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The success of the Orion spacecraft test flight has paved the way for America to carry humans to Mars and beyond. Yet many scientists say that manned missions are expensive and unnecessary and that robot probes are the future.
Related: Next giant leap for mankind should be to moon, not Mars, says Chris Hadfield
FIFTY years ago this month, the Irish physicist John Stewart Bell submitted a short, quirky article to a fly-by-night journal titled Physics, Physique, Fizika. He had been too shy to ask his American hosts, whom he was visiting during a sabbatical, to cover the steep page charges at a mainstream journal, the Physical Review. Though the journal he selected folded a few years later, his paper became a blockbuster. Today it is among the most frequently cited physics articles of all time.
Pretty soon, powering your tablet could be as simple as wrapping it in cling wrap. That’s Illan Kramer’s (ECE) hope. Kramer and colleagues have just invented a new way to spray solar cells onto flexible surfaces using miniscule light-sensitive materials known as colloidal quantum dots (CQDs)—a major step toward making spray-on solar cells easy and cheap to manufacture.
Here’s why something as basic as a battery both thrills and terrifies the U.S. utility industry.
Police in Berlin are considering deploying software that predicts crimes -- and have even dubbed the project "Precobs" in a nod to a term used in "Minority Report," the sci-film based on a similar premise.
An American probe that will explore Pluto woke up from its slumber Saturday, after a nine-year journey to take a close look at the distant body for the first time.
Related: NASA launches new Orion spacecraft and new era
Using an experiment carried into space on a NASA suborbital rocket, astronomers at Caltech and their colleagues have detected a diffuse cosmic glow that appears to represent more light than that produced by known galaxies in the universe. Initially some researchers proposed that this light came from the very first galaxies to form and ignite stars after the Big Bang. CalTech researchers say that the best explanation is that the cosmic light originates from stars that were stripped away from their parent galaxies and flung out into space as those galaxies collided and merged with other galaxies.
A weird circular landform recently spotted on the surface of Mars might look like a deformed waffle--or maybe the surface of a human brain. But as to what the strange feature really is--and how it got there--scientists at this point have only opinions.
A robot that can scale the faces of steep cliffs might one day help explore Mars and find signs of life.
If there’s intelligent life in the cosmos, it’s probably nowhere we can get to anytime soon. At least that’s the finding of the astrobiologist who, for the first time in decades, has rendered a major update to the key formula scientists use to seek out interstellar life.
Floating in a cloud and noshing sweets while wrapped in a cozy bubble sounds like a pleasant dream. For some lucky bacteria, it may be a reality.
These days, with the abundance of artificial light, TV, tablets and smartphones, adults and children alike are burning the midnight oil. What they are not burning is calories: with later bedtimes comes the tendency to eat. A new study cautions against an extended period of snacking, suggesting instead that confining caloric consumption to an 8- to 12-hour period-as people did just a century ago-might stave off high cholesterol, diabetes and obesity.
His corn and bean fields ravaged by drought, Nicaraguan farmer Leonel Sanchez Hernandez grudgingly found a new harvest: tarantulas.
People hold beliefs for a complex variety of reasons. Some of these beliefs may be based on facts, but others may be based on ideas that can never be proved or disproven. For example, people who are against the death penalty might base their belief partly on evidence that the death penalty does not reduce violent crime (which could later be shown to be false), and partly on the notion that the death penalty violates a fundamental human right to life. The latter is an unfalsifiable belief, because it can’t be changed purely by facts.
The remains of a 6th Century church on a Cornish beach have been successfully excavated.
A Japanese-Egyptian team is reconstructing Khufu’s second solar boat, 4,500 years after it was buried to ferry the pharaoh to eternity.
Researchers have discovered an intact 'ghost ship' in 2,000 feet of water nearly 20 miles off the coast of Oahu. Sitting upright, its solitary mast still standing and the ship's wheel still in place, the hulk of the former cable ship Dickenson, later the USS Kailua, was found on the seabed last year on a maritime heritage submersible mission.
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