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NASA scientist John Grunsfeld gives a preview of the Mars Curiosity mission, from the landing’s ‘seven minutes of terror’ to the plans for the exploration ahead.
From the psychology of trash talk to frustrated magnets, a new book asks if science can explain life's annoyances.
From dramatic new stem cell techniques to new ideas about cosmic rays, 2007 had plenty of scientific surprises. Join Ira and guests for a look back at the top science stories of the year.
Researchers report that they have been able to extract embryonic stem cells from cloned monkey embryos.
Much-maligned moths are more than the butterfly’s drab cousin.
Hawk moths feed like hummingbirds. Ty Hedrick wants to know how they hold steady...
Can woolly bear caterpillars predict winter weather?
Several newly-discovered species of caterpillar in Hawaii function equally well ...
A virus known as baculovirus sends caterpillar climbing for the treetops.
\tLegend holds that the length of a woolly bear caterpillar’s color bands can be used to forecast how severe the winter weather will be. The myth dates back to colonial American folklore but was popularized by a 1948 study. SciFri finds out if there’s any truth to the lore, and what the caterpillar’s fuzzy bristles are really used for.