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Celebrating Hubble’s 32nd birthday with a galaxy grouping
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By NASA
NASA’s Ames Research Center in California’s Silicon Valley, is celebrating 85 years of cutting-edge research and development in space, life sciences, supercomputing, aeronautics, and more for the benefit of humanity. Ames was founded as an aeronautical laboratory in December 1939, and has since contributed to many of NASA’s flagship missions from Apollo to Artemis.
NASA Ames experts are available for interviews Thursday, Dec. 19, and Friday, Dec. 20. To request an interview about the center’s legacy in space, science, technology, and aeronautics, email the Ames newsroom at: arc-dl-newsroom@mail.nasa.gov.
NASA Ames experts include:
James Anderson, NASA Ames historian; Lynn Harper, lead of integrative studies in the NASA Space Portal, working to propel U.S. industry toward the development of a sustainable, scalable, and profitable non-NASA demand for services and products manufactured in the microgravity environment of low Earth orbit; Shivanjli Sharma, aerospace research engineer, working to enable advanced aviation technologies for new methods of air cargo and passenger transportation in urban, suburban, rural, and regional communities; Dave Alfano, chief of the Ames Intelligent Systems Division, working to produce ground and flight software systems and data architectures for data mining, analysis, integration, and management; integrated health management, and more for missions across the agency. Ames has established itself as a leader in the aeronautics industry, developing foundational technologies for advanced air vehicles, including air taxis and remotely piloted aircraft. On the International Space Station, Ames researchers have tested a method to develop nutrients off-Earth and on-demand. Cube-shaped robots have been delivered to the station to assist astronauts with routine duties. Ames engineers have developed and are testing a heat shield for the Orion crew capsule that will safely return astronauts home to Earth as part of the agency’s Artemis missions to the Moon.
For more information on Ames’ history and contributions, visit:
https://www.nasa.gov/reference/ames-history
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Rachel Hoover
Ames Research Center, Silicon Valley, Calif.
650-604-4789
rachel.l.hoover@nasa.gov
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By NASA
4 Min Read Celebrating 20 Years: Night Sky Network
2023 Partial Solar Eclipse Viewing at Camino Real Marketplace with the View the Santa Barbara Astronomical Unit. Credits:
Photo by Chuck McPartlin by Vivan White & Kat Troche of the Astronomical Society of the Pacific
NASA’s Night Sky Network is one of the most successful and longstanding grassroots initiatives for public engagement in astronomy education. Started in 2004 with the PlanetQuest program out of the Jet Propulsion Laboratory and currently supported by NASA’s Science Activation, the Night Sky Network (NSN) plays a critical role in fostering science literacy through astronomy. By connecting NASA science and missions to support amateur astronomy clubs, NSN leverages the expertise and enthusiasm of club members, who bring this knowledge to schools, museums, observatories, and other organizations, bridging the gap between NASA science and the public. Now in its 20th year, NSN supports over 400 astronomy clubs dedicated to bringing the wonder of the night sky to their communities across the US, connecting with 7.4 million people across the United States and its territories since its inception.
International Observe the Moon Night, September 2024 Credit: Oklahoma City Astronomy Club Humble Beginnings
It all started with an idea – astronomy clubs already do great outreach, and club members know a lot of astronomy (shown definitively by founder Marni Berendsen’s research), and they love to talk with the public – how could NASA support these astronomy clubs in sharing current research and ideas using informal activities designed for use in the places that amateur astronomers do outreach. Thanks to funding through NASA JPL’s PlanetQuest public engagement program, the Night Sky Network was born in 2004, with more than 100 clubs joining the first year.
Raynham Public Observing Night, February 2004 Credit: Astronomical Society of Southern New England/Mark Gibson As quoted from the first NSN news article, “NASA is very excited to be working closely with the amateur astronomy community,” said Michael Greene, current Director for Communications and Education and former head of public engagement for JPL’s Navigator Program and PlanetQuest initiatives, “Amateurs want more people to look at the sky and understand astronomy, and so do we. Connecting what we do with our missions to the sense of wonder that comes when you look up at the stars and the planets is one of our long-term objectives. We have a strong commitment to inspiring the next generation of explorers. Lending support to the energy that the amateur astronomy community brings to students and the public will allow NASA to reach many more people.”
Taking off like a rocket, Night Sky Network had over 100 clubs registered on their website within the first year.
The Toolkits
Outreach Toolkits were developed to assist clubs with their endeavors. These kits included educational materials, hands-on activities, and guides to explaining topics in an accessible way. So far, 13 toolkits have been created with topics ranging from the scale of the universe to how telescopes work. To qualify for these free Toolkits, clubs must be active in their communities, hosting two outreach events every three months or five outreach events within a calendar year. Supplemental toolkits were also created based on special events, such as the solar eclipses and the 50th anniversary of Apollo’s Moon landing. A new toolkit is in development to teach audiences about solar science, and NSN is on track to support clubs well into the future.
Rye Science Day, October 2014 Credit: Southern Colorado Astronomical Society/Malissa Pacheco NSN also hosts archived video trainings on these toolkits and other topics via its YouTube channel and a monthly webinar series with scientists from various institutions worldwide. Lastly, a monthly segment called Night Sky Notes is produced for clubs to share with their audiences via newsletters and mailing lists.
Sharing the Universe
In 2007, a National Science Foundation grant provided funding for further research into astronomy club needs. From that came three resources for clubs – the Growing Your Astronomy Club and Getting Started with Outreach video series, as well as an updated website with a national calendar and club and event coordination. Now you can find hundreds of events each month across the country, including virtual events that you can join from anywhere.
Night Sky Network: Current and Future
Map of Night Sky Network clubs within the United States, as of November 2024 Credit: Night Sky Network/Google Maps View the full article
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By European Space Agency
For the first time, the NASA/ESA/CSA James Webb Space Telescope has detected and ‘weighed’ a galaxy, in the early Universe, that has a mass that is similar to what our Milky Way galaxy’s mass might have been at the same stage of development. Found at around 600 million years after the Big Bang, this lightweight galaxy, nicknamed the Firefly Sparkle, is gleaming with star clusters – 10 in total – that researchers examined in great detail. Other galaxies Webb has detected at this period in the history of the Universe are significantly more massive.
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By NASA
Webb Webb News Latest News Latest Images Blog (offsite) Awards X (offsite – login reqd) Instagram (offsite – login reqd) Facebook (offsite- login reqd) Youtube (offsite) Overview About Who is James Webb? Fact Sheet Impacts+Benefits FAQ Science Overview and Goals Early Universe Galaxies Over Time Star Lifecycle Other Worlds Observatory Overview Launch Orbit Mirrors Sunshield Instrument: NIRCam Instrument: MIRI Instrument: NIRSpec Instrument: FGS/NIRISS Optical Telescope Element Backplane Spacecraft Bus Instrument Module Multimedia About Webb Images Images Videos What is Webb Observing? 3d Webb in 3d Solar System Podcasts Webb Image Sonifications Team International Team People Of Webb More For the Media For Scientists For Educators For Fun/Learning 6 Min Read Found: First Actively Forming Galaxy as Lightweight as Young Milky Way
Hundreds of overlapping objects at various distances are spread across this field. At the very center is a tiny galaxy nicknamed Firefly Sparkle that looks like a long, angled, dotted line. Smaller companions are nearby. Credits:
NASA, ESA, CSA, STScI, Chris Willott (National Research Council Canada), Lamiya Mowla (Wellesley College), Kartheik Iyer (Columbia University) For the first time, NASA’s James Webb Space Telescope has detected and “weighed” a galaxy that not only existed around 600 million years after the big bang, but is also similar to what our Milky Way galaxy’s mass might have been at the same stage of development. Other galaxies Webb has detected at this time period are significantly more massive. Nicknamed the Firefly Sparkle, this galaxy is gleaming with star clusters — 10 in all — each of which researchers examined in great detail.
Image A: Firefly Sparkle Galaxy and Companions in Galaxy Cluster MACS J1423 (NIRCam Image)
For the first time, astronomers using NASA’s James Webb Space Telescope have identified a galaxy, nicknamed the Firefly Sparkle, that not only is in the process of assembling and forming stars around 600 million years after the big bang, but also weighs about the same as our Milky Way galaxy if we could “wind back the clock” to weigh it as it developed. Two companion galaxies are close by, which may ultimately affect how this galaxy forms and builds mass over billions of years. NASA, ESA, CSA, STScI, Chris Willott (National Research Council Canada), Lamiya Mowla (Wellesley College), Kartheik Iyer (Columbia University) “I didn’t think it would be possible to resolve a galaxy that existed so early in the universe into so many distinct components, let alone find that its mass is similar to our own galaxy’s when it was in the process of forming,” said Lamiya Mowla, co-lead author of the paper and an assistant professor at Wellesley College in Massachusetts. “There is so much going on inside this tiny galaxy, including so many different phases of star formation.”
Webb was able to image the galaxy in crisp detail for two reasons. One is a benefit of the cosmos: A massive foreground galaxy cluster radically enhanced the distant galaxy’s appearance through a natural effect known as gravitational lensing. And when combined with the telescope’s specialization in high-resolution infrared light, Webb delivered unprecedented new data about the galaxy’s contents.
Image B: Galaxy Cluster MACS J1423 (NIRCam Image)
In this image from NASA’s James Webb Space Telescope, thousands of glimmering galaxies are bound together by their own gravity, making up a massive cluster formally classified as MACS J1423. The largest, bright white oval is a supergiant elliptical galaxy. The galaxy cluster acts like a lens, magnifying and distorting the light of objects that lie well behind it, an effect known as gravitational lensing. NASA, ESA, CSA, STScI, Chris Willott (National Research Council Canada), Lamiya Mowla (Wellesley College), Kartheik Iyer (Columbia University) “Without the benefit of this gravitational lens, we would not be able to resolve this galaxy,” said Kartheik Iyer, co-lead author and NASA Hubble Fellow at Columbia University in New York. “We knew to expect it based on current physics, but it’s surprising that we actually saw it.”
Mowla, who spotted the galaxy in Webb’s image, was drawn to its gleaming star clusters, because objects that sparkle typically indicate they are extremely clumpy and complicated. Since the galaxy looks like a “sparkle” or swarm of lightning bugs on a warm summer night, they named it the Firefly Sparkle galaxy.
Reconstructing the Galaxy’s Appearance
The research team modeled what the galaxy might have looked like if it weren’t stretched and discovered that it resembled an elongated raindrop. Suspended within it are two star clusters toward the top and eight toward the bottom. “Our reconstruction shows that clumps of actively forming stars are surrounded by diffuse light from other unresolved stars,” said Iyer. “This galaxy is literally in the process of assembling.”
Webb’s data shows the Firefly Sparkle galaxy is on the smaller side, falling into the category of a low-mass galaxy. Billions of years will pass before it builds its full heft and a distinct shape. “Most of the other galaxies Webb has shown us aren’t magnified or stretched, and we are not able to see their ‘building blocks’ separately. With Firefly Sparkle, we are witnessing a galaxy being assembled brick by brick,” Mowla said.
Stretched Out and Shining, Ready for Close Analysis
Since the galaxy is warped into a long arc, the researchers easily picked out 10 distinct star clusters, which are emitting the bulk of the galaxy’s light. They are represented here in shades of pink, purple, and blue. Those colors in Webb’s images and its supporting spectra confirmed that star formation didn’t happen all at once in this galaxy, but was staggered in time.
“This galaxy has a diverse population of star clusters, and it is remarkable that we can see them separately at such an early age of the universe,” said Chris Willott from the National Research Council of Canada’s Herzberg Astronomy and Astrophysics Research Centre, a co-author and the observation program’s principal investigator. “Each clump of stars is undergoing a different phase of formation or evolution.”
The galaxy’s projected shape shows that its stars haven’t settled into a central bulge or a thin, flattened disk, another piece of evidence that the galaxy is still forming.
Image C: Illustration of the Firefly Sparkle Galaxy in the Early Universe (Artist’s Concept)
This artist concept depicts a reconstruction of what the Firefly Sparkle galaxy looked like about 600 million years after the big bang if it wasn’t stretched and distorted by a natural effect known as gravitational lensing. This illustration is based on images and data from NASA’s James Webb Space Telescope. Illustration: NASA, ESA, CSA, Ralf Crawford (STScI). Science: Lamiya Mowla (Wellesley College), Guillaume Desprez (Saint Mary’s University) Video: “Firefly Sparkle” Reveals Early Galaxy
‘Glowing’ Companions
Researchers can’t predict how this disorganized galaxy will build up and take shape over billions of years, but there are two galaxies that the team confirmed are “hanging out” within a tight perimeter and may influence how it builds mass over billions of years.
Firefly Sparkle is only 6,500 light-years away from its first companion, and its second companion is separated by 42,000 light-years. For context, the fully formed Milky Way is about 100,000 light-years across — all three would fit inside it. Not only are its companions very close, the researchers also think that they are orbiting one another.
Each time one galaxy passes another, gas condenses and cools, allowing new stars to form in clumps, adding to the galaxies’ masses. “It has long been predicted that galaxies in the early universe form through successive interactions and mergers with other tinier galaxies,” said Yoshihisa Asada, a co-author and doctoral student at Kyoto University in Japan. “We might be witnessing this process in action.”
The team’s research relied on data from Webb’s CAnadian NIRISS Unbiased Cluster Survey (CANUCS), which includes near-infrared images from NIRCam (Near-Infrared Camera) and spectra from the microshutter array aboard NIRSpec (Near-Infrared Spectrograph). The CANUCS data intentionally covered a field that NASA’s Hubble Space Telescope imaged as part of its Cluster Lensing And Supernova survey with Hubble (CLASH) program.
This work has been published on December 11, 2024 in the journal Nature.
The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency).
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Media Contacts
Laura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Claire Blome – cblome@stsci.edu, Christine Pulliam – cpulliam@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
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Last Updated Dec 10, 2024 Editor Marty McCoy Contact Laura Betz laura.e.betz@nasa.gov Related Terms
Astrophysics Galaxies Galaxy clusters Goddard Space Flight Center Gravitational Lensing James Webb Space Telescope (JWST) Science & Research The Universe View the full article
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