With innovative tactics, U.S. forces make headway in the "war on terror"
Momentous or Merely Memorable
Some promising endeavors on Pacific islands
A timeline of the country's conflicts
Paper dolls, Josephine Baker and the Seven Years' War
Remembering martial law 25 years later
The Institution's Regents include the Vice President, the Chief Justice and other national leaders
Parasitic plants, zebra tarantulas and wobbles in Earth's orbit
Bugs in trees and kids in labs get their due in a new book by "Canopy Meg"
When elephants began dying, Peter Beard suspected that poachers were not entirely to blame
The first evidence that elephants can recognize themselves
An ancient Greek calendar was ahead of its time
The first mission to collect space matter from beyond the moon offers insights into the solar system's creation
In the first installment of a multi-part series, Smithsonian diamond expert Jeffrey Post explains how the rare crystals form
A plummeting cougar population alters the ecosystem at Zion National Park
Creator of savvy Native American sleuths, author Tony Hillerman cherished his Southwestern high desert home
A trip to Mount Erebus yields a rare, close-up look at one of the world's weirdest geological marvels
Eliza Griswold discusses the U.S. approach on Jolo and applying these lessons to Iraq and Afghanistan
A new strategy to curb the spread of gypsy moths
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