Featured Research

from universities, journals, and other organizations

Prospecting For Helium-3 On The Moon

Date:
December 2, 1998
Source:
American Geophysical Union
Summary:
Future prospectors on the Moon may be assisted by resource maps developed from research by scientists in Arizona and Hawaii. The resources they will be seeking are not gold or diamonds, but helium-3 [3He], an isotope that is rare on Earth, but more common on the Moon. Helium-3 is expected to be the cleanest fuel of choice for potential 21st century fusion reactors, because its reaction is efficient and produces low residual radioactivity.

WASHINGTON, D.C. -- Future prospectors on the Moon may be assisted by resource maps developed from research by scientists in Arizona and Hawaii. The resources they will be seeking are not gold or diamonds, but helium-3 [3He], an isotope that is rare on Earth, but more common on the Moon. Helium-3 is expected to be the cleanest fuel of choice for potential 21st century fusion reactors, because its reaction is efficient and produces low residual radioactivity.

Related Articles


Drs. Jeffrey R. Johnson of the U.S. Geological Survey in Flagstaff, Arizona; Timothy S. Swindle of the University of Arizona's Lunar and Planetary Laboratory in Tucson; and Paul G. Lucey of the University of Hawaii's Institute of Geophysics and Planetology in Honolulu have developed a helium-3 map of the Moon based on a combination of factors they have analyzed. Their research will be published in a forthcoming issue of Geophysical Research Letters, a publication of the American Geophysical Union, as "Estimated Solar Wind-Implanted Helium-3 Distribution On The Moon."

The factors taken into account by the researchers in mapping the likely abundance of helium-3 in a given area are the exposure age of the Moon's surface matter, or regolith; the relative amount of charged particles, including helium-3, arriving from the Sun (the solar wind); and the titanium content of the lunar soil. The mineral ilmenite [FeTiO3], composed of iron, titanium, and oxygen, retains helium much better than other major lunar materials. The older soils should be better sources of helium-3, they report, because they have been exposed to the solar wind longer and contain greater amounts of fine-grained aggregates that absorb helium-3. Also, solar wind-implanted particles are more abundant on the far side, because the Earth shields the Moon's near side from the solar wind for a portion of each solar orbit.

The scientists estimate that the greatest amounts of helium-3 will be found on the far side maria, or "seas," of the Moon, due to the higher solar wind, and in nearside areas with high concentrations of titanium dioxide [TiO2]. Their hypothesis is based on analysis of rock samples brought back by Apollo astronauts and mineralogic maps produced by the Clementine spacecraft. They expect to refine their maps with new elemental composition maps produced by the Lunar Prospector spacecraft.


Story Source:

The above story is based on materials provided by American Geophysical Union. Note: Materials may be edited for content and length.


Cite This Page:

American Geophysical Union. "Prospecting For Helium-3 On The Moon." ScienceDaily. ScienceDaily, 2 December 1998. <www.sciencedaily.com/releases/1998/12/981202080006.htm>.
American Geophysical Union. (1998, December 2). Prospecting For Helium-3 On The Moon. ScienceDaily. Retrieved March 3, 2015 from www.sciencedaily.com/releases/1998/12/981202080006.htm
American Geophysical Union. "Prospecting For Helium-3 On The Moon." ScienceDaily. www.sciencedaily.com/releases/1998/12/981202080006.htm (accessed March 3, 2015).

Share This


More From ScienceDaily



More Space & Time News

Tuesday, March 3, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: SpaceX Launches Rocket, Satellites on Board

Raw: SpaceX Launches Rocket, Satellites on Board

AP (Mar. 2, 2015) — SpaceX launched it&apos;s 16th Falcon 9 rocket from Cape Canaveral, Florida on Sunday night. The rocket was carrying two commercial communications satellites. (March 2) Video provided by AP
Powered by NewsLook.com
NASA EDGE: SMAP Launch

NASA EDGE: SMAP Launch

NASA (Mar. 2, 2015) — Join NASA EDGE as they cover the launch of the Soil Moisture Active Passive (SMAP) spacecraft live from Vandenberg Air Force Base.  Special guests include NASA Administrator Charlie Bolden, SMAP Project System Engineer Shawn Goodman and Lt Col Brande Walton and Joseph Sims from the Air Force.  No word on the Co-Host&apos;s whereabouts. Video provided by NASA
Powered by NewsLook.com
Astronauts Leave Space Station for Third Spacewalk

Astronauts Leave Space Station for Third Spacewalk

Reuters - News Video Online (Mar. 1, 2015) — NASA Commander Barry Wilmore and Flight Engineer Terry Virts perform their third spacewalk in eight days outside the International Space Station. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Spacesuit Water Leaks Not An Issue On Latest ISS Walk

Spacesuit Water Leaks Not An Issue On Latest ISS Walk

Newsy (Mar. 1, 2015) — Astronauts are ahead of schedule with hardware upgrades to the International Space Station, despite last week&apos;s spacesuit water leak scare. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins