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Aerospace49 articles archived since 1845

How Your GPS Uses Einstein's Relativity

Time flows slightly faster on the Global Positioning System satellites than it does on the ground, so Einstein's relativity theory comes into play when figuring out where on Earth you are.

January 6, 2017 — Lydia Chain

Best Science Books of 2016

Barbara Kiser, books and arts editor at Nature, talks about her favorite science books of 2016, especially three works about the little-known history of women mathematicians. 

December 31, 2016 — Barbara Kiser and Steve Mirsky

How the Military Surveils Santa

In a Christmas tradition, the defense organization NORAD helps us keep track of Santa as he zips around the world delivering toys.

December 22, 2016 — Lydia Chain

The Bowling Ball That Invaded Earth

Former Scientific American editor Mark Alpert talks about his latest science fiction thriller, The Orion Plan, featuring the method whereby aliens most likely really would colonize our planet.
 

May 5, 2016 — Mark Alpert and Steve Mirsky

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