A monarch butterfly fed on silky red milkweed at one of the 7,450 Monarch Watch way stations spread along migratory routes.
Conservationists have planted milkweed, a favored food of the butterfly, along migratory routes where natural habitat has been plowed under for crops.
Americans were bracing for a Monday deadline to sign up for health insurance, after a series of changes that has caused uncertainty among insurers and confusion among consumers.
After another school shooting, many families of victims and law enforcement officials have begun urging journalists and public officials to avoid using the names and photos of gunmen in public.
Secret documents reveal more than 1,000 targets of U.S. and British surveillance in recent years, including the office of an Israeli prime minister and heads of international aid organizations.
At a news conference, President Obama held out hope for a better year but suggested little strategy for achieving once-ambitious goals.
The judge said that Utah’s amendment barring same-sex marriage violated the United States Constitution. If the ruling is upheld, Utah will become the 18th state to permit same-sex marriage.
The Darpa Robotics Challenge is more than a showcase for a new generation of robots. It is also an attempt by the federal government to push technology forward, to create machines that can perform dangerous tasks in humans’ place.
Four service members were wounded on Saturday after aircraft flying into South Sudan to evacuate American citizens were attacked and forced to turn back, officials said.
Two astronauts began fixing a broken pump at the International Space Station, wearing spacesuits fitted with improvised safety measures.
The family of a girl who was declared brain-dead in California after complications from a tonsillectomy want a neurologist to examine her further.
The bank emailed the roughly two million customers affected by the security breach at Target that they would not be able to withdraw more than $100 a day.
More and more radio stations are trying an all-Christmas-music format to bolster their ratings temporarily.
Mr. Clark’s successful child molestation lawsuit against the Boy Scouts of America in Oregon led to the release of a trove of documents containing thousands of accusations of sexual abuse.
What happens when you raise the minimum wage in a down economy?
It’s all about getting you to forget your wallet.
The “brave maverick” who became the “bitter old man” is now “learning to let go.”
Advances in treatment have improved survival rates for women with breast cancer in the United States, but the majority of those gains have bypassed black women.
The Times would like to hear from Americans who have signed up for health care under the Affordable Care Act.
In the year since the school killings in Newtown, Conn., states have passed 109 gun-related bills. Of those, 70 loosened gun restrictions and 39 tightened them. A chart tracks their paths.
The United States continues to love and revile its hundreds of millions of firearms. Here is a look at that complicated relationship, told through the personal stories of Americans.
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Graphic: Changes and Delays to the Health Care Law
How Has Breast Cancer Touched Your Life?
