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By NASA
2 min read
Hubble Traces Star Formation in a Nearby Nebula
NASA, ESA, and L. C. Johnson (Northwestern University); Image Processing: Gladys Kober (NASA/Catholic University of America) NGC 261 blooms a brilliant ruby red against a myriad of stars in this new image from NASA’s Hubble Space Telescope. Discovered on Sept. 5, 1826 by Scottish astronomer James Dunlop, this nebula is located in one of the Milky Way’s closest galactic companions, the Small Magellanic Cloud (SMC). The ionized gas blazing from within this diffuse region marks NGC 261 as an emission nebula. It is home to numerous stars hot enough to irradiate surrounding hydrogen gas, causing the cloud to emit a pinkish-red glow.
This inset image shows the location of NGC 261 within the Small Magellanic Cloud. NASA, ESA, L. C. Johnson (Northwestern University), and ESO/VISTA VMC; Image Processing: Gladys Kober (NASA/Catholic University of America) Hubble turned its keen eye toward NGC 261 to investigate how efficiently stars form in molecular clouds, which are extremely dense and compact regions of gas and dust. These clouds often consist of large amounts of molecular hydrogen — cold areas where most stars form. However, measuring this raw fuel of star formation in stellar nurseries is a challenge because molecular hydrogen doesn’t radiate easily. Since it is difficult to detect, scientists instead trace other molecules present in the molecular clouds.
The SMC hosts a gas-rich environment of young stars along with trace amounts of carbon monoxide (CO), a chemical correlated with hydrogen and often used to identify the presence of such clouds. Using the Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3), Hubble imaged these stars in the southwest portion of the SMC where NGC 261 resides. The combined power of ACS and WFC3 allowed scientists to closely examine the nebula’s star-forming properties through its CO content at optical and near-infrared wavelengths. This research helps astronomers better understand how stars form in our home galaxy and others in our galactic neighborhood.
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Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov
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Last Updated Aug 28, 2024 Editor Michelle Belleville Location NASA Goddard Space Flight Center Related Terms
Astrophysics Galaxies Goddard Space Flight Center Hubble Space Telescope Stars Keep Exploring Discover More Topics From NASA
Hubble Space Telescope
Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.
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By NASA
4 Min Read NASA Seeks Input for Astrobee Free-flying Space Robots
iss069e010815 (May 16, 2023) — UAE (United Arab Emirates) astronaut and Expedition 69 Flight Engineer Sultan Alneyadi observes a free-flying Astrobee robotic assistant during the testing of its operations for an upcoming student competition to control the robotic devices. Credits: NASA NASA is seeking input from American companies for the operation and use of a system of free-flying robots aboard the International Space Station as the agency continues to foster scientific, educational, and technological developments in low Earth orbit for the benefit of all.
The colorful, cube-shaped robots – named “Bumble,” “Honey,” and “Queen” – are part of the Astrobee system helping astronauts and researchers perform technology demonstrations, scientific research, and STEM (science, technology, engineering and mathematics) activities in the unique environment of space since 2018.
“Dozens of institutions collaborate with NASA to use the Astrobee system to test new hardware and software technologies,” said Jose Benavides, project manager for the Astrobee facilities at NASA’s Ames Research Center in California’s Silicon Valley, where the system was designed and built. “I’m excited to hear how respondents think Astrobee can continue to advance robotics in space.”
NASA issued a Request for Information to inform strategic planning, inviting industry to provide information to help shape the maturation of robotics in zero gravity to achieve the greatest scientific and exploration value. Responses are due Sept. 27, 2024. To learn more about the Request for Information, visit:
https://sam.gov/opp/7893fe01e7bf4ae69029b5d8915e62c5/view
iss065e389375 (9/20/2021) — NASA astronaut Shane Kimbrough poses with the Astrobee robotic free-flyers in support of the Kibo Robot Programming Challenge (Robo-Pro Challenge). The Kibo-RPC, allows students to create programs to control Astrobee, a free-flying robot aboard the International Space Station (ISS). The battery-powered robots in the Astrobee system fly around the space station’s modules using electric fans for propulsion and “see” their surroundings using lights, cameras, and other sensors. They have interchangeable “arms” that provide ways for the robots to hold objects or keep steady for tasks requiring stability, and magnets to ensure they stay securely docked when recharging.
Working autonomously, or via remote control by astronauts, flight controllers, or researchers on the ground, the robots can be used to off-load time-consuming tasks. For instance, the robots can work independently or collaboratively to assist with routine chores like space station monitoring, maintenance, inventory, experiment documentation, or moving cargo throughout the station. This allows astronauts more time to tackle complex work that only humans can perform.
Astrobee’s versatile design has allowed thousands of hours of testing on hundreds of microgravity experiments. Many have involved astronauts, but the facility also is regularly used by researchers and student teams across the world competing for the opportunity to run their programs on the robots in space.
Further developing human-robotic technology will pave the way for future crewed and uncrewed spacecraft maintenance and exploration tasks done by robots both off-planet and in deep space"
Jonathan Barlow
Astrobee Project Manager
For example, NASA’s ISAAC (Integrated System for Autonomous and Adaptive Caretaking) project, used the Astrobees to study how robots could assist spacecraft, vehicle systems, and ground operators. The technology could help NASA use robot caretakers for critical spacecraft in the agency’s Moon-to-Mars plans, including the Gateway lunar space station and Mars transit habitat vehicle, especially during the months-long periods when these spacecraft will be uncrewed.
“Our ISAAC work has proved out its technology in a high-fidelity space environment because of the ready availability of the capable Astrobee robots,” said Trey Smith, project manager for ISAAC at NASA Ames.
The project demonstrated using multiple Astrobees to autonomously collect the first robot-generated survey of a spacecraft interior. Other ISAAC firsts include the first use of a robot to locate the source of a sound in space, in collaboration with the Bosch USA SoundSee payload team, and the first time robots navigated between modules of a space station. Future robots could use ISAAC technology to transfer cargo between space vehicles or respond to a time-critical fault like a leak due to a micrometeoroid impact, all without human assistance.
“With Astrobee, we’ve learned about flying multiple robots in space alongside humans,” said Jonathan Barlow, project manager for Astrobee at NASA Ames. “Further developing human-robotic technology will pave the way for future crewed and uncrewed spacecraft maintenance and exploration tasks done by robots both off-planet and in deep space.”
The Astrobee Facility, operated out of NASA’s Ames Research Center, provides a free-flying robotic system for space station research and STEM outreach. NASA’s Game Changing Development Program, part of the agency’s Space Technology Mission Directorate, funded Astrobee. NASA’s International Space Station Utilization Office provides ongoing funding.
iss071e464314 (Aug. 12, 2024) — NASA astronaut and Expedition 71 Flight Engineer Jeanette Epps monitors a pair of Astrobee robotic free-flying assistants as they demonstrate autonomous docking maneuvers inside the International Space Station’s Kibo laboratory module. The cube-shaped, toaster-sized devices were operating with a connecting interface system, called CLINGERS with an embedded navigation sensor, that may benefit construction in space.View the full article
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By NASA
Boeing’s Starliner spacecraft that launched NASA’s Crew Flight Test astronauts Butch Wilmore and Suni Williams to the International Space Station is pictured docked to the Harmony module’s forward port. This long-duration photograph was taken at night from the orbital complex as it soared 258 miles above western China. Leadership from NASA and Boeing will participate in a media teleconference at 11:30 a.m. EDT Thursday, July 25, to provide the latest status of the agency’s Boeing Crew Flight Test mission aboard the International Space Station.
Audio of the media teleconference will stream live on the agency’s website:
https://www.nasa.gov/nasatv
Participants include:
Steve Stich, manager, NASA’s Commercial Crew Program Mark Nappi, vice president and program manager, Commercial Crew Program, Boeing Media interested in participating must contact the newsroom at NASA’s Kennedy Space Center in Florida no later than one hour prior to the start of the call at ksc-newsroom@mail.nasa.gov. A copy of NASA’s media accreditation policy is online.
Engineering teams with NASA and Boeing recently completed ground hot fire testing of a Starliner reaction control system thruster at White Sands Test Facility in New Mexico. The test series involved firing the engine through similar in-flight conditions the spacecraft experienced during its approach to the space station, as well as various stress-case firings for what is expected during Starliner’s undocking and the deorbit burn that will position the spacecraft for a landing in the southwestern United States. Teams are analyzing the data from these tests, and leadership plans to discuss initial findings during the call.
NASA astronauts Butch Wilmore and Suni Williams arrived at the orbiting laboratory on June 6, after lifting off aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida on June 5. Since their arrival, the duo has been integrated with the Expedition 71 crew, performing scientific research and maintenance activities as needed.
As part of NASA’s Commercial Crew Program, the mission is an end-to-end test of the Starliner system. Following a successful return to Earth, NASA will begin the process of certifying Starliner for rotational missions to the International Space Station. Through partnership with American private industry, NASA is opening access to low Earth orbit and the space station to more people, science, and commercial opportunities.
For NASA’s blog and more information about the mission, visit:
https://www.nasa.gov/commercialcrew
-end-
Josh Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov
Steve Siceloff / Danielle Sempsrott / Stephanie Plucinsky
Kennedy Space Center, Florida
321-867-2468
steven.p.siceloff@nasa.gov / danielle.c.sempsrott@nasa.gov / stephanie.n.plucinsky@nasa.gov
Leah Cheshier / Sandra Jones
Johnson Space Center, Houston
281-483-5111
leah.d.cheshier@nasa.gov / sandra.p.jones@nasa.gov
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By NASA
Main Takeaways:
New 66-foot-wide antenna dishes will be built, online, and operational in time to provide near-continuous communications services to Artemis astronauts at the Moon later this decade. Called LEGS, short for Lunar Exploration Ground Sites, the antennas represent critical infrastructure for NASA’s vision of supporting a sustained human presence at the Moon. The first three of six proposed LEGS are planned for sites in New Mexico, South Africa, and Australia. LEGS will become part of NASA’s Near Space Network, managed by the agency’s Space Communications and Navigation (SCaN) program and led out of Goddard Space Flight Center in Greenbelt, Maryland. Background:
NASA’s LEGS can do more than help Earthlings move about the planet.
Three Lunar Exploration Ground Sites, or LEGS, will enhance the Near Space Network’s communications services and support of NASA’s Artemis campaign.
NASA’s Space Communications and Navigation (SCaN) program maintains the agency’s two primary communications networks — the Deep Space Network and the Near Space Network, which enable satellites in space to send data back to Earth for investigation and discovery.
Using antennas around the globe, these networks capture signals from satellites, collecting data and enabling navigation engineers to track the mission. For the first Artemis mission, these networks worked in tandem to support the mission as it completed its 25-day journey around the Moon. They will do the same for the upcoming Artemis II mission.
To support NASA’s Moon to Mars initiative, NASA is adding three new LEGS antennas to the Near Space Network. As NASA works toward sustaining a human presence on the Moon, communications and navigation support will be crucial to each mission’s success. The LEGS antennas will directly support the later Artemis missions, and accompanying missions like the human landing system, lunar terrain vehicle, and Gateway.
The Gateway space station will be humanity’s first space station in lunar orbit as a vital component of the Artemis missions to return humans to the Moon for scientific discovery and chart a path for humans to Mars.NASA “One of the main goals of LEGS is to offload the Deep Space Network,” said TJ Crooks, LEGS project manager at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “The Near Space Network and its new LEGS antennas will focus on lunar missions while allowing the Deep Space Network to support missions farther out into the solar system — like the James Webb Space Telescope and the interstellar Voyager missions.”
The Near Space Network provides communications and navigation services to missions anywhere from near Earth to 1.2 million miles away — this includes the Moon and Sun-Earth Lagrange points 1 and 2. The Moon and Lagrange points are a shared region with the Deep Space Network, which can provide services to missions there and farther out in the solar system.
An artist’s rendering of a lunar terrain vehicle on the surface of the Moon.NASA The LEGS antennas, which are 66 feet in diameter, will be strategically placed across the globe. This global placement ensures that when the Moon is setting at one station, it is rising into another’s view. With the Moon constantly in sight, the Near Space Network will be able to provide continuous support for lunar operations.
How it Works:
As a satellite orbits the Moon, it encodes its data onto a radio frequency signal. When a LEGS antenna comes into view, that satellite (or rover, etc.) will downlink the signal to a LEGS antenna. This data is then routed to mission operators and scientists around the globe who can make decisions about spacecraft health and orbit or use the science data to make discoveries.
The LEGS antennas are intended to be extremely flexible for users. For LEGS-1, LEGS-2, and LEGS-3, NASA is implementing a “dual-band approach” for the antennas that will allow missions to communicate using two different radio frequency bands — X-band and Ka-band. Typically, smaller data packets — like telemetry data — are sent over X-band, while high-resolution science data or imagery needs Ka-band. Due to its higher frequency, Ka-band allows significantly more information to be downlinked at once, such as real-time high-resolution video in support of crewed operations.
LEGS will directly support the Artemis campaign, including the Lunar Gateway, human landing system (HLS), and lunar terrain vehicle (LTV).NASA Further LEGS capacity will be sought from commercial service providers and will include a “tri-band approach” for the antennas using S-band in addition to X- and Ka-band.
The first LEGS ground station, or LEGS-1, is at NASA’s White Sands Complex in Las Cruces, New Mexico. NASA is improving land and facilities at the complex to receive the new LEGS-1 antenna.
The LEGS-2 antenna will be in Matjiesfontein, South Africa, located near Cape Town. In partnership with SANSA, the South African National Space Agency, NASA chose this location to maximize coverage to the Moon. South Africa was home to a ground tracking station outside Johannesburg that played a role in NASA’s Apollo missions to the Moon in the 1960s. The agency plans to complete the LEGS-2 antenna in 2026. For LEGS-3, NASA is exploring locations in Western Australia.
These stations will fully complement the existing capabilities of the Near and Deep Space Networks and allow for more robust communications services to the Artemis campaign.
The LEGS antennas (similar in appearance to this 20.2-meter CPI Satcom antenna) will be placed in equidistant locations across the globe. This ensures that when the Moon is setting at one station, it will be rising into another’s view. With the Moon constantly in sight, NASA’s Near Space Network will be able to support approximately 24/7 operations with Moon-based missions.CPI Satcom CPI Satcom is building the Lunar Exploration Ground Site (LEGS) antennas for NASA. The antennas will look very similar to the 20-meter antenna pictured here. CPI Satcom The Near Space Network is funded by NASA’s Space Communications and Navigation (SCaN) program office at NASA Headquarters in Washington and operated out of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
About the Author
Kendall Murphy
Technical WriterKendall Murphy is a technical writer for the Space Communications and Navigation program office. She specializes in internal and external engagement, educating readers about space communications and navigation technology.
5 Min Read Ground Antenna Trio to Give NASA’s Artemis Campaign ‘LEGS’ to Stand On
An artist’s rendering of astronauts working near NASA’s Artemis base camp, complete with a rover and RV. Credits: NASA Share
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Last Updated Jul 22, 2024 EditorKatherine SchauerContactKendall MurphyLocationGoddard Space Flight Center Related Terms
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By European Space Agency
As climate change drives more frequent and severe weather events, the need for accurate and timely forecasting has never been more critical. And now, the next Meteosat Third Generation weather satellite has passed its environmental test campaign with flying colours, taking it a significant step closer to launch.
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