High design in a factory-made home? Michelle Kaufmann believes she holds the key
Development threatens to block the migration of pronghorn antelopes. Without new protections, conservationists say, the animals are running out of time
Why a leading expert on the history of timekeeping set out to create a sundial unlike anything the world has ever seen
A unique sundial marks places as well as hours
What's the world's oldest communal ocean reef doing in the Green Mountain State?
Tree frogs, conservation maps and the northern swordtail fish
A new type of body art ink promises freedom from forever
Smithsonian diamond expert Jeffrey Post discusses conflict diamonds, colored diamonds and synthetic gems grown in the lab
One professor's mission to revise the calendar
In the final installment of this three-part series, diamond expert Jeffrey Post discusses the histories behind the Smithsonian collection
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
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