South Dakota Science and Technology Authority

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player



Welcome to Underground Science


Dr. Ray Davis inspects his neutrino detector under construction in the Homestake gold mine. (1965)

A laboratory 4,850 feet underground in the Homestake gold mine in Lead, South Dakota, helped start a revolution in physics.

Dr. Ray Davis installed a neutrino detector in Homestake in 1965. Neutrinos are subatomic particles produced by fusion in stars, and over the course of three decades, the Davis experiment led to the discovery that the neutrinos produced in our sun change type, or "flavor," on their way to earth. The change in flavor meant neutrinos had to have at least a wisp of mass -- a wisp that required a significant change in the Standard Model of how the universe works.

Read More

The vision for underground research at Homestake.

South Dakota Gov. Mike Rounds joins scientists who are already working at the Sanford Underground Laboratory.
Click here to watch on YouTube

The DUSEL Plan

An NSF DUSEL at Homestake The National Science Foundation’s DUSEL at Homestake, would have campuses from the surface down to 8,000 feet. Click Here...
 
Hundreds attend Neutrino Day 2010

 

July 10 event draws 600-plus

Lead, S.D. -- Neutrino Day drew about 550 people  to the Yates Dry and the Yates Shaft hoist room on a Saturday morning.


Add 65 people for the  standing-room-only crowd at Friday’s night’s Science Cafe at the Stampmill and about 30 for an art-and-science lecture downtown on Sunday, and we reached well over 600 people for the third straight year. Lecturers Jaret Heise and John Scheetz of the Sanford Lab, Kara Keeter of BHSU and Tom Durkin of SDSMT each spoke to near-capacity crowds in the old ERT room.

Read more...
 
"Hunting WIMPs" draws 100 in Pierre PDF Print E-mail
Friday, 22 January 2010 16:12

Last month, in fact, dark matter made headlines around the world when researchers announced they had discovered a possible hint of the substance in an experiment deep in a former iron mine in northern Minnesota, but those results were inconclusive. Dr. Gaitskell and Dr. Shutt previously worked on that Minnesota experiment. Now they've assembled a team of scientists and engineers from nine universities and two national laboratories to build a different kind experiment.* It's called the Large Underground Xenon detector, or LUX, and it will be the most sensitive dark-matter detector of its kind ever built.

Dr. Shutt said that if WIMPs exist, we should be able to detect them on earth -- if the detector is sensitive enough. "Some 30 percent of the universe is in the form of a dark matter fundamentally different from ordinary matter," Dr. Shutt says. "Weakly Interacting Massive Particles, or WIMPs, created in the big bang, are one of the most promising ideas for what this dark matter could be."

Next Tuesday's lecture -- "Hunting WIMPs in the Black Hills" -- will be for general audiences, and especially for students. The Sanford Lab's "Deep Science for Everyone" lecture series already has introduced more than 3,000 South Dakotans to some of the world's top scientists, and Dr. Gaitskell already is doing outreach on his own. During a recent day of skiing at Terry Peak, near Lead, he found himself giving a chairlift talk about dark matter to some young students. "These were snowboarders," Dr. Gaitskell said. "Fourteen-year-olds. And when they said 'Cool!' I really think they meant it. You could see something switching on inside them."

The LUX dark-matter detector will be the first major physics experiment at the Sanford Lab. The South Dakota Science and Technology Authority is re-opening Homestake to a depth of 4,850 feet, but the former gold mine has shafts and tunnels as deep as 8,000 feet underground. The National Science Foundation is considering an even bigger proposal to make Sanford Lab at Homestake a national lab -- the Deep Underground Science and Engineering Laboratory, or DUSEL (pronounced "DOO-suhl."). A Homestake DUSEL would be the largest, deepest underground laboratory in the world, with experiments in physics, geology and biology.

LUX collaborating institutions:

  • Brown University
  • Case Western Reserve University
  • Harvard University
  • Lawrence Livermore National Laboratory
  • University of Maryland
  • Texas A&M
  • University of California at Davis
  • University of Rochester
  • University of South Dakota
  • Yale University

Where and When:

Tuesday, Jan. 26, 7 P.M.
Ramkota Amphitheater 2
920 W. Sioux Ave.
Pierre S.D.
FREE AND OPEN TO THE PUBLIC, STUDENTS ENCOURAGED TO ATTEND

For more information:

http://www.SanfordLab.org

http://luxdarkmatter.org/collaboration.html

Download a flier for your school, classroom or business.

Live webcast: http://www.sdpb.org/livewebcasts