Friday, 2 a.m. and 10 a.m. Science
Chase tornadoes with the Oklahoma-based VORTEX Project and visit the NOAA's Space Environment Center to examine the solar cycles and meteorological currents that spawn the Gulf Stream, El Nino and the crucial North Atlantic Oscillation.
Discovery Health Classroom
Saturday, 5 a.m. Discovery Health
"Prescription for Trouble." Experts put forth three explanations for the explosion in abuse of legal drugs: easier access, a false sense that these drugs are safe, and a "medicine mind-set" in our culture. But abuse of these drugs at any age is addictive and dangerous.
Saturday, 5:30 p.m. WMPT
"Stompin' the Swamp." An ancient swamp in Calvert County brings out the curious and hearty as young and old alike stomp through it to find the granddaddy cypress of them all.
"Buy a Landslide." Calvert Cliffs is the site of a classic environmental conflict. What's more important -- the federally endangered tiger beetle living in the cliffs, the people whose homes are in danger of falling into the Chesapeake Bay as the cliffs erode or the rare fossils regularly found in the cliffs? Who goes and who stays?
"A Wild Dinner." A mountain man of Garrett County origin leads the Outdoors Maryland viewer through the woods and meadows as he collects ingredients for a wild dinner.
Thursday, 8:33 a.m., WYPR (88.1 public radio).
"400th Anniversary of Johannes Kepler's Supernova." Hosts are Jim O'Leary, senior director of technology, IMAX and Davis Planetarium at the Maryland Science Center, and Carol Christian, deputy head of the Community Missions Office of the Space Telescope Science Institute.
Tuesday, 7:30 p.m. (Repeats Thursday at 5:30 a.m. and Dec. 25 at 5:30 p.m.) WMPT
"Beauty's Power." Winding its way from Delaware through the Lower Eastern Shore, the Nanticoke River's uncommon charms motivate private citizens and corporations alike to keep the watershed clean for themselves and the plants and animals that live directly off the Nanticoke. An uncommon story of extraordinary stewardship by ordinary people.
"Smoke the Bird." There's a growing collection of Delmarva outdoor enthusiasts that meets at ranges each week to fire at flying clay targets. Shooting at "sporting clays" is a holdover from Great Britain's famous trap shooting traditions, and little of that spirit has changed in its American incarnation.
"A New Day for the Bay." The Chesapeake Bay Foundation looks for fresh ideas and enthusiasm by taking small groups of young people out onto the bay and into the marsh to give them a first-hand glimpse of the Chesapeake's reach into local lives.
Read Sun science writer Frank Roylance's weather and astronomy blog, updated daily at marylandweather.com.