Tag: Nancy Remage Evans

Nation & World
There’s more to the North Star than meets the eye

We tend to think of the North Star, Polaris, as a steady, solitary point of light that guided sailors in ages past. But there is more to the North Star…

January 9, 2006

2 minutes
Nation & World
Harvard continues legacy of Cepheid discoveries

Cepheids are important to astronomers for their key role as extragalactic distance indicators. Cepheids are variable stars that regularly brighten and dim as they pulsate rhythmically. Their pulsation period is…

May 28, 2003

1 minute