NextSTEP-3 B: Moon Base Demonstrations

NextSTEP-3 B: Moon Base Demonstrations

An artist’s concept of astronauts working on the lunar surface.
An artist’s concept of astronauts working on the lunar surface.
NASA

Notice ID: Coming Soon

NASA’s Human Spaceflight Mission Directorate is seeking innovative ideas from industry partners through a new solicitation appendix under the NextSTEP-3 Omnibus Broad Agency Announcement. Appendix B: Moon Base Demonstrations calls for industry-led demonstrations, risk reduction, and special topic activities that enable an enduring human presence on the lunar surface.

NASA’s Moon Base, located in the lunar South Pole region, will serve as the premier proving ground for deep space exploration, empowering scientific discovery and the development of advanced space technologies. To accelerate phased implementation of the Moon Base, NASA is working with its partners to bridge the gap between technology development and mission operations.

This solicitation seeks industry proposals for concept demonstrations, risk reduction opportunities, and studies that address Moon Base architecture gaps. Awards will focus on the integration, demonstration, and maturation of concepts beyond component technology development. 

NASA Administrator Jared Isaacman and Carlos García-Galán, Moon Base program manager, announced this new opportunity during a discussion with media on Tuesday, June 30. NASA anticipates the solicitation will be posted to the System for Awards Management in early July.

The solicitation’s first directed topic call will be on surface power. Follow-on directed topic calls will solicit innovations in other topic areas listed below.

Solicitation Topics

  • Infrastructure
  • Power Systems
  • Communications & Positioning, Navigation, and Timing (C&PNT)
  • Transportation
  • Mobility
  • Habitation
  • Autonomy & Robotics
  • Lunar Science
  • Concepts of Operations
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Danny Baird

NASA Awards More Moon Base Science, Previews New Opportunities

NASA Awards More Moon Base Science, Previews New Opportunities

Three artist renderings depict commercial lunar landers from Astrobotic, Intuitive Machines, and Firefly on the Moon. NASA announced June 30 the landers will deliver more NASA science investigations and technology demonstrations to the lunar surface for NASA’s Moon Base Program.
Credit: Astrobotic/Intuitive Machines/Firefly

Editor’s note: This release was updated on June 30, 2026, to clarify the engineering development version for the PROMISE rover.

NASA announced Tuesday the selection of three companies to land four new missions on the Moon in late 2028 as part of the agency’s Moon Base Program. Astrobotic, Firefly Aerospace, and Intuitive Machines will deliver NASA science payloads to the lunar surface as the agency builds the first outpost on another celestial world.

“These new awards to our commercial partners, totaling nearly $600 million to land more missions on the Moon with science payloads, demonstrate our commitment to accelerating our effort to build a long-term presence on the lunar surface, and give us more opportunity to develop the skills we need to prosper there,” said Lori Glaze, associate administrator for the Human Spaceflight Mission Directorate at NASA Headquarters in Washington.

Astrobotic is awarded $297.9 million total for two deliveries, as well as Firefly Aerospace $144.2 million and Intuitive Machines $148.3 million for one delivery each as part of the agency’s CLPS (Commercial Lunar Payload Services) initiative, a backbone of the Moon Base. Each will use updated versions of already-flown lander designs to enable NASA’s increased mission cadence.

“We’re building a proving ground for Moon Base operations,” said Ryan Stephan, NASA’s Moon Base acting director of cargo landers. “Accelerating our Moon mission ordering cadence and launch opportunities enable us to move quickly to learn, iterate, and improve.”

With 17 lunar surface deliveries across multiple providers, NASA also announced new opportunities for American industry to contribute to the Moon Base. The agency is considering plans to send to the Moon, PROMISE (Polar Rover for Observation, Mapping, and In-Situ Exploration), a hybrid engineering development version of the Mars Perseverance and Curiosity rovers. Agency experts will define potential opportunities for PROMISE to characterize the lunar surface, subsurface, and prospect for resources.

In addition, NASA plans to solicit proposals in the coming months for lunar landers to deliver a power and avionics technology demonstration, another science manifest, and a South Pole optical imager. NASA also will share an open solicitation for Moon Base technology demonstrations and seek a lunar communication and navigation relay constellation to enable improved communication between Moon Base elements and Earth.

The awards announced June 30 will play a critical role in establishing the infrastructure for lunar surface operations. The companies are responsible for initiating and executing procurements, providing an assessment of a similar previous lunar lander, and incorporating lessons learned to improve the overall mission reliability.  

Each delivery will carry three NASA payloads to the lunar surface:

  • Stereo Camera for Lunar Plume Surface Studies (SCALPSS): An array of four cameras that uses a technique called stereo photogrammetry to produce a 3D view of the impact of an engine’s exhaust plume on lunar dust as the lander descends on the Moon’s surface. Collecting data from a variety of engine sizes, propellants, and landing locations, these high-resolution stereo images will aid in creating models to predict lunar dust erosion and ejecta characteristics, playing a vital role as bigger, heavier spacecraft and hardware are delivered to the Moon near each other.
  • Laser Retroreflector Array (LRA): Reflects laser beams transmitted by Moon orbiters or landing spacecraft to help them determine their orbit position or navigate to the surface. A small cookie-sized device made of eight quartz corner-cube prisms set into a dome-shaped aluminum frame, the array is passive, requiring no power or maintenance. These arrays have flown on previous CLPS landers and international lunar landers and will continue to be used to build a network of permanent location markers on the Moon for future exploration.
  • Linear Energy Transfer Spectrometer (LETS): Helps to better understand the radiation environment from a variety of lunar transit approaches and at different locations on the lunar surface. Derived from heritage hardware, this radiation monitor uses a tiny, advanced silicon detector to measure the energy carried by incoming space radiation. It will provide information about how strong radiation is and what kind of radiation is hitting the lunar surface, and provides the kind of detailed radiation data NASA needs to design safer missions, protect astronauts, and plan long‑duration exploration.

The agency also is reviewing options for these landers to deliver potential additional payloads to the Moon.

“By flying the same science instruments on multiple landers, we will better understand potential hazards during landing and build out a global network of environmental data and location markers on the Moon,” said Joel Kearns, deputy associate administrator for exploration, Science Mission Directorate, NASA Headquarters. “It’s akin to having weather stations in different locations on Earth. These three payloads are flight-proven and their data is critical to supporting safe human exploration of the lunar surface.”

NASA is advancing development of the Moon Base, a long-term lunar exploration and infrastructure initiative designed to enable sustained human presence and expanded scientific and commercial activity on the lunar surface.

As part of the Golden Age of innovation and exploration, NASA will send astronauts on increasingly difficult missions to explore more of the Moon for scientific discovery, economic benefits, and to build on our foundation for the first crewed missions to Mars.

For more information about NASA’s Moon Base plans, visit:

https://www.nasa.gov/moonbase

-end-

Rachel Kraft / Molly Wasser
Headquarters, Washington
202-358-1600
rachel.h.kraft@nasa.gov / molly.l.wasser@nasa.gov

Ivry Artis / Kenna Pell
Johnson Space Center, Houston
281-483-5111
ivry.w.artis@nasa.gov / kenna.m.pell@nasa.gov

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Lauren E. Low

Spacewalkers Continuing Canadarm2 Robotic Arm Repairs

Spacewalkers Continuing Canadarm2 Robotic Arm Repairs

NASA astronaut Chris Williams conducts a spacewalk 260 miles above Earth to repair the Canadarm2 robotic arm on the International Space Station
NASA astronaut Chris Williams conducts a spacewalk 260 miles above Earth on June 30, 2026, to repair the Canadarm2 robotic arm on the International Space Station.
NASA+

NASA astronauts Chris Williams and Jessica Meir successfully removed the wrist joint that malfunctioned on May 27 during Canadarm2 robotic arm operations. They now are working to install the replacement joint, which was already attached to the orbital complex.

NASA astronauts Chris Williams and Jessica Meir successfully removed the wrist joint that malfunctioned on May 27 during Canadarm2 robotic arm operations. They now are working to install the replacement joint, which was already attached to the orbital complex. 

Learn more about station activities by following @NASASpaceOps and @space_station on X, as well as the International Space Station’s Facebook and Instagram accounts.

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Mark A. Garcia

Astronauts Begin Spacewalk to Repair Canadarm2 Robotic Arm

Astronauts Begin Spacewalk to Repair Canadarm2 Robotic Arm

NASA astronauts Chris Williams and Jessica Meir are pictured training for a spacewalk in their spacesuits at NASA's Neutral Buoyancy Laboratory in Houston, Texas.
NASA astronauts Chris Williams and Jessica Meir are pictured training for a spacewalk in their spacesuits at NASA’s Neutral Buoyancy Laboratory in Houston, Texas.
NASA

NASA astronauts Chris Williams and Jessica Meir began a spacewalk at 8:20 a.m. EDT today to replace a wrist joint that malfunctioned during normal Canadarm2 operations on May 27.

Live coverage continues on NASA+, Amazon Prime, Netflix, and the agency’s YouTube channel. Learn how to watch NASA content through a variety of online platforms, including social media.

Williams is spacewalk crew member 1, wearing the suit with red stripes. Meir is crew member 2, wearing the unmarked suit.

Learn more about station activities by following @NASASpaceOps and @space_station on X, as well as the International Space Station’s Facebook and Instagram accounts.

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Mark A. Garcia

A Most “Pleasantly Situated” Estate

A Most “Pleasantly Situated” Estate

A Most “Pleasantly Situated” Estate
August 25, 2024

Editor’s note: In honor of America’s 250th birthday, Earth Observatory is revisiting stories about the landscapes that helped shape U.S. history. The images and text on this page were originally published on February 17, 2025. Explore the full collection here.

George Washington was born in 1732 on his family’s tobacco plantation at Popes Creek in Westmoreland County, Virginia. Three years later, he moved up the Potomac River to Little Hunting Creek Plantation, a property later renamed Mount Vernon. The riverside property, approximately 15 miles (24 kilometers) south of Washington, D.C., was central to the man who became the first U.S. president.

Though the family soon moved to Fredericksburg, Virginia, and resided there for much of his youth, Washington began managing the Mount Vernon property in 1759, soon after his marriage to Martha Dandridge. Washington’s letters make clear that he cherished and longed for this place during his long absences as a surveyor, military commander, and politician—a location he called the most “pleasantly situated” estate in the United States. It was where he helped raise two stepchildren, four step-grandchildren, and an array of crops and livestock. It was also where he was laid to rest in 1799 at the age of 67.

The OLI (Operational Land Imager) on Landsat 8 captured this image of Mount Vernon and its surroundings on August 25, 2024. While much of the land surrounding the estate has been developed into things like suburban neighborhoods, shopping areas, and military bases, fragments of the pristine forests, farmland, and riverscapes that Washington would recognize remain.

In a 1793 letter to Arthur Young, an English agricultural expert and reformer, Washington expounded on the virtues of Mount Vernon’s land.

It lyes in a high, dry & healthy country, 300 miles by water from the Sea—and, as you will see by the plan, on one of the finest Rivers in the world. Its margin is washed by more than ten miles of tidewater; from the bed of which, and the enumerable coves, inlets & small marshes with which it abounds, an inexhaustable fund of rich mud may be drawn as a manure; either to be used seperately, or in a compost.

Toward the end of his life, Washington’s land holdings extended across five farms centered on Mount Vernon. The map below, based on one of Washington’s drawings, shows their layout. The Mansion House Farm encompassed Mount Vernon, with Union Farm and Dogue Run Farm to the west. Muddy Hole Farm lay to the north and River Farm to the east.

An 1801 map of Mount Vernon from a drawing provided by George Washington. Four other farms that were part of Washington’s land holdings are situated around Mount Vernon.

Washington was known as an innovative landowner who, with the labor of hundreds of enslaved people, took unusual care to manage his crops sustainably. For instance, he shifted much of his production to wheat and corn and started experimenting with a seven-year crop rotation system and cover crops to better preserve the health of his soil after realizing that growing tobacco depleted its fertility.

While most crops were raised at the outlying farms, Mount Vernon’s gardens were showcases for visitors and laboratories for experimentation. The showy upper garden was a formal garden near the mansion with carefully trimmed dwarf boxwood hedges and a heated greenhouse with lemons, oranges, and rare plants.

Closer to the river was the lower garden, a kitchen garden brimming with vegetables, and a small garden that Washington called “my botanick garden,” where he spent much of his time experimenting with new varieties. Even closer to the river was the fruit garden, an experimental orchard where the estate raised pears, cherries, peaches, and apples. This may have been the source of the centuries-old preserved cherries that archaeologists unearthed in Mount Vernon’s cellar in 2024.

A wider view of the satellite image includes more of the Potomac River and all of Washington, D.C.

The lands connecting the five farms—his “wilderness,” Washington called it—were a forested area where he often spent time hunting and fishing. Species such as oak, hickory, and heath shrubs dominated the forests in Washington’s time. Dozens of the same plant species from that period are still found on the estate’s forests in modern times, though large numbers of non-native species have established themselves as well.

One of the larger open spaces visible in the Landsat image above is Fort Hunt Park. Once part of Washington’s River Farm, Fort Hunt was constructed in 1897 to bolster Washington D.C.’s defenses during a period of heightened tensions with Spain. Across the Potomac River stands Fort Washington Park, home to ruins of a fort that was used to defend the city during the Mexican-American War and the American Civil War.

Across the river in Maryland lies another property with a connection to George and Martha Washington. National Colonial Farm in Piscataway Park was established in 1958 to preserve the couple’s beloved views across the Potomac. Today, National Colonial Farm is a living farm museum and features several 18th-century heirloom varieties of herbs, flowers, and vegetables, including “Orinoco” tobacco, red May wheat, and Virginia white gourdseed corn.

NASA Earth Observatory images by Michala Garrison, using Landsat data from the U.S. Geological Survey. Map of Washington’s farm courtesy of the Library of Congress. Story by Adam Voiland.

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