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You wanted more quizzes, and we’ve delivered! Now you can test your wits every day of the week. Each weekday, your host, Ray Hamel, concocts a challenging set of unique questions on a specific topic.

After years of getting your emails and phone calls, we know that SciFri listeners are in the 99th percentile when it comes to nerdy knowledge. We’re putting your fact retention skills to the test with ...

Test your science knowledge with this weekly news quiz! We’d love to hear from you! E-mail us at games@sciam.com to share your experience.

From ancient philosophers pondering the stars to modern scientists scanning distant exoplanets, humanity has long asked one haunting question: Are we alone? When you purchase through links on our site ...

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1 / 6 | Name this hydrocarbon. It’s the reason “one bad apple spoils the bunch”: as an apple ripens, it releases more of this compound, which causes nearby fruit to ripen faster.