Loren W. Acton Montana State University January 20, 2011 Interact Rotary Club Bozeman High School.
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Transcript of Loren W. Acton Montana State University January 20, 2011 Interact Rotary Club Bozeman High School.
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Loren W. ActonMontana State University
January 20, 2011
Interact Rotary ClubBozeman High School
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We humans are motivated to dream, to explore, to discover, to
learn.
"Dream no small dreams for they have no power to move the hearts of men."
-- Johann Wolfgang von Goethe
“It is difficult to say what is impossible, for the dream of yesterday is the hope of today
and the reality of tomorrow.”
-- Robert H. Goddard
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Dr. Robert H. Goddard1882-1945
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The beginning of space exploration
First view of Earth from a camera on V-2 #13, launched October 24, 1946. White Sands Missile Range/Applied Physics Laboratory
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J. F. Kennedy -- Rice UniversitySeptember 12, 1962
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Buzz Aldrin setting out scientific instruments on Apollo 11.
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Al Bean, tourist pose, Apollo 12
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Did Galileoget it right?
-Dave Scott, experimenter
Apollo 15
Painting by Al Bean, Apollo 12
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Apollo 16 Rover Grand Prix
Apollo 17 Oops! Apollo 17 “Dad gummit!”
Apollo 17 Rock hounds
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*July 29, 1985. Second launch attempt.
*
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Off to work on the ISS
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Soyuz, another route to the ISS
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“Butch” Wilmore gives a tour of the ISS
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Shuttle “Fly around”
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Wonders of Robotic Space Exploration
“Humans in space” have generated a grand public interest and excitement. Yet, it is robotic space explorations that have paid the biggest dividends of remarkable new knowledge and useful applications. E.g.,
• Solar physics and space weather.• Planetary exploration.• Astronomy and astrophysics.• Earth remote sensing, climate and weather.• Global Positioning System.• Communication and broadcasting.• Military intelligence.
Today we’ll touch on only a few exciting experiments.
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The GOES-13 satellite captured a "full-disk image" of North and South America on December 30 at 09:45 EST, as the world awaited the new year.
Credit: NOAA/NASA GOES Project
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A Robot's Shadow on Asteroid ItokawaHayabusa, a mission of ISAS/JAXA, Japan
Image of Itokawa taken by Hayabusa.
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Hayabusa capsule in Woomera, Australia, desert.
Sample return from Asteroid Itokawa. December 2010.
ISAS/JAXA HayabusaMission.
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First sample from Itokawa
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Snowstorm Engulfs Comet Hartley 2
Observed by NASA Deep Impact (extended) mission on November 4, 2010.
Comet Hartley 2, photographed on Oct. 13, 2010 by Nick Howes using the 2-meter Faulkes North Telescope in Hawaii.
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Source of the Hartley 2 snow storm.2 km
CO2 jet
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Solar Dynamics ObservatoryBlue: 0.8 MK, Green: 1.3 MK, Red: 2.0 MK
January 2011
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Big (M5.4) x-ray flare.6 Nov. 2010 15:36
NASA Solar Dynamics Observatory
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A coronal mass ejection (CME) observed by STEREO on Dec. 12, 2008
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NASA Stereo observations of the coronal mass ejection of 1 Aug 2010.
Bottom: Sun and its immediate surroundings (north at the top).
Top: Views past the Earth and beyond.
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Pub
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AA
AS
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Cartoon of a Coronal Mass Ejection and its Impact on the Earth’s Magnetosphere
http://www-istp.gsfc.nasa.gov/istp/outreach/cmeposter/movies
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Magnetic storm – 10 January 1997
Space Plasma Physics Group & Advanced Visualization Lab., Univ. of Marylandhttp://www.spp.astro.umd.edu/mhd/jan_cloud.htm
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Discovery of Cosmic Microwave Background, 1965Nobel Prize, 1978.
Images taken from: http://map.gsfc.nasa.gov/universe/bb_tests_cmb.html
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Variation from placeto place on the skyis as much as about± 0.004ºK.
Image taken from: http://map.gsfc.nasa.gov/universe/bb_tests_cmb.html
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Cosmic Background Explorer - 1992
Wilkinson Microwave Anisotropy Probe - 2001
CMB Temperaturerange = .0005K!
Credit: The InternetEncyclopedia of Science
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Diagram taken from: http://map.gsfc.nasa.gov/universe/bb_tests_cmb.html
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The CMB bottom line.
• Velocity of our solar system through the universe equals 368 km/sec.
• Age of the universe is 13.75 billion years (since the big bang).
• The universe is made up of: 4% ordinary matter23% dark matter73% dark energy
Oh, the adventure and wonder of space exploration!
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