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6 March 2014 1:04 pm ,
Vol. 343 ,
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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ScienceShot: Compact Solar System Could Fit Inside Mercury's Orbit
15 October 2012 1:56 pm
The paths of the sun's planets take up billions of kilometers of space, but now astronomers using NASA's Kepler spacecraft (shown) have spotted an alien solar system with five planets whose orbits could all fit inside a region that's just a quarter the size of Mercury's path. Kepler found the planets going around the star KOI 500 by detecting the tiny dips they cause when they pass in front of their sun, dimming its light ever so slightly. The planets are somewhat larger than Earth, and all five make Mercury, the sun's fastest planet, which whirls around our star every 88 days, seem like a laggard. Their years are just 1.0, 3.1, 4.6, 7.1, and 9.5 days long, so they're the perfect place to reside if you like frequent birthday parties—and can stand the heat.
See more ScienceShots.