ISRU Archives

March 8, 2021March 8, 2021 by Scott Alan Johnston

NASA is Considering a Radio Telescope on the Far Side of the Moon

The University of Colorado Boulder and Lunar Resources Inc. have just won NASA funding to study the possibility of building a radio telescope on the far side of the Moon. The project, called FarView, would harvest building materials from the Lunar surface itself, and use robotic rovers to construct a massive, intricate network of wires and antennas across 400 square kilometers. When complete, FarView would allow radio astronomers to observe the sky in low-frequency radio wavelengths with unprecedented clarity.

March 4, 2021March 4, 2021 by Andy Tomaswick

Mining Water and Metal From the Moon at the Same Time

In-situ resource utilization (ISRU) is becoming a more and more popular topic as space exploration begins to focus on landing on the surface of other bodies in the solar system. ISRU focuses on making things that are needed to support the exploration mission out of materials that are easily accessible at the site being explored. Similar to how European explorers in the New World could build canoes out of the wood they found there.

Recently NASA’s Institute for Advanced Concepts (NIAC) has started looking more closely at a variety of ISRU projects as part of their Phase I Fellows program. One of the projects selected, led by Amelia Grieg at the University of Texas, El Paso, is a mining technique that would allow explorers to dig up water, metal, and other useful materials, all at the same time.

March 4, 2021March 4, 2021 by Andy Tomaswick

NASA Invests in a Plan to Build Landing Pads and Other Structures on the Moon out of Regolith

Materials are a crucial yet underappreciated component of any space exploration program. Without novel materials and ways to make them, things that are commonplace today, such as a Falcon 9 rocket or the Mars rovers, would never have been possible. As humanity expands into the solar system, it will need to make more use of the materials found there – a process commonly called in-situ resource utilization (ISRU). Now, the advanced concepts team at NASA has taken a step towards supporting that process by supporting a proposal from Dr. Sarbajit Banerjee, a chemist at Texas A&M. The proposal suggests using lunar regolith to build a stable landing pad for future moon missions.

November 30, 2020November 30, 2020 by Andy Tomaswick

Figuring Out How To Breathe the Moon’s Regolith

Oxygen ranks right up there as one of the most important resources for use in space exploration. Not only is it a critical component of rocket fuel, it’s also necessary for astronauts to breathe anywhere outside Earth’s atmosphere. Availability of this abundant resource isn’t a problem – it’s widely available throughout the solar system. One place it is particularly prevalent is lunar regolith, the thin material layer that makes up the moon’s surface. The difficulty comes from one of the quirks of oxygen – it bonds to almost everything.

Approximately 45% of the weight of regolith is oxygen, but it is bonded to materials such as iron and titanium. To utilize both the oxygen and the materials it’s bonded to they must be separated. And a British company, with support from the European Space Agency, has begun testing a technique to judge its potential effectiveness on the moon.

November 26, 2020November 26, 2020 by Matt Williams

The Moon has Resources, but Not Enough to Go Around

A geological map of the Moon showing different formations and mineral deposits. Credit: NASA/GSFC/USGS

It’s no secret that in this decade, NASA and other space agencies will be taking us back to the Moon (to stay, this time!) The key to this plan is developing the necessary infrastructure to support a sustainable program of crewed exploration and research. The commercial space sector also hopes to create lunar tourism and lunar mining, extracting and selling some of the Moon’s vast resources on the open market.

Ah, but there’s a snag! According to an international team of scientists led by the Harvard & Smithsonian Center for Astrophysics (CfA), there may not be enough resources on the Moon to go around. Without some clear international policies and agreements in place to determine who can claim what and where, the Moon could quickly become overcrowded, overburdened, and stripped of its resources.

October 28, 2020October 28, 2020 by Matt Williams

What Martian Settlers Need to Know About Soil Can Teach us How to Grow Better on Earth

Artist's impression of habitats for ecologically-sustainable living on Mars. Credit: DSE

When human beings start living in space for extended periods of time they will need to be as self-sufficient as possible. The same holds true for settlements built on the Moon, on Mars, and other bodies in the Solar System. To avoid being entirely dependent on resupply missions from Earth (which is costly and time-consuming) the inhabitants will need to harvest resources locally – aka. In-Situ Resource Utilization (ISRU).

This means they’ll have to procure their own sources of water, building materials, and grow their own food. While the ISS has allowed for all kinds of experiments involving hydroponics in space, little has been done to see how soil fares in microgravity (or lower gravity). To address this, Morgan Irons – Chief Science Officer of the Virginia-based startup Deep Space Ecology (DSE) – recently sent her Soil Health in Space experiment to the ISS.

September 15, 2020September 15, 2020 by Matt Williams

NASA Will Pay You to Retrieve Regolith and Rocks from the Moon

Artist's illustration of the new spacesuit NASA is designing for Artemis astronauts. It's called the xEMU,, or Exploration Extravehicular Mobility Unit. Image Credit: NASA

As part of Project Artemis, NASA intends to send the first woman and the next man to the Moon by 2024, in what will be the first crewed mission to the lunar since the Apollo Era. By the end of the decade, NASA also hopes to have all the infrastructure in place to create a program for “sustainable lunar exploration,” which will include the Lunar Gateway (a habitat in orbit) and the Artemis Base Camp (a habitat on the surface).

Part of this commitment entails the recovery and use of resources that are harvested locally, including regolith to create building materials and ice to create everything from drinking water to rocket fuel. To this end, NASA has asked its commercial partners to collect samples of lunar soil or rocks as part of a proof-of-concept demonstration of how they will scout and harvest natural resources and conduct commercial operations on the Moon.

June 8, 2020June 10, 2020 by Matt Williams

Practical Ideas for Farming on the Moon and Mars

When the International Space Station (ISS) runs low on basic supplies – like food, water, and other necessities – they can be resupplied from Earth in a matter of hours. But when astronauts go the Moon for extended periods of time in the coming years, resupply missions will take much longer to get there. The same holds true for Mars, which can take months to get there while also being far more expensive.

It’s little wonder then why NASA and other space agencies are looking to develop methods and technologies that will ensure that their astronauts have a degree of self-sufficiency. According to NASA-supported research conducted by Daniel Tompkins of Grow Mars and Anthony Muscatello (formerly of the NASA Kennedy Space Center), ISRU methods will benefit immensely from some input from nature.

April 2, 2020April 2, 2020 by Matt Williams

Mapping Out the Water on the Moon

In 2009, NASA launched the Lunar Reconnaissance Orbiter (LRO), the first mission to be sent by the US to the Moon in over a decade. Once there, the LRO conducted observations that led to some profound discoveries. For instance, in a series of permanently-shaded craters around the Moon’s South Pole-Aitken Basin, the probe confirmed the existence of abundant water ice.

Based on the temperature data obtained by the LRO of the Moon’s southern polar region, the ESA recently released a map of lunar water ice (see animation below) that will be accessible to future missions. This includes the ESA’s Package for Resource Observation and in-Situ Prospecting for Exploration, Commercial exploitation and Transportation (PROSPECT), which will be flown to the Moon by Russia’s Luna-27 lander in 2025.

October 10, 2019October 10, 2019 by Evan Gough

This is What Moondust Looks Like When You Remove All the Oxygen. A Pile of Metal

On the left side of this before and after image is a pile of simulated lunar soil, or regolith; on the right is the same pile after essentially all the oxygen has been extracted from it, leaving a mixture of metal alloys. Both the oxygen and metal could be used in future by settlers on the Moon. Image Credit: Beth Lomax - University of Glasgow

The Moon has abundant oxygen and minerals, things that are indispensable to any space-faring civilization. The problem is they’re locked up together in the regolith. Separating the two will provide a wealth of critical resources, but separating them is a knotty problem.