2012

"Planets (Oops, Planetoids) X, Y, Z and W: What the Kuiper Belt Teaches About the Dawn of the Solar System," Analog Science Fiction and Fact, 82(4), April 2012, pp. 22-29.

"Fluffy Impact: What LCROSS Found When It Hit the Moon,"Analog Science Fiction and Fact, 82(7&8), July/Aug 2012, pp. 44-49.

"The Day the Sun Exploded," Analog Science Fiction and Fact, 82(11), November 2012, pp. 21-27.

"Guest Alternate View: Traditional Mousetraps," 82(11), November 2012, pp. 54-57.

2011

"Shake, Rattle, and Roll: Is Missouri Really America's Most Dangerous Earthquake Zone?" Analog Science Fiction and Fact, 81(1&2), Jan/Feb 2011, pp. 17-23.

"Poisons, Temperature, and Climate Change: Will Global Warming Make Everything Else Worse?" Analog Science Fiction and Fact, 81(12), December 2011.

2010

"What's in a Kiss? The Wild, Wonderful World of Philematology," Analog Science Fiction and Fact, 80(4), April 2010, pp. 37-42.

"Artificial Volcanoes: Can We Cool the Earth By Imitating Mt. Pinatubo?" Analog Science Fiction and Fact, 80 (7-8), July/August 2010, pp. 40-45.

"Visit to the Forgotten Planet: What Scientists are Learning as MESSENGER Prepares to Orbit Mercury," Analog Science Fiction and Fact, 80(10), October 2010, pp. xx-yy.

"Phantom Science," Analog Science Fiction and Fact, 80(11), November 2010, pp. 38-43.

2009

"Geology, Geohistory, and "Psychohistory": The (Continuing) Debate Between Uniformitarians and Catastrophists," Analog Science Fact and Fiction, 79(5), May 2009, pp. 23-yy.

"From Atlantis to Canoe-Eating Trees: Geomythology Comes of Age," Analog Science Fiction and Fact, 79(9), September 2009, pp. 32-yy.

"Plate Tectonics, Goldilocks, and the Late Heavy Bombardment: Why Earth isn't Mars or Venus," Analog Science Fiction and Fact, 79(12), December 2009, pp. 21-27.

2008

"Nuclear Autumn: The Consequences of a 'Small' Nuclear War," Analog Science Fiction and Fact, 78(4), April 2008, pp. 30-35.

"Peroxide Snows, Ejected Moons, and Deserts that Create Themselves," Analog Science Fiction and Fact, 78(6), June 2008, pp. 38-45.

"Here Be There Dragons: The Ivory-Billed Woodpecker and Other Mysteries of an Explored Planet," Analog Science Fiction and Fact, 78(10), October 2008, pp. 26-32.

"Green Nanotechnology," Analog Science Fiction and Fact, 78(12), December 2008, pp. 22-28.

2007

"After Gas: Are We Ready for the End of Oil?" Analog Science Fiction and Fact 77(1&2), January/February 2007, pp. 124-133.

"The Ice Age that Wasn't: How our ancestors may have held the ice at bay," Analog Science Fiction and Fact, 77(4), April 2007, pp. 44-51.

"Cryovolcanoes, Swiss Cheese, and the Walnut Moon," Analog Science Fiction and Fact: What Cassini's first year taught us of the Solar System," 77(6), June 2007, pp. 40-52.

"The Search for the World's First Equestrians," Analog Science Fiction and Fact, 77 (11), November 2007, pp. 48-54.

2006

"From Fimbulwinter to Dante's Hell: The Strange Saga of Snowball Earth," Analog Science Fiction and Fact, 76(1 & 2), Jan/Feb 2006, pp. 86-96.

"Messenger's from the Earth's Core? The Great Plume Debate Heats Up," Analog Science Fiction and Fact, 76(7&8), July/August, 2006), pp. 36-44.

"The Great Sumatran Earthquakes of 2004-5," Analog Science Fiction and Fact, 76(10), October 2006, pp. 46-55.

2005

“The Prehistory of Global Climate Change,” Analog Science Fiction and Fact, 75(3), March 2005, pp. 30-41.

“Gene Doping and Other Olympic Scandals of the (Not-So Distant) Future,” Analog Science Fiction and Fact, 75(6), June 2005, pp. 34-44.

“The Wired Ocean: Doing Oceanography Without Getting All Wet,” Analog Science Fiction & Fact, 75(10), October 2005, pp. 26-35.

2004

“Forensic Seismology,” The Big Science of Minor Shakeups,” Analog Science Fiction and Fact, 74(4), April 2004, pp. 24-33; Polish Translationin Nowa Fantastyka, October 2004.

“The Transience of Memory: We Really Can Remember It for You Wholesale,” Analog Science Fiction and Fact, 74(6), June 2004, pp. 38-45.

“Fat Mice, Eating Machines, and Biochemical Treason: Will We Ever Create a Dial-a-Weight Pill?” Analog Science Fiction & Fact, November 2004, pp. 34-43.

2003

“Paleolakes, Jøkulhlaups, and Mobergs: What Iceland Reveals about “Wet Mars,” Analog Science Fiction and Fact, 73(2), February 2003, pp. 52-63.

“The Search for Extraterrestrial Oceans,” Analog Science Fiction and Fact, 73(5), May 2003, pp. 36-45.

“From Salt Foam to Artificial Oysters: Innovative Solutions to Global Warming,” Analog Science Fiction and Fact," 73(7&8), July/August 2003, pp. 43-51.

“Volcanoes in Human History: The Far-Reaching Effects of Major Eruptions,” (book review) Analog Science Fiction and Fact," 73(7&8), July/August 2003, p. 209.

“Moving Beyond ‘Life as We Know It’: Astrobiology Takes On ‘Earthist-centricity,” Analog Science Fiction and Fact, 73(11), November 2003, pp. 30-41.

2002

"Living at Extremes: Antarctic Lakes Yield Lessons for Mars, Europa, and Beyond," Analog Science Fact and Fiction, 72(2), February 2002, pp. 48-60.

"Subsisting on Oxygen Lite: Altitude Research, Himalayan Mountaineering, and Their Applications to Alien Worlds," Analog Science Fiction and Fact, 72 (6), June 2002, pp. 48-61.

"Sedimentology Gone Wild: The Onion-Layer Theory of Time Travel," Analog Science Fiction and Fact, 72 (9), September 2002, pp. 52-63.

2001

"The View from Space: Satellites Predict a Lot More than Weather," Analog Science Fiction and Fact, 71(2), February 2001, pp. 48-59.

"Up in Smoke: How Mt. St. Helens Blasted Conventional Scientific Wisdom," Analog Science Fact & Fiction, 71(2), April 2001, pp. ___-__.

1999

"Tricorders, Yactograms and the Future of Analytical Chemistry: When 'Nano-' Isn't Small Enough," Analog Science Fiction and Fact, 69 (4), April 1999, pp. 41-51.