Welcome to Slate’s weekly news quiz. It’s Friday, which means it’s time to test your knowledge on the week’s news events—everything from science, sports, politics, and culture both high and low.

The questions are multiple-choice, and time is of the essence: You have 50 seconds to answer, and as the seconds tick away, the question’s point value drops from 50 all the way down to zero, so you’ll want to click on your answer as fast as you possibly can. There’s no penalty for an incorrect answer, so feel free to take a guess.

At the end of the quiz, you’ll be able to compare your score with that of the average contestant, as well as with the score of a Slatester who has agreed to take the quiz on the record. This week’s contestant is Bad Astronomer Phil Plait.

Can you ace the quiz and beat Plait? Good luck!