What We're Following This Morning

Immigration and the U.S.: More than 59 million immigrants have arrived in the country since the passage of the landmark Immigration and Nationality Act of 1965. That’s a new finding from the Pew Research Center, which also says the share of the foreign-born population is 14 percent—just below the record set in 1890 during the last great wave of immigration. Update: More here.

Shell and Arctic drilling: The Anglo-Dutch oil giant says it is abandoning its operations in the Alaskan Arctic because of insufficient quantities of oil and gas at its Burger J exploration well. Shell said in a statement:

Shell will now cease further exploration activity in offshore Alaska for the foreseeable future. This decision reflects both the Burger J well result, the high costs associated with the project, and the challenging and unpredictable federal regulatory environment in offshore Alaska.

The company said the decision will cost it $4.1 billion. Update: More here.

NASA and a ‘major science finding’: The space agency is set to announce a “Mars mystery solved” this morning. USA Today points out the revelations is likely to be about water on the Red Planet, because three of the five scientists taking part in the news conference authored a paper that “asserts images captured by the Mars Reconnaissance Orbiter show the existence of flowing water on the surface of Mars.” Update: More here.