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| Disks don't need planets to make patterns, NASA study shows Posted: 13 Jul 2013 06:52 AM PDT Many young stars known to host planets also possess disks containing dust and icy grains, particles produced by collisions among asteroids and comets also orbiting the star. These debris disks often show sharply defined rings or spiral patterns, features that could signal the presence of orbiting planets. Astronomers study the disk features as a way to better understand the physical properties of known planets and possibly uncover new ones.  |
| Sculpting flow: Supercomputers help microfluidics researchers make waves at the microscopic level Posted: 12 Jul 2013 01:10 PM PDT Researchers have discovered a new way of sculpting tailor-made fluid flows by placing microscale pillars in microfluidic channels. The method could allow clinicians to better separate white blood cells in a sample, increase mixing in industrial applications, and more quickly perform lab-on-a-chip-type operations.  |
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