Presentation History

A History of Imaging the Crab Nebula
Friday, September 5, 2025, Northwest Suburban Astronomers

Could We Understand an Alien Message?
Thursday, September 4, 2025, Minnesota Astronomical Society

Could We Understand an Alien Message?
Saturday, April 26, 2025 . Northwest Suburban Astronomers, Astronomy Day, Harper College

Could We Understand an Alien Message?
Friday, March 14, 2025 . Skokie Valley Astronomers . Zoom only

Astro-Tourism: A Meridian Line in a Church in Rome
Wednesday, December 11, 2024 . Encore Village

Stargazing for All: Learn the Zodiac (Ecliptic Constellations)!
Thursday, October 24, 2024 . Chicago Botanic Gardens

Artificial Intelligence in Astronomy
Saturday, October 12, 2024 . Popular Astronomy Club, Moline, IL

Optical Illusions and the Moon Illusion
Tuesday, September 17, 2024 . Des Plaines Public Library

Amateur Astronomers Attend an Astronomy Conference: A Report on AAS244
Friday, September 13, 2024 . Skokie Valley Astronomers . Glenview Public Library

Optical Illusions and the Moon Illusion
Wednesday, July 10, 2024 . Lincolnwood Public Library

Artificial Intelligence in Astronomy
Friday, June 21, 2024 . Northwest Suburban Astronomers, Harper College

Stargazing for All: Learn the Zodiac (Ecliptic Constellations)!
Thursday, June 20, 2024 . Chicago Botanic Garden

Astro-Tourism: A Meridian Line in a Church in Rome
Saturday, May 18, 2024 . Northwest Suburban Astronomers, Astronomy Day, Harper College

The Skies of 2024
Thursday, March 28, 2024 . Encore Village, Schaumburg

The Skies of 2024
Thursday, March 14, 2024 . Lincolnwood Public Library

A History of Imaging the Crab Nebula
Thursday, March 7, 2024 . Skokie Valley Astronomers . Glenview Public Library

Artificial Intelligence in Astronomy
Friday, February 16, 2024 . Lake County Astronomical Society

The Skies of 2024
Friday, January 19, 2024 . Des Plaines Public Library

The Skies of 2024
Thursday, January 11, 2024 . Chicago Botanic Garden

Artificial Intelligence in Astronomy
Thursday, January 4, 2024 . Northern Cross Science Foundation . Jackson Area Community Center in Jackson WI

The Skies of 2024
Friday, December 8, 2023 . Skokie Valley Astronomers . Ryerson Welcome Center

Artificial Intelligence in Astronomy
Friday, July 14, 2023 . Skokie Valley Astronomers . Glenview Public Library

Underground Observatories — “Seeing” the Universe Through Solid Rock
Friday, June 2, 2023 . Northwest Suburban Astronomers . Barrington Area Library

The Variety of Cosmic Maps
Saturday, April 29, 2023 . Astronomy Day, Northwest Suburban Astronomers . Harper College

The Skies of 2023
Friday, January 13, 2023 . Skokie Valley Astronomers . Glenview Public Library

Imaging Exoplanets by Looking Past the Sun
Friday, December 9, 2022 . Skokie Valley Astronomers . Glenview Public Library

World Migratory Bird Day — The Importance of Dark Skies
Wednesday, May 18, 2022 . Grayslake Village Hall

The Variety of Cosmic Maps
Friday, July 8, 2022 . Skokie Valley Astronomers . Cernan Earth and Space Center

Dancing Planets, Sky Pictures, and Streaks of Light: Coming Soon To a Sky Near You!
Friday, December 10, 2021 . Skokie Valley Astronomers . Online via Zoom

The Arecibo Observatory: A Retrospective
Friday, April 9, 2021 . Skokie Valley Astronomers . Online via Zoom

DIY: Make Your Own Spacecraft Models ... And Cookies!
Friday, November 13, 2020 . Skokie Valley Astronomers . Online via Zoom

Underground Observatories — “Seeing” the Universe Through Solid Rock
Friday, September 11, 2020 . Skokie Valley Astronomers . Online via Zoom

Radio Astronomy at the MIT Haystack Observatory
Friday, April 10, 2020 . Skokie Valley Astronomers . Online via Zoom

NIAC: NASA's Exciting Innovation Funding Program
Friday, November 8, 2019 . Skokie Valley Astronomers . Ryerson Welcome Center

'Oumuamua: Natural Object or Alien Probe?
Saturday, October 26, 2019 . Cook Park Library, Libertyville

The Machines of Spaceflight: Now versus the Future
Thursday, August 29, 2019 . Geneva Lakes Astrophysics and STEAM . Riviera Ballroom, Lake Geneva, WI

The Machines of Spaceflight: Apollo versus Now
Thursday, July 25, 2019 . Geneva Lakes Astrophysics and STEAM . Riviera Ballroom, Lake Geneva, WI

'Oumuamua: Natural Object or Alien Probe?
Saturday, May 11, 2019 . Astronomy Day, Northwest Suburban Astronomers . Harper College

'Oumuamua: Natural Object or Alien Probe?
Friday, February 8, 2019 . Skokie Valley Astronomers . Ryerson Welcome Center

Are We Prepared For the Next Carrington Event?
Friday, September 14, 2018 . Skokie Valley Astronomers . Ryerson Welcome Center

Curious Exoplanet Scientists Want To Know: Is There Life on Earth?
Saturday, April 21, 2018 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Curious Exoplanet Scientists Want To Know: Is There Life on Earth?
Friday, November 10, 2017 . Skokie Valley Astronomers . Ryerson Welcome Center

The Antikythera Mechanism
Saturday, April 29, 2017 . Astronomy Day, Northwest Suburban Astronomers . Harper College

How We're Preparing for the 2017 Eclipse
Friday, December 9, 2016 . Skokie Valley Astronomers . Ryerson Welcome Center

Einstein Destroys Vulcan!
Friday, July 8, 2016 . Skokie Valley Astronomers . Ryerson Welcome Center

Einstein Destroys Vulcan!
Saturday, May 14, 2016 . Astronomy Day, Northwest Suburban Astronomers . Harper College

New Research on the Solar Cycle
Friday, November 13, 2015 . Skokie Valley Astronomers . Ryerson Welcome Center

The Machines of ALMA
Saturday, April 25, 2015 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Citizen Science: Finding Pulsars via BOINC
Friday, March 13, 2015 . Skokie Valley Astronomers . Ryerson Welcome Center

Optical Illusions and the Moon Illusion
Saturday, May 10, 2014 . Astronomy Day, Northwest Suburban Astronomers . Harper College

The Machines of ALMA
Friday, March 14, 2014 . Skokie Valley Astronomers . Ryerson Welcome Center

Optical Illusions and the Moon Illusion
Friday, September 13, 2013 . Skokie Valley Astronomers . Ryerson Welcome Center

Optical Illusions and the Moon Illusion
Saturday, April 20, 2013 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Radioactive Decay and Solar Flares
Friday, February 8, 2013 . Skokie Valley Astronomers . Ryerson Welcome Center

Don't Miss the last Venus Transit of Your Lifetime!
Friday, May 11, 2012 . Skokie Valley Astronomers . Ryerson Welcome Center

How To Find the Planets in the Night Sky
Saturday, April 28, 2012 . Astronomy Day, Northwest Suburban Astronomers . Harper College

The Antikythera Mechanism
Friday, September 9, 2011 . Skokie Valley Astronomers . Ryerson Welcome Center

How To Find the Planets in the Night Sky
Saturday, May 7, 2011 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Artificial Gravity, in the lab, on Earth
Friday, September 10, 2010 . Skokie Valley Astronomers . Ryerson Welcome Center

How To Find the Planets in the Night Sky
Saturday, April 24, 2010 . Astronomy Day, Northwest Suburban Astronomers . Harper College

The Pioneer Anomaly
Friday, April 9, 2010 . Skokie Valley Astronomers . Ryerson Welcome Center

Relativity and the 1919 Solar Eclipse
Friday, August 14, 2009 . Skokie Valley Astronomers . Ryerson Welcome Center

How To Find the Planets in the Night Sky
Saturday, May 2, 2009 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Spinoffs From the Space Program
Friday, October 10, 2008 . Skokie Valley Astronomers . Ryerson Welcome Center

Update on Apophis
Friday, August 8, 2008 . Skokie Valley Astronomers . Ryerson Welcome Center

How To Find the Planets in the Night Sky
Saturday, May 10, 2008 . Astronomy Day, Northwest Suburban Astronomers . Harper College

My Top Ten 2006 “Astronomy Picture of the Day”
Friday, June 8, 2007 . Skokie Valley Astronomers . Ryerson Welcome Center

How To Find the Planets in the Night Sky
Saturday, April 21, 2007 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Tag an Asteroid (99942 Apophis)
Friday, April 13, 2007 . Skokie Valley Astronomers . Ryerson Welcome Center

How To Find the Planets in the Night Sky
Saturday, May 6, 2006 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Astro-Tourism: A Meridian Line in a Church in Rome (with Frances Dellutri)
Friday, August 12, 2005 . Skokie Valley Astronomers . Ryerson Brushwood

Using Celestial Coordinates
Friday, Septembr 10, 2004 . Skokie Valley Astronomers . Ryerson Brushwood

Venus Crosses the Sun!
Friday, April 9, 2004 . Skokie Valley Astronomers . Ryerson Brushwood

A Hypernova in Leo
Friday, August 8, 2003 . Skokie Valley Astronomers . Ryerson Brushwood

How To Find the Planets in the Night Sky
Saturday, May 6, 2003 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Updating Kepler's Dream: Observing the Earth FROM the Moon
Friday, August 9, 2002 . Skokie Valley Astronomers . Ryerson Brushwood

Stargazing for Everyone: Learn the Zodiac (Ecliptic Constellations)!
Friday, April 12, 2002 . Skokie Valley Astronomers . Ryerson Brushwood

The Music of the Spheres (with Frances Dellutri)
Friday, May 11, 2001 . Skokie Valley Astronomers . Ryerson Brushwood

How To Find the Planets in the Night Sky
Saturday, May 5, 2001 . Astronomy Day, Northwest Suburban Astronomers . Harper College

Astronomy, 1900 & 2000
Friday, December 8, 2000 . Skokie Valley Astronomers . Ryerson Brushwood

Astronomy FROM the Moon
Friday, May 12, 2000 . Skokie Valley Astronomers . Ryerson Brushwood

Astro-Catastrophes and Ancient Civilizations
Friday, August 13, 1999 . Skokie Valley Astronomers . Ryerson Brushwood

Bad Science in a Good Movie: “Deep Impact”
Friday, March 12, 1999 . Skokie Valley Astronomers . Ryerson Brushwood

Optical Illusions and the Moon Illusion
Friday, August 8, 1997 . Skokie Valley Astronomers . Ryerson Brushwood

Black Holes
Friday, May 10, 1996 . Skokie Valley Astronomers . Ryerson Brushwood

Black Holes
Friday, May 12, 1995 . Skokie Valley Astronomers . Ryerson Brushwood

Color in the Cosmos
Friday, May 13, 1994 . Skokie Valley Astronomers . Ryerson Brushwood

Astronomy Information Online
Friday, March 11, 1994 . Skokie Valley Astronomers . Ryerson Brushwood

Computers in Astronomy Made Simple
Friday, April 9, 1993 . Skokie Valley Astronomers . Ryerson Brushwood

Observing the Face of the Moon
Friday, December 11, 1992 . Skokie Valley Astronomers . Ryerson Brushwood

The Aurora
Friday, September 11, 1992 . Skokie Valley Astronomers . Ryerson Brushwood

Mithraism, Astrology, and Precession
Friday, August 9, 1991 . Skokie Valley Astronomers . Ryerson Brushwood

Payback from the Space Program
Friday, February 8, 1991 . Skokie Valley Astronomers . Ryerson Brushwood

Pioneering the High Frontier
Friday, February 9, 1990 . Skokie Valley Astronomers . Ryerson Brushwood

Starships of Tomorrow
Friday, June 9, 1989 . Skokie Valley Astronomers . Ryerson Brushwood

Commercial Space Ventures
Friday, November 11, 1988 . Skokie Valley Astronomers . Ryerson Brushwood