The ousted Ukrainian president says Moscow's annexation of the Black Sea peninsula is "a major tragedy" and he hopes to persuade Russian President Vladimir Putin to return it.
Here's the latest bit of evidence that exercise keeps the brain fit. Much of the research has been in older people, but this study found that being fit in your 20s makes you sharper in middle age.
Thirteen years in the making, the Prison Rape Elimination Act is starting to have an impact. Texas Gov. Rick Perry says it's "ill-conceived," but many other states are adopting the law's standards.
The incumbent mayor of the nation's capital will not be re-elected. A federal investigation into Vincent Gray's 2010 campaign, along with allegations lodged just weeks before the election, helped propel his closest opponent to a surprise double-digit victory in the Democratic primary.
Attitudes toward drug use continue to evolve. A new poll from the Pew Research Center shows that more people favor alternatives to prison for non-violent drug offenders.
Adam Lioz, of the public policy organization Demos, says that Wednesday's Supreme Court ruling will further empower a small, elite group of political donors. He offers a critical perspective on the ruling.
A divided Supreme Court eliminated the overall limits on a donor's contributions to federal candidates and campaigns, while leaving in place the limit on what a donor may give to one candidate.
Texans overwhelmingly choose cars and trucks for their commutes, but in cities like Houston, Dallas and San Antonio, policy leaders have incentives to support cycling. They say it's good for business.
The IRS has not audited a church in five years. Some televangelists are taking advantage of that inaction to shield millions of dollars from public scrutiny.
Tuna, swordfish and other migratory fishes are being overfished by vessels on the high seas. A new proposal says we should close these international waters for a few years to let the fishes rebound.
The Russian president and Lyudmila, his wife of 30 years, announced in June they intended to end their marriage.
In nine months the human brain grows from a single cell to more than 80 billion. Mapping how genes are activated gives scientists clues to the origins of mental disorders like autism.