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Gamma-ray Bursts: Harvesting Knowledge From the Universe’s Most Powerful Explosions
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By NASA
From left to right, NASA Marshall engineers Carlos Diaz and John Luke Bili, U.S. Naval Research Laboratory mechanical engineer contractor Eloise Stump, and Marshall engineers Tomasz Liz, David Banks, and Elise Doan observe StarBurst in the cleanroom environment before it’s unboxed from its shipping container. The cleanroom environment at Marshall is designed to minimize contamination and protect the observatory’s sensitive instruments. Image Credit: NASA /Daniel Kocevski StarBurst, a wide-field gamma ray observatory, arrived at NASA’s Marshall Space Flight Center in Huntsville, Alabama, March 4 for environmental testing and final instrument integration. The instrument is designed to detect the initial emission of short gamma-ray bursts, a key electromagnetic indicator of neutron star mergers.
“Gamma-ray bursts are among the most powerful explosions in the universe, and they serve as cosmic beacons that help us understand extreme physics, including black hole formation and the behavior of matter under extreme conditions,” said Dr. Daniel Kocevski, principal investigator of the StarBurst mission at NASA Marshall.
According to Kocevski, neutron star mergers are particularly exciting because they produce gamma-ray bursts and gravitational waves, meaning scientists can study these events using two different signals – light and ripples in space time.
Starburst Principal Investigator Dr. Daniel Kocevski, left, and Integration and Test Engineer Elise Doan, right, pose with the StarBurst instrument after it was unboxed in the cleanroom environment at NASA Marshall. The Naval Research Lab transferred the instrument to NASA in early March.Image Credit: NASA/Davy Haynes The merging of neutron stars forges heavy elements such as gold and platinum, revealing the origins of some of Earth’s building blocks.
“By studying these gamma-ray bursts and the neutron star mergers that produce them, we gain insights into fundamental physics, the origins of elements, and even the expansion of the universe,” Kocevski said. “Neutron star mergers and gamma-ray bursts are nature’s laboratories for testing our understanding of the cosmos.”
StarBurst will undergo flight vibration and thermal vacuum testing at Marshall in the Sunspot Thermal Vacuum Testing Facility. These tests ensure it can survive the rigors of launch and harsh environment of space.
Final instrument integration will happen in the Stray Light Facility, which is a specialized environment to help identify and reduce unwanted light in certain areas of the optical systems.
The StarBurst Multimessenger Pioneer is a wide-field gamma-ray observatory designed to detect the initial emission of short gamma-ray bursts, important electromagnetic indicators of neutron star mergers. With an effective area over five times that of the Fermi Gamma-ray Burst Monitor and complete visibility of the unobscured sky, StarBurst will conduct sensitive observations. NASA/Daniel Kocevski StarBurst is a collaborative effort led by NASA’s Marshall Space Flight Center, with partnerships with the U.S. Naval Research Laboratory, the University of Alabama Huntsville, the Universities Space Research Association, and the UTIAS Space Flight Laboratory. StarBurst was selected for development as part of the NASA Astrophysics Pioneers program, which supports lower-cost, smaller hardware missions to conduct compelling astrophysics science.
To learn more about StarBurst visit:
https://science.nasa.gov/mission/starburst/
Media Contact:
Lane Figueroa
Marshall Space Flight Center
Huntsville, Alabama
256.544.0034
lane.e.figueroa@nasa.gov
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By European Space Agency
Help us uncover the secrets of the Sun! Our Solar Orbiter spacecraft has been watching the Sun since February 2020. With five years’ worth of data waiting to be explored, it’s time to dig in. The new ‘Solar Radio Burst Tracker’ Zooniverse project is ready for you.
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By NASA
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions 2 min read
Sols 4450-4451: Making the Most of a Monday
NASA’s Mars rover Curiosity acquired this image of its brightly lit workspace and its right-front wheel in the shadows, perched on some tall rocks. The rover used its Right Front Hazcam (Front Hazard Avoidance Camera) to capture the image on sol 4449 — or Martian day 4,449 of the Mars Science Laboratory mission — Feb. 10, 2025, at 10:44:45 UTC. NASA/JPL-Caltech Earth planning date: Monday, Feb. 10, 2025
Last Saturday around 20:00 Pacific Standard Time I saw a 22-degree halo encircling our mostly-full Moon and Mars; an entire planet hanging in the sky between our Moon and the atmospheric phenomenon. As I took in the view I wondered what our rover was doing at that moment… turns out the Sun had just risen over Gale crater and Curiosity was still asleep, waiting for her alarm to go off in about 2.5 hours for another full day of science.
She wouldn’t start the weekend’s drive until Monday morning about 1:30, while I was still asleep waiting for my alarm to sound at 5:15. The drive’s data arrived on Earth about 5:30, and told us we drove until our time-of-day limit for driving — stopping about 36 meters (about 118 feet) away from Friday’s location. Unfortunately, our right-front wheel was shown to be perched on some tall rocks and we couldn’t quantify the drop risk if we unstowed the arm. We decided to play it safe and keep the arm stowed instead.
Today’s two-sol plan would normally be in “nominal” sols — meaning we’d get a full day of science and a drive on the second sol — but due to some DSN downtime on Earth we moved our drive to the first sol, therefore switching to “restricted” sols a bit earlier than usual after our last soliday. Even though we couldn’t plan contact science, we’re making the most of our plan with almost 90 minutes of remote sensing. Mastcam will take an approximately 24-frame stereo mosaic of Wilkerson butte to the north, and ChemCam will shoot their laser at a rock in our workspace named “Carbon Canyon,” as well as three separate RMI mosaics! We’ll then attempt to drive until our time-of-day limit of about 15:00 local Gale time, hopefully getting us to a more stable spot on Wednesday for contact science. The second sol contains our usual dust-devil surveys with Navcam, atmospheric opacity measurements with Mastcam, and a blind LIBS on a piece of bedrock the rover chooses autonomously.
Written by Natalie Moore, Mission Operations Specialist at Malin Space Science Systems
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Last Updated Feb 11, 2025 Related Terms
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By USH
A summer barbecue transformed into a nightmare when lightning split the sky above Somerset, England. Peter Williamson dashed across his rain-soaked lawn to rescue his terrified dog, unaware that his next step would carry him beyond the boundaries of our world.
His family watched in horror as a blinding flash illuminated his silhouette against the stormy sky. When their vision cleared, Peter had evaporated into thin air.
The police launched a search, but found no footprints, no scorch marks, and no explanation for how a man could disappear from a walled garden. Sixteen witnesses swore they watched him vanish in plain sight.
Three days passed before Peter materialized in his backyard, wearing unfamiliar clothes and carrying items that defied explanation. His memories painted a picture of a hospital that both existed and didn't exist, where reality shimmered like heat waves rising from summer pavement.
The investigation into his disappearance uncovered something extraordinary: evidence suggesting Peter had slipped through a crack between parallel universes.
A "crack between parallel universes" is a metaphorical concept in physics, often used to describe a hypothetical point or region where two separate parallel universes could potentially interact or intersect with each other, allowing for potential travel or communication between them.
If such a "crack" existed, it would likely demand extraordinarily extreme conditions, exactly the kind Peter Williamson encountered during his disappearance.
His impossible story forces us to question everything we think we know about the nature of reality.
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A massive hotspot — larger the Earth’s Lake Superior — can be seen just to the right of Io’s south pole in this annotated image taken by the JIRAM infrared imager aboard NASA’s Juno on Dec. 27, 2024, during the spacecraft’s flyby of the Jovian moon. NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM Even by the standards of Io, the most volcanic celestial body in the solar system, recent events observed on the Jovian moon are extreme.
Scientists with NASA’s Juno mission have discovered a volcanic hot spot in the southern hemisphere of Jupiter’s moon Io. The hot spot is not only larger than Earth’s Lake Superior, but it also belches out eruptions six times the total energy of all the world’s power plants. The discovery of this massive feature comes courtesy of Juno’s Jovian Infrared Auroral Mapper (JIRAM) instrument, contributed by the Italian Space Agency.
“Juno had two really close flybys of Io during Juno’s extended mission,” said the mission’s principal investigator, Scott Bolton of the Southwest Research Institute in San Antonio. “And while each flyby provided data on the tormented moon that exceeded our expectations, the data from this latest — and more distant — flyby really blew our minds. This is the most powerful volcanic event ever recorded on the most volcanic world in our solar system — so that’s really saying something.”
The source of Io’s torment: Jupiter. About the size of Earth’s Moon, Io is extremely close to the mammoth gas giant, and its elliptical orbit whips it around Jupiter once every 42.5 hours. As the distance varies, so does the planet’s gravitational pull, which leads to the moon being relentlessly squeezed. The result: immense energy from frictional heating that melts portions of Io’s interior, resulting in a seemingly endless series of lava plumes and ash venting into its atmosphere from the estimated 400 volcanoes that riddle its surface.
Close Flybys
Designed to capture the infrared light (which isn’t visible to the human eye) emerging from deep inside Jupiter, JIRAM probes the gas giant’s weather layer, peering 30 to 45 miles (50 to 70 kilometers) below its cloud tops. But since NASA extended Juno’s mission, the team has also used the instrument to study the moons Io, Europa, Ganymede, and Callisto.
Images of Io captured in 2024 by the JunoCam imager aboard NASA’s Juno show signif-icant and visible surface changes (indicated by the arrows) near the Jovian moon’s south pole. These changes occurred between the 66th and 68th perijove, or the point during Juno’s orbit when it is closest to Jupiter.Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Jason Perry During its extended mission, Juno’s trajectory passes by Io every other orbit, flying over the same part of the moon each time. Previously, the spacecraft made close flybys of Io in December 2023 and February 2024, getting within about 930 miles (1,500 kilometers) of its surface. The latest flyby took place on Dec. 27, 2024, bringing the spacecraft within about 46,200 miles (74,400 kilometers) of the moon, with the infrared instrument trained on Io’s southern hemisphere.
Io Brings the Heat
“JIRAM detected an event of extreme infrared radiance — a massive hot spot — in Io’s southern hemisphere so strong that it saturated our detector,” said Alessandro Mura, a Juno co-investigator from the National Institute for Astrophysics in Rome. “However, we have evidence what we detected is actually a few closely spaced hot spots that emitted at the same time, suggestive of a subsurface vast magma chamber system. The data supports that this is the most intense volcanic eruption ever recorded on Io.”
The JIRAM science team estimates the as-yet-unnamed feature spans 40,000 square miles (100,000 square kilometers). The previous record holder was Io’s Loki Patera, a lava lake of about 7,700 square miles (20,000 square kilometers). The total power value of the new hot spot’s radiance measured well above 80 trillion watts.
Picture This
The feature was also captured by the mission’s JunoCam visible light camera. The team compared JunoCam images from the two previous Io flybys with those the instrument collected on Dec. 27. And while these most recent images are of lower resolution since Juno was farther away, the relative changes in surface coloring around the newly discovered hot spot were clear. Such changes in Io’s surface are known in the planetary science community to be associated with hot spots and volcanic activity.
An eruption of this magnitude is likely to leave long-lived signatures. Other large eruptions on Io have created varied features, such as pyroclastic deposits (composed rock fragments spewed out by a volcano), small lava flows that may be fed by fissures, and volcanic-plume deposits rich in sulfur and sulfur dioxide.
Juno will use an upcoming, more distant flyby of Io on March 3 to look at the hot spot again and search for changes in the landscape. Earth-based observations of this region of the moon may also be possible.
“While it is always great to witness events that rewrite the record books, this new hot spot can potentially do much more,” said Bolton. “The intriguing feature could improve our understanding of volcanism not only on Io but on other worlds as well.”
More About Juno
NASA’s Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Juno mission for the principal investigator, Scott Bolton, of the Southwest Research Institute in San Antonio. Juno is part of NASA’s New Frontiers Program, which is managed at NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington. The Italian Space Agency (ASI) funded the Jovian InfraRed Auroral Mapper. Lockheed Martin Space in Denver built and operates the spacecraft. Various other institutions around the U.S. provided several of the other scientific instruments on Juno.
More information about Juno is available at:
https://www.nasa.gov/juno
News Media Contacts
DC Agle
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-9011
agle@jpl.nasa.gov
Karen Fox / Alana Johnson
NASA Headquarters, Washington
202-358-1600 / 202-358-1501
karen.c.fox@nasa.gov / alana.r.johnson@nasa.gov
Deb Schmid
Southwest Research Institute, San Antonio
210-522-2254
dschmid@swri.org
2025-010
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Last Updated Jan 28, 2025 Related Terms
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