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Scientists are looking for elements and molecules that signify life as we know it. But even if they don’t find those molecules, minerals contain important information about the Martian environment. That could help scientists determine if life could have survived on the planet.
It may take an unusual muse to be deeply inspired by the body's insides. Artist Sara Nilsson possesses just such a muse–as well as the skill to create breathtakingly beautiful, anatomically accurate cross-sections of the human body with quilled paper.
Last Sunday, NASA scored a long-distance touchdown…on Mars! The Mars Science Laboratory, nicknamed "Curiosity" is the largest, most complex spacecraft ever to have set down on the Red Planet.
In 2009, U.S. Secretary of the Department of Energy Steven Chu dismissed zero-emission hydrogen fuel cell vehicles as an impractical alternative to electric cars. Now an abundant supply of natural gas, from which hydrogen can be extracted, is changing Chu's mind, but that natural gas comes from the controversial hydraulic fracturing process.
Many people continue to doubt the evidence for climate change, evolution, and vaccine safety, even though the scientific consensus on these issues is rock solid. Among the most troubling evidence-resistant theories is the long-debunked yet persistent myth that vaccines cause autism—a completely unfounded belief–leading to general doubts about vaccine safety, with dangerous public health consequences.
While nearly all eyes are focused on Mars, two astophysicists at NASA's Goddard Space Flight Center have been quietly staring at the sun instead.
Scientists thought they understood how arteries hardened and clogged, but they may have been wrong. New research indicates that a previously unknown type of stem cell is actually the underlying cause of clogged arteries. If confirmed, it could lead to new therapies.
As we approach the limits of our power and water, we will face some wrenching decisions with geological dimensions.
A new ordinance in Alameda County requires the pharmaceutical industry to pay for disposal of extra medicine. The regulation is part of a larger movement to shift responsibility for waste disposal from local governments to companies that make products like paint, medicine and batteries.
Virtual avatars are one thing. But what about real bodies? Would identifying with another person's body make you behave more like that person? If the body belongs to a different gender, age, or ethnicity than yours, would you become more empathic to others in that group?