Christa McAuliffe never had the chance to fulfill her dream of teaching from space and in the aftermath of the accident, her lesson plans were filed away by NASA with sadness and grief...

A Taliban suicide bomber wearing a military uniform hit an Afghan army base near the city of Jalalabad, the Afghan defence ministry said...

The American Museum of Natural History in New York will unveil an exhibition of the world's largest dinosaurs this Saturday. Some visitors may wonder how the creatures could ever eat enough to sustain their size, but the Explainer's mind is in the Jurassic gutter. How did those monsters manage to have sex?...

The Japanese government estimates that the damage from the March 11 earthquake alone will top $300 billion, already making it the costliest natural disaster in history. But its broader impact on the global economy may prove even more profound...

It seems to me there are two ways of understanding the document assembled from a jumble of boxes, disks and printed or handwritten papers that, at the time of David Foster Wallace’s suicide in 2008, ran into the high hundreds of pages — a document that, conscientiously and intelligently whittled down by Wallace’s editor Michael Pietsch to 500-odd pages, is now being published under the title “The Pale King,” and, just as significantly, the subtitle “An Unfinished Novel.”...

For three decades we have conducted a massive economic experiment, testing a theory known as supply-side economics. The theory goes like this: Lower tax rates will encourage more investment, which in turn will mean more jobs and greater prosperity—so much so that tax revenues will go up, despite lower rates. The late Milton Friedman, the libertarian economist who wanted to shut down public parks because he considered them socialism, promoted this strategy. Ronald Reagan embraced Friedman’s ideas and made them into policy when he was elected president in 1980. For the past decade, we have doubled down on this theory of supply-side economics with the tax cuts sponsored by President George W. Bush in 2001 and 2003, which President Obama has agreed to continue for two years.

You would think that whether this grand experiment worked would be settled after three decades...

North Korea has identified a detained American man, who was arrested last year for "committing a crime" against the reclusive nation, according to state-run media. "U.S. citizen Jun Young Su was arrested in November 2010."...

During this week -- Military Families Week -- I am reminded of the valuable lessons I learned from my father about the humanity and importance of those who defend our freedom...

Former President Hosni Mubarak and his two sons have been detained for 15 days for questioning about corruption and the abuse of power during Mr. Mubarak’s three-decade rule, Egyptian authorities said Wednesday...

On the evening of April 12, 1861, Walt Whitman attended a performance of Fromental Halévy’s opera “The Jewess” at the Academy of Music, on 14th Street and Irving Place in Manhattan. Just before midnight he was walking down the west side of Broadway, toward the Fulton Ferry to return to his home, in Brooklyn. Suddenly, he later recalled, he “heard in the distance the loud cries of the newsboys, who came presently tearing and yelling up the street, rushing from side to side more furiously than usual.”...