.

Where does your data come from?

I predominately use data from the Hubble Space Telescope and from the now-retired spacecraft GALEX. My work itself is more theory-focused though: I create a modeled stellar spectrum across all wavelengths and use observations to validate my modeling.

What other areas of research are you involved in?

I am working with a team analyzing data from the James Webb Space Telescope to see if earthlike planets around M-type stars (a star that is cooler and smaller than the Sun) have atmospheres and, if so, what the composition of those atmospheres is. An exciting result from this work is that we may have detected water in the atmosphere of a rocky planet for the first time ever. However, we cannot yet distinguish with our current observations if that water comes from the planet or from spots on the star (starspots on this host star are cold enough for water to exist in gas form).

I am also helping manage a NASA Innovative Advance Concept (NIAC) study led by my mentor, Ken Carpenter, to work on the Artemis Enabled Stellar Imager (AeSI). If selected for further development, this imager would be an ultraviolet/optical interferometer located on the South Pole of the Moon. With this telescope, we would be able to map the surface of stars, image accretion disks, and image the centers of Active Galactic Nuclei.

As a relatively new employee to Goddard, what have been your first impressions?

Everyone who I have met, especially those in my lab, are incredibly friendly and welcoming. Starting during the pandemic, I was worried about feeling isolated, but instead, I was blown away by how many folks in my lab reached out to set up calls to introduce themselves and suggest opportunities for collaboration. It made me feel welcome.

Who is your mentor and what did your mentor advise you?

Ken Carpenter is my mentor. He encourages me to pursue my aspirations. He supports letting me chart my own path and being exposed to many different areas of research. I thank Ken for his support and encouragement and for including me on his projects.

What do you do for fun?

I am a new mom, so my usual hobbies are on pause! Right now, fun is taking care of my baby and introducing life experiences to him.

As a recently selected member of the Executive Committee for NASA’s Exoplanet Exploration Program Analysis Group (ExoPAG), what are your responsibilities?

The NASA ExoPAG is responsible for soliciting and coordinating scientific community input into the development and execution of NASA’s exoplanet exploration program. We solicit opinions and advice from any scientist who studies exoplanets. We are a bridge between NASA’s exoplanet scientists and NASA Headquarters in Washington.

What is a fun fact about yourself?

I got married the same day I defended my Ph.D. I had my defense in the morning and got married in the afternoon at the courthouse.

Who is your favorite author?

I love to read; I always have three books going. My favorite author is Louise Penny, who writes mysteries, but I read all genres. Right now, I am reading a biography about Marjorie Merriweather Post.

What is your favorite quote?

“The most that can be expected from any model is that it can supply a useful approximation to reality: All models are wrong; some models are useful.” —Box and Draper 1987

By Elizabeth M. Jarrell
NASA’s Goddard Space Flight Center, Greenbelt, Md.

Conversations With Goddard is a collection of Q&A profiles highlighting the breadth and depth of NASA’s Goddard Space Flight Center’s talented and diverse workforce. The Conversations have been published twice a month on average since May 2011. Read past editions on Goddard’s “Our People” webpage.

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Black Hole Jet Stumbles Into Something in the Dark

Even matter ejected by black holes can run into objects in the dark. Using NASA’s Chandra X-ray Observatory, astronomers have found an unusual mark from a giant black hole’s powerful jet striking an unidentified object in its path.

The discovery was made in a galaxy called Centaurus A (Cen A), located about 12 million light-years from Earth. Astronomers have long studied Cen A because it has a supermassive black hole in its center sending out spectacular jets that stretch out across the entire galaxy. The black hole launches this jet of high-energy particles not from inside the black hole, but from intense gravitational and magnetic fields around it.

The image shows low-energy X-rays seen by Chandra represented in pink, medium-energy X-rays in purple, and the highest-energy X-rays in blue.

In this latest study, researchers determined that the jet is — at least in certain spots — moving at close to the speed of light. Using the deepest X-ray image ever made of Cen A, they also found a patch of V-shaped emission connected to a bright source of X-rays, something that had not been seen before in this galaxy.

Called C4, this source is located close to the path of the jet from the supermassive black hole and is highlighted in the inset. The arms of the “V” are at least about 700 light-years long. For context, the nearest star to Earth is about 4 light-years away.

While the researchers have ideas about what is happening, the identity of the object being blasted is a mystery because it is too distant for its details to be seen, even in images from the current most powerful telescopes.

The incognito object being rammed may be a massive star, either by itself or with a companion star. The X-rays from C4 could be caused by the collision between the particles in the jet and the gas in a wind blowing away from the star. This collision can generate turbulence, causing a rise in the density of the gas in the jet. This, in turn, ignites the X-ray emission seen with Chandra.

The shape of the “V,” however, is not completely understood. The stream of X-rays trailing behind the source in the bottom arm of the “V” is roughly parallel to the jet, matching the picture of turbulence causing enhanced X-ray emission behind an obstacle in the path of the jet. The other arm of the “V” is harder to explain because it has a large angle to the jet, and astronomers are unsure what could explain that.

This is not the first time astronomers have seen a black hole jet running into other objects in Cen A. There are several other examples where a jet appears to be striking objects — possibly massive stars or gas clouds. However, C4 stands out from these by having the V-shape in X-rays, while other obstacles in the jet’s path produce elliptical blobs in the X-ray image. Chandra is the only X-ray observatory capable of seeing this feature. Astronomers are trying to determine why C4 has this different post-contact appearance, but it could be related to the type of object that the jet is striking or how directly the jet is striking it.

A paper describing these results appears in a recent issue of The Astrophysical Journal. The authors of the study are David Bogensberger (University of Michigan), Jon M. Miller (University of Michigan), Richard Mushotsky (University of Maryland), Niel Brandt (Penn State University), Elias Kammoun (University of Toulouse, France), Abderahmen Zogbhi (University of Maryland), and Ehud Behar (Israel Institute of Technology).

NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.

Read more from NASA’s Chandra X-ray Observatory.

Learn more about the Chandra X-ray Observatory and its mission here:

https://www.nasa.gov/chandra

https://chandra.si.edu

Visual Description

This release features a series of images focusing on a collision between a jet of matter blasting out of a distant black hole, and a mysterious, incognito object.

At the center of the primary image is a bright white dot, encircled by a hazy purple blue ring tinged with neon blue. This is the black hole at the heart of the galaxy called Centaurus A. Shooting out of the black hole is a stream of ejected matter. This stream, or jet, shoots in two opposite directions. It shoots toward us, widening as it reaches our upper left, and away from us, growing thinner and more faint as it recedes toward the lower right. In the primary image, the jet resembles a trail of hot pink smoke. Other pockets of granular, hot pink gas can be found throughout the image. Here, pink represents low energy X-rays observed by Chandra, purple represents medium energy X-rays, and blue represents high energy X-rays.

Near our lower right, where the jet is at its thinnest, is a distinct pink “V”, its arms opening toward our lower right. This mark is understood to be the result of the jet striking an unidentified object that lay in its path. A labeled version of the image highlights this region, and names the point of the V-shape, the incognito object, C4. A wide view version of the image is composited with optical data.

At the distance of Cen A, the arms of the V-shape appear rather small. In fact, each arm is at least 700 light-years long. The jet itself is 30,000 light-years long. For context, the nearest star to the Sun is about 4 light-years away.

News Media Contact

Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu

Lane Figueroa
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
lane.e.figueroa@nasa.gov

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Lee Mohon