In a Nov. 29 “Books,” William Georgiades used the term psychosis when referring to psychopathy.

Because of a production error, the map legend in the Nov. 29 "Map of the Week" originally referred to a previous project.

In a Nov. 28 “Bad Astronomy,” Phil Plait misspelled Scott Weikert's last name.

In the Nov. 28 “Efficient Planet,” Jeremy Stahl stated that the American Recovery Act cost $700 billion and that more than 13 percent of it went to energy spending. It cost $831 billion, with more than 11 percent going to energy spending.

In a Nov. 28 “XX Factor,” J. Bryan Lowder misspelled San Francisco Supervisor Scott Wiener’s last name.

In the Nov. 28 “War Stories,” Fred Kaplan misspelled the last name of acting CIA Director Michael Morell.

In a Nov. 27 “Weigel” blog post, David Weigel misidentified Tip O’Neill as Tim.

In a Nov. 26 "Holidays,” Will Oremus misspelled the title of William Gibson’s novel Neuromancer.

In a Nov. 26 “Moneybox,” Matthew Yglesias misspelled the name of the Commodity Futures Trading Commission.

In a Nov. 23 "Future Tense," Alexandra Starr wrote that the venture capital firm Companía Argentina de Participaciones invested $800,000 in AwayFind. It invested $400,000.

In the Nov. 23 “Slate Quiz,” Ken Jennings identified BP as British Petroleum; the company rebranded itself as simply BP in 2001. The fourth question on the quiz—asking what Asian nation received its first visit by a sitting U.S. president—originally listed two correct answers (Cambodia and Myanmar) while accepting only one as correct. Another question originally referred to sales of all cellphones; the correct answer reflected the number of smartphone sales.

In a Nov. 21 "Bad Astronomy," Phil Plait stated that lunar is partially due to the tilt of the Moon's orbit with respect to the Earth's equator, but it is in fact partially due to the Moon's rotational axis being tipped with respect to its orbit. Plait thanks commenter Aldaron for pointing this out.

In a Sept. 28 “Brow Beat” slideshow, Katie Kilkenny misspelled the first name of actor Nicolas Cage.

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