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17 April 2014 12:48 pm ,
Vol. 344 ,
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...
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,...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: Giving Birth at 10 Million Years Old
30 January 2013 5:30 pm
By its 10-millionth birthday, a typical star has left its reproductive years behind. The hydrogen that surrounds it has finished condensing into gas giants, leaving the star to spend retirement drifting through its galactic neighborhood surrounded by its offspring. But the European Space Agency (ESA)'s Herschel telescope has spotted a stellar late bloomer living only 176 light-years away: TW Hydrae, a 10-million-year-old star still orbited by enough material to give birth to 50 planets the size of Jupiter. ESA and NASA scientists measured the light emitted by the hydrogen deuteride—a heavier form of hydrogen—in the planet-forming disc around the star (artist's impression above), which allowed them to precisely calculate the disc's mass. By applying this new technique to other stars, researchers can begin to understand just how diverse stellar families are. So will TW Hydrae ever become a parent? Check back in 176 years.
See more ScienceShots.