Curiosity has bored a hole in a second rock and will transfer a pinch of powder to its on-board laboratories later this week for analysis.
Irish government denies responsibility for Apple's low tax payments.
Amazon.com Inc gets security clearance by the US government making it easier for federal agencies to use its cloud services.
"This is something that he built - it's his baby - and it's emotional." Karp's mother, Barbara Ackerman.
Tumblr will give Yahoo! a much-needed social media platform to reach a younger generation of users.