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Harvard scientist Avi Loeb claims 'Metallic Spheres' found on ocean floor may be alien tech
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Explore Hubble Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble Team Career Aspirations Hubble Astronauts News Hubble News Hubble News Archive Social Media Media Resources Multimedia Multimedia Images Videos Sonifications Podcasts e-Books Online Activities Lithographs Fact Sheets Posters Hubble on the NASA App Glossary More 35th Anniversary Online Activities 2 min read
Hubble Spies a Spiral That May Be Hiding an Imposter
The spiral galaxy UGC 5460 shines in this NASA/ESA Hubble Space Telescope image. UGC 5460 sits about 60 million light-years away in the constellation Ursa Major. ESA/Hubble & NASA, W. Jacobson-Galán, A. Filippenko, J. Mauerhan
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The sparkling spiral galaxy gracing this NASA/ESA Hubble Space Telescope image is UGC 5460, which sits about 60 million light-years away in the constellation Ursa Major. This image combines four different wavelengths of light to reveal UGC 5460’s central bar of stars, winding spiral arms, and bright blue star clusters. Also captured in the upper left-hand corner is a far closer object: a star just 577 light-years away in our own galaxy.
UGC 5460 has hosted two recent supernovae: SN 2011ht and SN 2015as. It’s because of these two stellar explosions that Hubble targeted this galaxy, collecting data for three observing programs that aim to study various kinds of supernovae.
SN 2015as was as a core-collapse supernova: a cataclysmic explosion that happens when the core of a star far more massive than the Sun runs out of fuel and collapses under its own gravity, initiating a rebound of material outside the core. Hubble observations of SN 2015as will help researchers understand what happens when the expanding shockwave of a supernova collides with the gas that surrounds the exploded star.
SN 2011ht might have been a core-collapse supernova as well, but it could also be an impostor called a luminous blue variable. Luminous blue variables are rare stars that experience eruptions so large that they can mimic supernovae. Crucially, luminous blue variables emerge from these eruptions unscathed, while stars that go supernova do not. Hubble will search for a stellar survivor at SN 2011ht’s location with the goal of revealing the explosion’s origin.
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The Death Throes of Stars
Homing in on Cosmic Explosions
Media Contact:
Claire Andreoli (claire.andreoli@nasa.gov)
NASA’s Goddard Space Flight Center, Greenbelt, MD
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Last Updated Feb 21, 2025 Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center Related Terms
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Hubble Space Telescope
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
Hubble’s Night Sky Challenge
Hubble’s Galaxies
Reshaping Our Cosmic View: Hubble Science Highlights
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
How to Attend
The workshop will be hosted by NASA Jet Propulsion Laboratory.
Virtual and in-person attendance are available. Registration is required for both. (Link coming soon!)
Virtual attendees will receive connection information one week before the workshop.
Background, Goals and Objectives
The NASA Engineering and Safety Center (NESC) is conducting an assessment of the state of cold capable electronics for future lunar surface missions. The intent is to enable the continuous use of electronics with minimal or no thermal management on missions of up to 20 years in all regions of the lunar surface, e.g., permanently shadowed regions and equatorial. The scope of the assessment includes: capture of the state of cold electronics at NASA, academia, and industry; applications and challenges for lunar environments; gap analyses of desired capabilities vs state of the art/practice; guidance for cold electronics selection, evaluation and qualification; and recommendations for technology advances and follow-on actions to close the gaps. The preliminary report of the assessment will be available the first week of April 2025 on this website, i.e., 3 weeks prior to the workshop. Attendees are urged to read the report beforehand as the workshop will provide only a limited, high-level summary of the report’s key findings. The goal of the workshop is to capture your feedback with regards to the findings of the report, especially in the areas below: Technologies, new or important studies or data that we missed. Gaps, i.e. requirements vs available capabilities that we missed. Additional recommendations, suggestions, requests, that we missed.
Preliminary Agenda
Day 1, April 30, 2025 8:00 – 9:00 Sign-in 9:00 – 10:00 Introduction – Y. Chen 10:00 – 11:00 Environment and Architectural Considerations – R. Some 11:00 – 12:00 Custom Electronics – M. Mojarradi 12:00 – 13:00 Lunch 13:00 – 14:00 COTS Components – J. Yang-Scharlotta 14:00 – 15:00 Power Architecture – R. Oeftering 15:00 – 15:30 Energy Storage – E. Brandon 15:30 – 17:00 Materials and Packaging and Passives – L. Del Castillo 17:00 – 17:30 Qualification – Y. Chen 18:30 Dinner Day 2, May 1, 2025 8:00 – 9:00 Sign-in 9:00 – 12:00 Review and discussion of key findings 12:00 – 13:00 Lunch 13:00 – 15:00 Follow on work concepts & discussions. Please be prepared to discuss: 15 min each from industry primes and subsystem developers What would you like to see developed and how would it impact your future missions/platforms? 15:00 – 17:30 Follow on work concepts & discussions 15 min each from technology & component developers, academia, government agencies, etc. What would you like to be funded to do and what are benefits to NASA/missions? 17:00 – 17:30 Wrap up – Y. Chen Points of Contact
If you have any questions regarding the workshop, please contact Roxanne Cena at Roxanne.R.Cena@jpl.nasa.gov and Amy K. Wilson at Amy.K.Wilson@jpl.nasa.gov
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Last Updated Feb 20, 2025 Related Terms
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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
We’ve been talking about this for 2,000 years. Aristotle mentions it. And in our own time, scientists are designing experiments to figure out exactly what’s going on. But there’s no consensus yet.
Here’s what we do know.
The atmosphere isn’t magnifying the Moon. If anything, atmospheric refraction squashes it a little bit. And the Moon’s not closer to us at the horizon. It’s about 1.5 percent farther away. Also, it isn’t just the Moon. Constellations look huge on the horizon, too.
One popular idea is that this is a variation on the Ponzo illusion. Everything in our experience seems to shrink as it recedes toward the horizon — I mean clouds and planes and cars and ships. But the Moon doesn’t do that. So our minds make up a story to reconcile this inconsistency. Somehow the Moon gets bigger when it’s at the horizon. That’s one popular hypothesis, but there are others. And we’re still waiting for the experiment that will convince everyone that we understand this.
So why does the Moon look larger on the horizon? We don’t really know, but scientists are still trying to figure it out.
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Last Updated Feb 12, 2025 Related Terms
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4 min read NASA’s Mini Rover Team Is Packed for Lunar Journey
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By NASA
Lee esta historia en español aquí
When Rose Ferreira first saw an image of a field of galaxies and galaxy clusters from NASA’s James Webb Space Telescope in July, she “went into the restroom and broke down a little,” she said. This “Deep Field” image showed galaxies not only sharper, but deeper into the universe than a similar image she loved from the Hubble Space Telescope.
“Being able to contribute in any way to the efforts of the team within NASA that released this new Deep Field just felt like such a profound thing for me,” said Ferreira, a student at Arizona State University who interned with NASA this summer. “I was just a little bit in shock for, like, a week.”
Rose Ferreira estudia ciencias planetarias y astronomía en la Universidad Estatal de Arizona.Credits: James Mayer Webb, the largest space science telescope ever, which launched in December 2021, played a big role in Ferreira’s internship at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. She also supported a series of live news interviews for Webb’s first images and multimedia tasks for NASA’s Spanish-language communications program.
Growing up in the Dominican Republic, Ferreira said she didn’t have access to science education. She was taught skills like cooking and cleaning; she didn’t know NASA existed at that time.
But during the frequent blackouts in her village, when the Moon provided the only light, Rose Ferreira often wondered – what is the Moon all about? “The moonlight is a lot of what I used to see, and I was always so curious about that,” she said. “That obsession is what made me start asking questions.”
When she came to New York, she was placed in an underserved high school that sent her back multiple grades because they weren’t satisfied with her English language skills. She left and earned a GED diploma instead, hoping to go to college faster.
At age 18, Ferreira became homeless in New York and lived in train stations. By working as a home health aide, she was able to earn enough to rent an apartment in Queens and, eventually, get an associate degree.
Life threw other major challenges at her, including getting hit by a car and a cancer diagnosis.
Ferreira ultimately enrolled in a planetary science and astronomy degree program at Arizona State University. She received a “great birthday present” in the spring of 2022: her official acceptance to NASA’s internship program.
Among the highlights of her NASA experience was recording a voice-over in Spanish for a This Week at NASA video. She also served as a panelist at an event for the Minority University Research and Education Project, organized by NASA’s Office of STEM Engagement.
Ferreira dreams of becoming an astronaut and has a shorter-term goal of earning a doctorate. But the internship also fueled her passion for sharing space science with the public. Chatting with Goddard astrophysicist Dr. Michelle Thaller, host of the Webb broadcasts, was especially meaningful to her.
Rose Ferreira, foreground, in the broadcast control room at NASA’s Goddard Space Flight Center in July 2022.Credits: NASA She has this advice for young people who are also interested in pursuing space science: “Coming from a person who had it a bit harder to get there, I think: first, figure out if it is really what you love. And if it is really what you love, then literally find a way to do it no matter who says what.”
Besides Webb, Ferreira is excited about NASA’s Artemis program, which connects with her passion for the Moon. Through Artemis, NASA will send astronauts to establish a long-term presence on and around the Moon. She’s looking forward to what Artemis will uncover about the Moon’s geology and history while the agency uses the Moon to get ready for human exploration of Mars.
“Even when I was living on the streets, the Moon used to be the thing I looked at to calm myself. It’s my sense of comfort, even today when I’m overwhelmed by things,” she said. “It’s like a driving force.”
Written by Elizabeth Landau
NASA Headquarters
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By NASA
“I do evolutionary programming,” said NASA Goddard oceanographer Dr. John Moisan. “I see a lot of possibility in using evolutionary programming to solve many large problems we are trying to solve. How did life start and evolve? Can these processes be used to evolve intelligence or sentience?”Courtesy of John Moisan Name: John Moisan
Formal Job Classification: Research oceanographer
Organization: Ocean Ecology Laboratory, Hydrosphere, Biosphere, Geophysics (HBG), Earth Science Directorate (Code 616) – duty station at NASA’s Wallops Flight Facility on Virginia’s Eastern Shore
What do you do and what is most interesting about your role here at Goddard? How do you help support Goddard’s mission?
I develop ecosystem models and satellite algorithms to understand how the ocean’s ecology works. My work has evolved over time from when I coded ocean ecosystem models to the present where I now use artificial intelligence to evolve the ocean ecosystem models.
How did you become an oceanographer?
As a child, I watched a TV series called “Sea Hunt,” which involved looking for treasure in the ocean. It inspired me to want to spend my life scuba diving.
I got a Bachelor of Science in marine biology from the University of New England in Biddeford, Maine, and later got a Ph.D. from the Center for Coastal Physical Oceanography at Old Dominion University in Norfolk, Virginia.
Initially, I just wanted to do marine biology which to me meant doing lots of scuba diving, maybe living on a sailboat. Later, when I was starting my graduate schoolwork, I found a book about mathematical biology and a great professor who helped open my eyes to the world of numerical modeling. I found out that instead of scuba diving, I needed instead to spend my days behind a computer, learning how to craft ideas into equations and then code these into a computer to run simulations on ocean ecosystems.
I put myself through my initial education. I went to school fulltime, but I lived at home and hitchhiked to college on a daily basis. When I started my graduate school, I worked to support myself. I was in school during the normal work week, but from Friday evening through Sunday night, I worked 40 hours at a medical center cleaning and sterilizing the operating room instrument carts. This was during the height of the AIDS epidemic.
What was most exciting about your two field trips to the Antarctic?
In 1987, I joined a six-week research expedition to an Antarctic research station to explore how the ozone hole was impacting phytoplankton. These are single-celled algae that are responsible for making half the oxygen we breathe. Traveling to Antarctica is like visiting another planet. There are more types of blue than I’ve ever seen. It is an amazingly beautiful place to visit, with wild landscapes, glaciers, mountains, sea ice, and a wide range of wildlife. After my first trip I returned home and went back in a few months later as a biologist on a joint Polish–U.S. (National Oceanic and Atmospheric Administration) expedition to carry out a biological survey and measure how much fast the phytoplankton was growing in different areas of the Southern Ocean. We used nets to measure the amounts of fish and shrimp and took water samples to measure salinity, the amount of algae and their growth rates. We ate well, for example the Polish cook made up a large batch of smoked ice fish.
What other field work have you done?
While a graduate student, I helped do some benthic work in the Gulf of Maine. This study was focused on understanding the rates of respiration in the muds on the bottom of the ocean and on understanding how much biomass was in the muds. The project lowered a benthic grab device to the bottom where it would push a box core device into the sediments to return it to the surface. This process is sort of like doing a biopsy of the ocean bottom.
What is your goal as a research oceanographer at Goddard?
Ocean scientists measure the amount and variability of chlorophyll a, a pigment in algae, in the ocean because it is an analogue to the amount of algae or phytoplankton in the ocean. Chlorophyll a is used to capture solar energy to make sugars, which the algae use for growth. Generally, areas of the ocean that have more chlorophyll are also areas where growth or primary production is higher. So, by estimating how much chlorophyll is in the ocean we can study how these processes are changing with an aim in understanding why. NASA uses the color of the ocean using satellites to estimate chlorophyll a because chlorophyll absorbs sunlight and changes the color of the ocean. Algae have other kinds of pigments, each of which absorbs light at different wavelengths. Because different groups of algae have different levels of pigments, they are like fingerprints that can reveal the type of algae in the water. Some of my research aims at trying to use artificial intelligence and mathematical techniques to create new ways to measure these pigments from space to understand how ocean ecosystems change.
In 2024, NASA plans to launch the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) satellite, which will measure the color of the ocean at many different wavelengths. The data from this satellite can be used with results from my work on genetic programs and inverse modeling to estimate concentrations of different pigments and possibly concentrations of different types of algae in the ocean.
You have been at Goddard over 22 years. What is most memorable to you?
I develop ecosystem models. But ecosystems do not have laws in the same way that physics has laws. Equations need to be created so that the ecosystem models represent what is observed in the real world. Satellites have been a great source for those observations, but without a lot of other types of observations that are collected in the field, the ocean, it is difficult to develop these equations. In my time at NASA, I have only been able to develop models because of the great but often tedious work that ocean scientists around the world have been doing when they go on ocean expeditions to measure various ocean features, be it simple temperature or the more complicated measurements of algal growth rates. My experience with their willingness to collaborate and share data is especially memorable. This experience is also what I enjoyed with numerous scientists at NASA who have always been willing to support new ideas and point me in the right direction. It has made working at NASA a phenomenal experience.
What are the philosophical implications of your work?
The human capacity to think rapidly, to test and change our opinions based on what we learn, is slow compared to that of a computer. Computers can help us adapt more quickly. I can put 1,000 students in a room developing ecosystem model models. But I know that this process of developing ecosystem models is slow when compared what a computer can do using an artificial intelligence approach called genetic programming, it is a much faster way to generate ecosystem model solutions.
Philosophically, there is no real ecosystem model that is the best. Life and ecosystems on Earth change and adapt at rates too fast for any present-day model to resolve, especially considering climate change. The only real ecosystem model is the reality itself. No computer model can perfectly simulate ecosystems. By utilizing the fast adaptability that evolutionary computer modeling techniques provide, simulating and ultimately predicting ecosystems can be improved greatly.
How does your work have implications for scientists in general?
I do evolutionary programming. I see a lot of possibility in using evolutionary programming to solve many large problems we are trying to solve. How did life start and evolve? Can these processes be used to evolve intelligence or sentience?
The artificial intelligence (AI) work answers questions, but you need to identify the questions. This is the greater problem when it comes to working with AI. You cannot answer the question of how to create a sentient life if you do not know how to define it. If I cannot measure life, how can I model it? I do not know how to write that equation. How does life evolve? How did the evolutionary process start? These are big questions I enjoy discussing with friends. It can be as frustrating as contemplating “nothing.”
Who inspires you?
Many of the scientists that I was fortunate to work with at various research institutes, such as Scripps Institution of Oceanography at the University of California, San Diego. These are groups of scientists are open to always willing to share their ideas. These are individuals who enjoy doing science. I will always be indebted to them for their kindness in sharing of ideas and data.
Do you still scuba dive?
Yes, I wish I could dive daily, it is a very calming experience. I’m trying to get my kids to join me.
What else do you do for fun?
My wife and I bike and travel. Our next big bike trip will hopefully be to Shangri-La City in China. I also enjoy sailing and trying to grow tropical plants. But, most of all, I enjoy helping raise my children to be resilient, empathic, and intelligent beings.
What are your words to live by?
Life. So much to see. So little time.
Conversations With Goddard is a collection of question and answer 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. 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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Last Updated Feb 10, 2025 EditorJessica EvansContactRob Garnerrob.garner@nasa.gov Related Terms
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