SpaceX: Space Station crew likes what it sees in new transport vehicle

What's an American Indian? Warren case stirs query

4:09 pm ET - Native Americans have a high rate of intermarriage with other groups. Many are not identifiable by appearance, which has made it possible for almost anyone to assume a Native persona. That seems to have been the case with US Senate candidate Elizabeth Warren.

Subtropical Storm Beryl: Dixie beachgoers batten down for big Memorial Day soak

1:12 pm ET - It’s not the way Memorial Day event organizers from South Carolina to Florida wanted the unofficial summer kickoff to go, with Subtropical Storm Beryl bearing down, threatening beach barbecues, but sparing the big NASCAR race.

Syria 'massacre' raises pressure for international response

2:15 pm ET - Syrian artillery attack that apparently killed more than 90 people, including many children, brought French condemnation, while the UK said it would call for urgent UN Security Council meeting.

President Obama smoked pot in high school. Why is he against legalizing marijuana?

8:53 am ET - A new biography details Barack Obama's use of marijuana in high school and college, not unusual for a young man at that time. As president, Obama has taken a tougher line on drug use, including marijuana for medical reasons.

The unusual confessor who broke the Etan Patz cold case

10:24 am ET - Killing Etan Patz in 1979 may have been the only time alleged killer Pedro Hernandez hurt someone. While he avoided detection for 33 years, the secret took enough of a toll that Hernandez broke down in tears as he confessed, appearing remorseful and ‘relieved.’

Etan Patz case: Despite confession, a trial would be tricky (+video)

3:32 pm ET - If Pedro Hernandez sticks to his confession and is found to be mentally competent, a judge will simply sentence him for killing schoolboy Etan Patz in 1979. But if he were to recant, prosecutors would face a hard decision.

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• Etan Patz killing: Motive is a puzzle for police, and potentially, a jury

Brown calls on Harvard to 'correct record' on Elizabeth Warren's heritage

7:05 pm ET - Sen. Scott Brown wants to know why Harvard listed his rival, Elizabeth Warren, as a native American professor. The issue has not tipped the race yet, but it could, the Brown camp says.

NASA: SpaceX docking ranks near top of space-age 'firsts' (+video)

4:07 pm ET - The successful docking of the SpaceX Dragon capsule with the International Space Station Friday is a landmark moment in opening space to wider use, NASA officials say.

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Are terrorists beyond redemption?

12:33 pm ET - The record shows that some radicals can be persuaded to give up the gun when inducements and local conditions are right. The Pentagon recently spent $4.5 million to find out more.

• Progress Watch: For Saudi ex-jihadis: a stipend, a wife, and a new life
• Focus: Deradicalizing boys in Pakistan

Gay marriage: Judge overturns DOMA, stepping up pressure on Supreme Court

3:58 pm ET - A federal judge struck down the 1996 Defense of Marriage Act (DOMA), which precludes gay couples from receiving federal marriage benefits. She is the third federal judge to do so, suggesting that the Supreme Court might need to step in soon to clarify its position.

• Major gay marriage cases in federal court and where they stand

Iran nuclear talks a 'complete failure,' says Iranian diplomat

1:49 pm ET - Both sides spoke of 'some common ground' that will drive the next round of Iran nuclear talks set for mid-June in Moscow. Yet a chasm of mismatched expectations widened in Baghdad.

• Iran nuclear talks: What world powers are offering, Iran isn't buying. Yet.

What Congress has planned after Memorial Day

2:20 pm ET - Congress will be racing to complete a number of priorities between Memorial Day and the August recess, all under the shadow of massive fiscal issues looming at year's end.