Knowledge Explorations continues with astronomy

Published 8:58 am Tuesday, June 23, 2015

Combining 39 individual frames taken over 11 hours of exposure time
Combining 39 individual frames taken over 11 hours of exposure time

What Do You Know? Knowledge Explorations Led by Community Experts is back at the Bainbridge Public Library at 7 p.m. Wednesday, June 24.

The topic is “Astronomy: The Cosmic Distance Ladder with Steve.”

When astronomers say a galaxy is 2 billion light years, where do they get a tape measure that long? Steve Ruhl will examine the process of measuring astronomical distances from ancient wells in Egypt to the present at the free program.

For more information, call 206-842-4162 or visit www.krl.org.