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By NASA
Insights into metal alloy solidification
Researchers report details of phase and structure in the solidification of metal alloys on the International Space Station, including formation of microstructures. Because these microstructures determine a material’s mechanical properties, this work could support improvements in techniques for producing coatings and additive manufacturing or 3D printing processes.
METCOMP, an ESA (European Space Agency) investigation, studied solidification in microgravity using transparent organic mixtures as stand-ins for metal alloys. Conducting the research in microgravity removed the influence of convection and other effects of gravity. Results help scientists better understand and validate models of solidification mechanisms, enabling better forecasting of microstructures and improving manufacturing processes.
Image from the METCOMP investigation of how a metal alloy could look like as it solidifies. E-USOC Measuring the height of upper-atmospheric electrical discharges
Researchers determined the height of a blue discharge from a thundercloud using ground-based electric field measurements and space-based optical measurements from Atmosphere-Space Interactions Monitor (ASIM). This finding helps scientists better understand how these high-altitude lightning-related events affect atmospheric chemistry and could help improve atmospheric models and climate and weather predictions.
ESA’s ASIM is an Earth observation facility that studies severe thunderstorms and upper-atmospheric lighting events and their role in the Earth’s atmosphere and climate. Upper-atmospheric lightning, also known as transient luminous events, occurs well above the altitudes of normal lightning and storm clouds. The data collected by ASIM could support research on the statistical properties of many upper atmosphere lightning events, such as comparison of peak intensities of blue and red pulses with reports from lightning detection networks.
An artist’s impression of a blue jet as observed from the International Space Station.Mount Visual/University of Bergen/DTU Modeling a complex neutron star
Scientists report that they can use modeling of neutron star PSRJ1231−1411’s X-ray pulses to infer its mass and radius and narrow the possible behaviors of the dense matter at its core. This finding provides a better understanding of the composition and structure of these celestial objects, improving models that help answer questions about conditions in the universe.
The Neutron star Interior Composition Explorer provides high-precision measurements of pulses of X-ray radiation from neutron stars. This particular neutron star presented challenges in finding a fit between models and data, possibly due to fundamental issues with its pulse profile. The authors recommend a program of simulations using synthetic data to determine whether there are fundamental issues with this type of pulse profile that could prevent efforts to obtain tighter and more robust constraints.
Concentrators on the Neutron star Interior Composition Explorer instrument.NASAView the full article
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By NASA
Measurements from space support wildfire risk predictions
Researchers demonstrated that data from the International Space Station’s ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) instrument played a significant role in the ability of machine learning algorithms to predict wildfire susceptibility. This result could help support development of effective strategies for predicting, preventing, monitoring, and managing wildfires.
As the frequency and severity of wildfires increases worldwide, experts need reliable models of fire susceptibility to protect public safety and support natural resource planning and risk management. ECOSTRESS measures evapotranspiration, water use efficiency, and other plant-water dynamics on Earth. Researchers report that its water use efficiency data consistently emerged as the leading factor in predicting wildfires, with evaporative stress and topographic slope data also significant.
This ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station evapotranspiration image of California’s Central Valley in May 2022 shows high water use (blue) and dry conditions (brown). NASA Combining instruments provides better emissions data
Scientists found that averaging data from the International Space Station’s OCO‐3 and EMIT external instruments can accurately measure the rate of carbon dioxide emissions from power plants. This work could improve emissions monitoring and help communities respond to climate change.
Carbon dioxide emissions from fossil fuel combustion make up nearly a third of human-caused emissions and are a major contributor to climate change. In many places, though, scientists do not know exactly how much carbon dioxide these sources emit. The Orbiting Carbon Observatory-3 or OCO-3 can quantify emissions over large areas and Earth Surface Mineral Dust Source Investigation data can help determine emissions from individual facilities. The researchers suggest future work continue to investigate the effect of wind conditions on measurements.
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The The Orbiting Carbon Observatory-3 data showing carbon dioxide concentrations in Los Angeles. NASA Thunderstorm phenomena observed from space
Observations by the International Space Station’s Atmosphere-Space Interactions Monitor (ASIM) instrument during a tropical cyclone in 2019 provide insight into the formation and nature of blue corona discharges often observed at the tops of thunderclouds. A better understanding of such processes in Earth’s upper atmosphere could improve atmospheric models and weather and climate predictions.
Scientists do not fully understand the conditions that lead to formation of blue corona discharges, bursts of electrical streamers, which are precursors to lightning. Observations from the ground are affected by scattering and absorption in the clouds. ASIM, a facility from ESA (European Space Agency), provides a unique opportunity for observing these high-atmosphere events from space.
View of Atmosphere-Space Interactions Monitor, the white and blue box on the end of the International Space Station’s Columbus External Payload Facility. NASAView the full article
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By NASA
Learn Home First NASA Neurodiversity… Heliophysics Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 2 min read
First NASA Neurodiversity Network Intern to Present at the American Geophysical Union Annual Conference
The NASA Science Activation Program’s NASA’s Neurodiversity Network (N3) project sponsors a summer internship program for high school students, in which learners on the autism spectrum are matched with NASA Subject Matter Experts. N3 intern Lillian Hall and mentor Dr. Juan Carlos Martinez Oliveros presented Lilly’s summer research project on December 9 at the 2024 American Geophysical Union conference in Washington, D.C. Their poster, entitled “Eclipse Megamovie: Image Processing”, represents the first time an N3 intern has co-authored a presentation at the prestigious AGU conference.
The NASA Citizen Science project, Eclipse Megamovie, is leveraging the power of citizen science to construct a high-resolution time-lapse of the Sun’s corona during the April 8, 2024 total solar eclipse. By coordinating the work of hundreds of participants along the path of totality, a substantial dataset of images was obtained. The goal of the project is to unveil dynamic transformations in the Sun’s atmosphere that are only visible during a total solar eclipse.
To process the vast quantity of imaging data collected, Lilly assisted Dr. Martinez Oliveros and other researchers in implementing a robust pipeline involving image calibration, registration, and co-location. Image registration techniques aligned the solar features across different frames, compensating for Earth’s rotation and camera movement. Finally, they used imaging techniques to enhance the signal-to-noise ratio, revealing subtle coronal structures and possible dynamics. This comprehensive data processing methodology has enabled the extraction of meaningful scientific information from the Eclipse Megamovie dataset.
Here’s what Lilly had to say: “Working with N3 has given me a chance to use my neurodiverse perspective to make an impact on NASA research. Through the processes of my project and the opportunity to share it at the American Geophysical Union conference, I am so grateful to have found my spot in the planetary science field I dream to continue researching in the future.”
Learn more about NASA Citizen Science and how you can participate (participation does not require citizenship in any particular country): https://science.nasa.gov/citizen-science/
The N3 project is supported by NASA under cooperative agreement award number 80NSSC21M0004 and is part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn
https://www.agu.org/annual-meeting/schedule
Lilly Hall with her Eclipse Megamovie Image Processing poster. Kristen Hall Share
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Last Updated Jan 10, 2025 Editor NASA Science Editorial Team Related Terms
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By NASA
6 min read
NASA Research To Be Featured at American Astronomical Society Meeting
In this mosaic image stretching 340 light-years across, Webb’s Near-Infrared Camera (NIRCam) displays the Tarantula Nebula star-forming region in a new light, including tens of thousands of never-before-seen young stars that were previously shrouded in cosmic dust. The most active region appears to sparkle with massive young stars, appearing pale blue. NASA, ESA, CSA, STScI, Webb ERO Production Team From new perspectives on the early universe to illuminating the extreme environment near a black hole, discoveries from NASA missions will be highlighted at the 245th meeting of the American Astronomical Society (AAS). The meeting will take place Jan. 12-16 at the Gaylord National Resort & Convention Center in National Harbor, Maryland.
Press conferences highlighting results enabled by NASA missions will stream live on the AAS Press Office YouTube channel. Additional agency highlights for registered attendees include:
NASA Town Hall: Monday, Jan. 13, 12:45 p.m. EST Nancy Grace Roman Space Telescope Town Hall: Tuesday, Jan. 14, 6:30 p.m. EST James Webb Space Telescope Town Hall: Wednesday, Jan. 15, 6:30 p.m. EST Throughout the week, experts at the NASA Exhibit Booth will deliver science talks about missions including NASA’s James Webb Space Telescope (also called “Webb” or “JWST”), Hubble Space Telescope, Chandra X-ray Observatory, TESS (Transiting Exoplanet Survey Satellite), and NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station that will be repaired in a spacewalk Jan. 16. Talks will also highlight future missions such as Pandora, Roman, LISA (Laser Interferometer Space Antenna), the Habitable Worlds Observatory, and SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer), which is targeted to launch in late February; as well as mission concepts for NASA’s new Probe Explorers mission class in astrophysics, open science, heliophysics, and NASA Science Activation.
Members of the media can request interviews with NASA experts on any of these topics by contacting Alise Fisher at alise.m.fisher@nasa.gov.
Schedule of Highlights (EST)
Monday, Jan. 13
10 a.m.: Special Session – “SPHEREx: The Upcoming All-Sky Infrared Spectroscopic Survey”
Chesapeake 4-5
10 a.m.: Special Session – “Early Science Results from XRISM [X-Ray Imaging and Spectroscopy Mission]”
National Harbor 10
10:15 a.m.: AAS News Conference – “A Feast of Feasting Black Holes”
Maryland Ballroom 5/6
News based on data from NASA’s Neil Gehrels Swift Observatory, NICER, NuSTAR (Nuclear Spectroscopic Telescope Array), and Hubble, as well as XMM-Newton, an ESA (European Space Agency) mission with NASA contributions, will be featured:
“Witnessing the Birth of a New Plasma Jet from a Supermassive Black Hole” “Rapidly Evolving X-Ray Oscillations in the Active Galaxy 1ES 1927+654” “Uncovering the Dining Habits of Supermassive Black Holes in Our Cosmic Backyard with NuLANDS” “The Discovery of a Newborn Quasar Jet Triggered by a Cosmic Dance” 12:45 p.m.: NASA Town Hall
Mark Clampin, acting deputy associate administrator, Science Mission Directorate at NASA Headquarters
Potomac Ballroom AB
2:15 p.m.: AAS News Conference – “Supernovae and Massive Stars”
Maryland Ballroom 5/6
News from NASA’s Webb and Hubble space telescopes will be highlighted:
“JWST Discovery of a Distant Supernova Linked to a Massive Progenitor in the Early Universe” “Core-Collapse Supernovae as Key Dust Producers: New Insights from JWST” “JWST Tracks the Expanding Dusty Fingerprints of a Massive Binary” “Stellar Pyrotechnics on Display in Super Star Cluster” “A Blue Lurker Emerges from a Triple-System Merger” Tuesday, Jan. 14
10:15 a.m.: AAS News Conference – “Black Holes & New Outcomes from the Sloan Digital Sky Survey”
Maryland Ballroom 5/6
News based on data from NASA’s NuSTAR, Chandra, and Webb missions will be highlighted:
“A Variable X-Ray Monster at the Epoch of Reionization” “JWST’s Little Red Dots and the Rise of Obscured Active Galactic Nuclei in the Early Universe” “Revealing the Mid-Infrared Properties of the Milky Way’s Supermassive Black Hole” 2 p.m.: Special Session – “Open Science: NASA Astrophysics in the Roman Era”
Chesapeake 4-5
2:15 p.m.: AAS News Conference – “New Information from Milky Way Highlights”
Maryland Ballroom 5/6
News from NASA’s Webb and Chandra missions will be highlighted:
“Infrared Echoes of Cassiopeia A Reveal the Dynamic Interstellar Medium” “A Path-Breaking Observation of the Cold Neutral Medium of the Milky Way Through Thermal Light Echoes” “X-Ray Echoes from Sgr A* Provide Insight on the 3D Structure of Molecular Clouds in the Galactic Center” 3:40 p.m.: Plenary – “A Detector Backstory: How Silicon Detectors Came to Enable Space Missions”
Shouleh Nikzad, NASA’s Jet Propulsion Laboratory
Potomac Ballroom AB
6:30 p.m.: Nancy Grace Roman Space Telescope Town Hall
National Harbor 11
Wednesday, Jan. 15
8 a.m.: Plenary – “HEAD Bruno Rossi Prize Lecture: The Imaging X-ray Polarimetry Explorer (IXPE)”
Martin Weisskopf, NASA’s Marshall Space Flight Center (emeritus), and Paolo Soffitta, INAF-IAPS (National Institute for Astrophysics-Institute of Space Astrophysics and Planetology)
Potomac Ballroom AB
10 a.m.: Special Session – Habitable Worlds Observatory
Potomac Ballroom C
10:15 a.m.: AAS News Conference – “Discovering the Universe Beyond Our Galaxy”
Maryland Ballroom 5/6
News from NASA’s Hubble and Webb will be highlighted:
“The Hubble Tension in Our Own Backyard” “JWST Reveals the Early Universe in Our Backyard” “Growing in the Wind: Watching a Galaxy Seed Its Environment” 11:40 a.m.: Plenary – “Are We Alone? The Search for Life on Habitable Worlds”
Giada Arney, NASA’s Goddard Space Flight Center
Potomac Ballroom AB
2:15 p.m.: AAS News Conference – “New Findings About Stars”
Maryland Ballroom 5/6
News based on data from NASA’s Webb and Solar Dynamics Observatory will be highlighted:
“A Super Star Cluster Is Born: JWST Reveals Dust and Ice in a Stellar Nursery” “The Discovery of Ancient Relics in a Distant Evolved Galaxy” “Exploring the Sun’s Active Regions in the Moments Before Flares” 6:30 p.m.: James Webb Space Telescope Town Hall
Potomac Ballroom C
Thursday, Jan. 16
10:15 a.m.: AAS News Conference – “Exoplanets: From Formation to Disintegration”
Maryland Ballroom 5/6
News from NASA’s Pandora, Chandra, TESS, and Webb missions, as well as XMM-Newton, will be highlighted:
“A New NASA Mission to Characterize Exoplanets and Their Host Stars” “X-Rays in the Prime of Life: Irradiating Vulnerable Planets” “Bright Star, Fading World: Dusty Debris of a Dying Planet” “JWST Exposes Hot Rock Entrails from a Planet’s Demise” 2:15 p.m.: AAS News Conference – “Galactic Histories and Policy Futures”
Maryland Ballroom 5/6
News from NASA’s Webb and Hubble will be highlighted:
“The Boundary of Galaxy Formation: Constraints from the Ancient Star Formation of the Isolated, Extremely Low-Mass Galaxy Leo P” “Resolving 90 Million Stars in the Southern Half of Andromeda” For more information on the meeting, including press registration and the complete meeting schedule, visit:
https://aas.org/meetings/aas245
Media Contacts
Alise Fisher / Liz Landau
Headquarters, Washington
202-358-2546 / 202-358-0845
alise.m.fisher@nasa.gov / elizabeth.r.landau@nasa.gov
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Last Updated Jan 10, 2025 Related Terms
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By USH
During a live Fox News broadcast covering the intense Palisades wildfire in California, an unusual event captured viewers' attention. A camera aimed at the blazing inferno recorded a mysterious spherical object emerging suddenly from the middle of the flames. This object moved at a remarkable speed before vanishing over the treetops, leaving many wondering about its origin and purpose.
The object does not appear to be debris carried aloft by the fire’s updraft. Its trajectory and speed seem too controlled and deliberate to be a random effect of the wildfire. Additionally, the object shows no signs of explosion or disintegration, characteristics that might be expected if it were merely a piece of material affected by the intense heat.
Observers have ruled out common explanations such as birds, planes, or helicopters. The object’s rapid movement and apparent change in direction suggest advanced maneuverability, sparking comparisons to UFOs/UAPs.
With the growing number of reported sightings involving drones, orbs, and UFOs, the appearance of this potential UFO or drone in such an environment is especially intriguing. Could this object represent evidence of advanced technology monitoring Earth's natural disasters? Or is it an entirely natural but poorly understood phenomenon?
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