SCIENCE IN THE NEWS WEEKLY
SpaceX Dragon Splashdown 'Like Seeing Your Kid Come Home'
The privately launched SpaceX Dragon supply ship returned to Earth last week, ending a revolutionary nine-day voyage to the International Space Station with an old-fashioned splashdown in the Pacific. The unmanned capsule parachuted into the ocean about 500 miles off Mexico's Baja California.
In other space news, astronomers have developed a new technique for calculating the masses and ages of old stars based on the masses of the white dwarfs they have become.
The Guardian recounted how the transit of Venus in the 18th century allowed astronomers to measure accurately the size of the solar system for the first time.
And two Colorado companies are working to create a less-costly vehicle to send into the stratosphere. StarLight--a two-stage system with a planelike vehicle suspended below a massive gas-filled balloon--could be the answer to a longtime challenge.
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PODCAST & VIDEO: 3D Printing Replacement Body Parts
Regenerative medicine, a fledgling field with the aim of regrowing parts from a person’s own cells, is being amplified with 3D-printing technology, which can now use organic materials to create scaffolds that cells need to grow into their final forms. Richard Wysk, a professor of industrial and systems engineering at North Carolina State University, discusses the latest successes with this research, and the timeline for creating more complicated structures.
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