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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: Planets Feed Baby Star Their Leftovers
2 January 2013 1:25 pm
Open wide, baby star: Here comes a stream of gas. Astronomers observing the still-forming sun HD 142527, located about 450 light-years away, have found that it is being fed by two hidden gas giant planets several times the mass of Jupiter. The planets, which are also still forming, each live in and are obscured by their own river of gas, which flows from a large, misshapen halo on the outer edge of the system (artist's impression, above; image from Atacama Large Millimeter/submillimeter Array telescope in Chile, inset). The planets' gravity draws gas from the halo, but much of that gas overshoots them and hurtles across a vast gap toward the star instead, the team reports online today in Nature. HD 142527 is only about 2 million years old, but it's a big newborn, already twice the mass of the sun. These rivers will help it grow even more.
See more ScienceShots.