The space race began 50 years ago this week when the U.S.S.R. launched Sputnik I. Today the 50th Anniversary is Celebrated in Google Style by displaying this logo.
October 4, 2007 is the International Sputnik Day, check out the events here.
Here are some Articles in the news for your reading:
Information Week: Sputnik’s 50th Anniversary Recalls Dawn Of Space Age
USA Today: Sputnik’s anniversary raises questions about future of space exploration