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Discovery Alert: a ‘Hot Neptune’ in a Tight Orbit
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By NASA
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
The Milky Way pictured from the International Space Station in a long-duration photographCredits: NASA NASA and its commercial partners continue to drive innovation in space exploration, achieving milestones that will ultimately benefit human spaceflight and commercial low Earth orbit efforts. These recent achievements from NASA’s industry partners include completed safety milestones, successful flight tests, and major technological advancements.
“Our commercial partners’ growing capabilities in low Earth orbit underscore NASA’s commitment to advance scientific discovery, pioneering space technology, and support future deep space exploration,” said Angela Hart, manager of the Commercial Low Earth Orbit Development Program at NASA’s Johnson Space Center in Houston.
As NASA expands opportunities in low Earth orbit, the agency is working with seven U.S. companies to meet future commercial and government needs through the second Collaborations for Commercial Space Capabilities initiative.
The first and second stages of Blue Origin’s New Glenn test vehicle pictured at the company’s orbital launch vehicle factory in Cape Canaveral, FloridaCredits: Blue Origin Blue Origin
Blue Origin continues to make progress in the development of an integrated commercial space transportation capability that ensures safe, affordable, and high-frequency U.S. access to orbit for crew and other missions.
Northrop Grumman’s Cygnus spacecraft pictured approaching the International Space StationCredits: NASA Northrop Grumman
Northrop Grumman is evolving the company’s Cygnus spacecraft as a foundational logistics and research platform to support NASA’s next generation of low Earth orbit ventures. The company recently completed a project management review with NASA, presenting the roadmap and enhancements to commercialize the spacecraft. Northrop Grumman also continues to make progress toward the implementation of docking capability through a partnership with Starlab Space.
Sierra Space’s LIFE (Large Integrated Flexible Environment) habitat following a full-scale ultimate burst pressure test at NASA’s Marshall Space Flight Center in Huntsville, Alabama.Credits: Sierra Space Sierra Space
Sierra Space recently completed two full-scale ultimate burst pressure tests of its LIFE (Large Integrated Flexible Environment) habitat structure, an element of a NASA-funded commercial space station for new destinations in low Earth orbit. The company also has selected and tested materials for the habitat’s air barrier, focusing on permeability and flammability testing to meet the recommended safety standards. The inflatable habitat is designed to expand in orbit, creating a versatile living and working area for astronauts with a flexible, durable structure that allows for compact launch and significant expansion upon deployment.
Sierra Space also has advanced in high velocity impact testing and micro-meteoroid and orbital debris configuration and material selection, crucial for ensuring the safety and durability of the company’s space structures, along with advancing radiator designs to optimize thermal management for long-duration missions.
The SpaceX Starship spacecraft, a fully reusable transportation, ahead of a test flight at the company’s Starbase facilities in Boca Chica, Texas.Credits: SpaceX SpaceX
SpaceX continues developing the company’s Starship spacecraft, a fully reusable transportation system designed for missions to low Earth orbit, the Moon, Mars, and beyond. SpaceX completed multiple flight tests, launching the spacecraft on the Super Heavy, the launch system’s booster, from the company’s Starbase facility in Boca Chica, Texas. During the tests, SpaceX demonstrated key capabilities needed for the system’s reusability, including landing burns and reentry from hypersonic velocities.
SpaceX is preparing to launch newer generations of the Starship system, powered by upgraded versions of its reusable methane-oxygen staged-combustion Raptor engines, as it works to operationalize the system ahead of the first crewed lunar landing missions under the agency’s Artemis campaign.
An engineer for Special Aerospace Services tests the company’s Autonomous Maneuvering UnitCredits: Special Aerospace Services Special Aerospace Services
Special Aerospace Services is developing an Autonomous Maneuvering Unit that incorporates in-space servicing, propulsion, and robotic technologies. The company is evaluating customer needs and establishing the details and features for the initial flight unit. Special Aerospace Services also is working on a prototype unit at its Special Projects Research Facility in Arvada, Colorado, and has started construction of a new campus and final assembly facility in Huntsville, Alabama. The application of these technologies is intended for the safer assembly of commercial destinations, servicing, retrieval, and inspection of in-space systems.
Two twin containers hosting the welding experiment developed by ThinkOrbital, validated by NASA and ESA (European Space Agency),Credits: ThinkOrbital ThinkOrbital
ThinkOrbital recently demonstrated autonomous welding in space, validated by NASA and ESA (European Space Agency). The company will further test in-space welding, cutting, and X-ray inspection technologies on another mission later this year. ThinkOrbital’s third mission, scheduled for late 2025, will focus on developing commercially viable products, including a robotic arm with advanced end-effector solutions and standalone X-ray inspection capabilities. In-space welding technologies could enable building larger structures for future commercial space stations.
The qualification primary structure of Vast’s Haven-1 commercial space station during final welding stages at the company’s headquarters in Long Beach, California Credits: Vast Vast
Vast continues development progress on the Haven-1 commercial space station, targeted to launch in 2025. The company recently completed several technical milestones, including fabricating key components such as the primary structure pathfinder, hatch, battery module, and control moment gyroscope.
Vast also completed a solar array deployment test and the station’s preliminary design review with NASA’s support. While collaborating with the agency on developing and testing the commercial station’s dome-shaped window, Vast performed rigorous pressure testing to meet safety requirements.
In addition to these efforts, NASA also is collaborating with two businesses through its Small Business Innovation Research Ignite initiative, which focuses on commercially viable technology ideas aligned with the agency’s mission needs. Both companies are developing technologies for potential use on the International Space Station and future commercial space stations.
A ceramic heat shield, or thermal protection system, being developed by Canopy Aerospace Credits: Canopy Aerospace Canopy Aerospace
Canopy Aerospace is developing a new manufacturing system aimed at improving the production of ceramic heat shields, also known as thermal protection systems. The company recently validated the material properties of a low-density ceramic insulator using an alumina-enhanced thermal barrier formulation.
Canopy Aerospace also continues development of a 3D-printed, low-density ablator designed to provide thermal protection during extreme heating. The company also worked on other 3D-printed materials, such as aluminum nitride and oxide ceramic products, which could be useful in various applications across the energy, space, aerospace, and industrial sectors, including electromagnetic thrusters for satellites. Canopy Aerospace also developed standard layups of fiber-reinforced composites and integrated cork onto composite panels.
The Cargo Ferry, a reusable cargo transportation vehicle, prototype during a recent high-altitude flight test to test its recovery system and range capabilities.Credits: Outpost Technologies Outpost Technologies
Outpost Technologies completed a high-altitude flight test of its Cargo Ferry, a reusable cargo transportation vehicle. The company dropped a full-scale prototype from 82,000 feet via weather balloon to test its recovery system and range capabilities. The key innovation is a robotic paraglider that guides the vehicle to a precise landing. The paraglider deployed at a record-setting altitude of 65,000 feet, marking the highest flight ever for such a system.
During the test, the vehicle autonomously flew 165 miles before it was safely recovered at the landing site, demonstrating the system’s reliability. The company’s low-mass re-entry system can protect payload mass and volume for future space cargo return missions and point-to-point delivery.
NASA’s low Earth orbit microgravity strategy builds on the agency’s extensive human spaceflight experience to advance future scientific and exploration goals. As the International Space Station nears the end of operations, NASA plans to transition to a new low Earth orbit model to continue leveraging microgravity benefits. Through commercial partnerships, NASA aims to maintain its leadership in microgravity research and ensure continued benefits for humanity.
Learn more about NASA’s low Earth orbit microgravity strategy at:
https://www.nasa.gov/leomicrogravitystrategy
News Media Contacts
Claire O’Shea
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov
Anna Schneider
Johnson Space Center, Houston
281-483-5111
anna.c.schneider@nasa.gov
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By NASA
Artist’s concept of a young, newly discovered planet, exposed to observation by a warped debris disk. Credit: Robert Hurt, Caltech-IPAC. The discovery
A huge planet with a long name – IRAS 04125+2902 b – is really just a baby: only 3 million years old. And because such infant worlds are usually hidden inside obscuring disks of debris, it is the youngest planet so far discovered using the dominant method of planet detection.
Key facts
The massive planet, likely still glowing from the heat of its formation, lies in the Taurus Molecular Cloud, an active stellar nursery with hundreds of newborn stars some 430 light-years away. The cloud’s relative closeness makes it a prime target for astronomers. But while the cloud offers deep insight into the formation and evolution of young stars, their planets are usually a closed book to telescopes like TESS, the Transiting Exoplanet Survey Satellite. These telescopes rely on the “transit method,” watching for the slight dip in starlight when a planet crosses the face of its host star. But such planetary systems must be edge-on, from Earth’s vantage point, for the transit method to work. Very young star systems are surrounded by disks of debris, however, blocking our view of any potentially transiting planets.
A research team has just reported an extraordinary stroke of luck. Somehow, the outer debris disk surrounding this newborn planet, IRAS 04125+2902 b, has been sharply warped, exposing the baby world to extensive transit observations by TESS.
Details
While the warped outer disk is a great coincidence, it’s also a great mystery. Possible explanations include a migration of the planet itself, moving closer to the star and, in the process, diverging from the orientation of the outer disk – so that, from Earth, the planet’s orbit is edge-on, crossing the face of the star, but the outer disk remains nearly face-on to us. One problem with this idea: Moving a planet so far out of alignment with its parent disk would likely require another (very large) object in this system. None has been detected so far.
The system’s sun happens to have a distant stellar companion, also a possible culprit in the warping of the outer disk. The angle of the orbit of the companion star, however, matches that of the planet and its parent star. Stars and planets tend to take the gravitational path of least resistance, so such an arrangement should push the disk into a closer alignment with the rest of the system – not into a radical departure.
Another way to get a “broken” outer disk, the study authors say, would not involve a companion star at all. Stellar nurseries like the Taurus Molecular Cloud can be densely packed, busy places. Computer simulations show that rains of infalling material from the surrounding star-forming region could be the cause of disk-warping. Neither simulations nor observations have so far settled the question of whether warped or broken disks are common or rare in such regions.
Fun facts
Combining TESS’s transit measurements with another way of observing planets yields more information about the planet itself. We might call this second approach the “wobble” method. The gravity of a planet tugs its star one way, then another, as the orbiting planet makes its way around the star. And that wobble can be detected by changes in the light from the star, picked up by specialized instruments on Earth. Such “radial velocity” measurements of this planet reveal that its mass, or heft, amounts to no more than about a third of our own Jupiter. But the transit data shows the planet’s diameter is about the same. That means the planet has a comparatively low density and, likely, an inflated atmosphere. So this world probably is not a gas giant like Jupiter. Instead, it could well be a planet whose atmosphere will shrink over time. When it finally settles down, it could become a gaseous “mini-Neptune” or even a rocky “super-Earth.” These are the two most common planet types in our galaxy – despite the fact that neither type can be found in our solar system.
The discoverers
A science team led by astronomer Madyson G. Barber of the University of North Carolina at Chapel Hill published the study, “A giant planet transiting a 3 Myr protostar with a misaligned disk,” in the journal Nature in November 2024.
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By European Space Agency
ESA has taken another important step on the road towards sustainability in space with its first in-orbit servicing mission RISE. A €119 million contract was signed with D-Orbit as the co-funding prime contractor.
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