A previous version of this article misstated at one point when the Viking lander experiments took place.

An earlier version of this story misstated the amount of cuts in the Republican plan.

An earlier version of this article misstated Brandon Sanderson's given name as Brad.

An earlier version of the headline with this article misstated the age of the cello.

A previous version of this article misstated the name of Rob Gronkowski.

An earlier version of this story misstated the name of Norway's governing party.

An earlier version of this obituary misstated the year in which NeXT shifted its focus from the education to the business market as 1986.

An earlier version of this article misstated the location of Rainy Day Books.

An earlier version of this timeline misstated Mr. Jobs's birthplace.

An earlier version of this article misstated James M. Ward's middle initial.