If engineers cannot restore a mechanism that keeps the Kepler spacecraft’s telescope pointed, one of the most romantic and successful of NASA’s missions could end.    

Elena Barbera has undertaken a modest fund-raising drive with daily ascents of the Bunker Hill Monument.    

Researchers fused skin cells with donated human eggs to create human embryos that were genetically identical to the person who provided the skin cells.    

O. J. Simpson testified in Las Vegas on Thursday, trying to overturn the kidnapping and robbery conviction that sent him to prison.    

Once a mainstay of farming, horses are back, as clean and organic as the crops they plow.    

An inspector general’s report described a failure to stop the singling out of conservative groups as Congressional aides tried to find out how far knowledge of the effort reached.    

Russia’s Federal Security Service, the successor to the Soviet-era K.G.B., released photographs and video of Tuesday’s arrest of an American accused of being a Central Intelligence Agency officer.    

For reality TV show producers, Louisiana, home of “Swamp People” and “Duck Dynasty,” is a gift that keeps on giving.    

Ariel Castro, who was charged with holding three women captive and raping them over a decade, plans to plead not guilty to criminal charges, one of his lawyers said.    

One of my fears with picking a roommate is that I might not end up getting along with him and then I will regret not having the selection be made randomly.    

The seizure of the two mobile phones used to record the beating of a man by police in California has led to accusations that the sheriff’s department is trying to cover up the episode.    

Attorney General Eric H. Holder Jr. said that the leak in question was among the two or three most serious leaks he had seen since the 1970s.    

A sergeant from Fort Hood, Tex., is under investigation for allegations of pandering, abusive sexual contact, assault and maltreatment of subordinates, Pentagon officials said    

Officials in New Orleans have defended parades like the one that led to a shooting on Sunday that wounded 19 people, calling them a crucial part of the city’s culture.    

The music business partners Jimmy Iovine and Dr. Dre gave $70 million to U.S.C. to start an academic program for the development of creative entrepreneurs.    

House Republicans plan to vote this week to repeal President Obama’s health care overhaul, the 37th time they will have tried to eliminate, defund or curtail the law.    

Kenneth R. Feinberg, a lawyer with a thriving mediation practice, has become the go-to man for running the compensation funds for victims of catastrophes.    

Dr. Kermit Gosnell waived his right to appeal three murder convictions related to failed abortions at his Philadelphia clinic.    

The evolving political dynamics of Detroit mean that the flurry of campaigning happens in a city where elected officials no longer have final say.    

Attorney General Eric H. Holder Jr. said that the leak in question was among the two or three most serious leaks he had seen since the 1970s.