The Sound of the Big Bang Might Be Telling Us Our Galaxy Lives in a Billion-Light-Year-Wide Cosmic Hole Controversial model posits Earth and our galaxy may reside in a supervoid.

Check out our RKT stock chart to see a history of performance, current stock value, and a timeline of financial events & indicators for a full analysis today.

Well, it's July 12, which means (a) the Steam Summer Sale is over and (b) it's really hot outside in the northeastern U.S.

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At Yahoo Finance, you get free stock quotes, up-to-date news, portfolio management resources, international market data, social interaction and mortgage rates that help you manage your financial life.

At Yahoo Finance, you get free stock quotes, up-to-date news, portfolio management resources, international market data, social interaction and mortgage rates that help you manage your financial life.