Astronomers say that, for the first time, they have discovered one of the ingredients of life _ sugar _ in a gas cloud surrounding a young star.
Neil Armstrong inspired millions with his moonwalk. Can a feisty robotic rover exploring Mars do the same for another generation? With manned missions beyond the International Space Station on hold, the spotlight has turned on machines.
Scientists have found three well preserved ancient insects frozen in amber _ and time _ in what is Earth's oldest bug trap.
As space exploration has become more common and the number of astronauts has risen past 300, many names have faded into the background. But some will forever be associated with the golden age of space exploration. Some examples:
When man first harnessed fire, no one recorded it. When the Wright Brothers showed man could fly, only a handful of people witnessed it. But when Neil Armstrong took that first small step on the moon in July 1969, an entire globe watched in grainy black-and-white from a quarter-million miles away.
Notable events in the history of human space exploration:
When Neil Armstrong walked on the moon all those years ago, he made his country believe that anything was possible with ingenuity and dedication _ and in the process became one of America's greatest heroes, his friends, colleagues and admirers said Saturday after news that the former astronaut had died.
John Glenn, the first American to orbit the Earth, said Neil Armstrong dedicated himself to his country and will always be remembered for pioneering the way to the moon.
The Apollo space program stretched from 1961 to 1972, culminating in a dozen men walking on the moon in its final years. The moonwalkers were, in order:
Was the walk on the moon one small step for man, or a man?
NEW YORK (AP) _ When Neil Armstrong and his fellow astronauts reached the moon more than four decades ago, the historic event was reported by The Associated Press with a flash _ the AP's top-level news alert. It read:
Quotes about Neil Armstrong, the American who was the first human to walk on the moon, who died Saturday at age 82:
Neil Armstrong made "one giant leap for mankind" with a small step onto the moon.
A federal appeals court on Friday refused to order the Obama administration to stop funding embryonic stem cell research, despite complaints the work relies on destroyed human embryos.
Viewers can now relive the drama of the Curiosity rover's landing on Mars with a new NASA video detailing the final moments of touchdown.
Two years before Hurricane Irene created the prospect of a flooding nightmare in New York City, 100 scientists and engineers met to sketch out a bold defense: massive, moveable barriers to shield the city from a storm-stirred sea.
The University of Maryland Eastern Shore has been awarded a $500,000 grant from National Science Foundation to help prepare students for science jobs.
A unique species of near-toothless rat that lives off earthworms and doesn't chew or gnaw has been seen in Indonesia.
Nuclear watchdogs are fighting a proposal to ship tons of plutonium to New Mexico, including the cores of nuclear warheads that would be dismantled at an aging and structurally questionable lab atop an earthquake fault zone.
David Biello, environment & energy editor, Scientific American