(Phys.org) —Astronomers know that gravity from Saturn's various moons tug at the planet's rings and make spirals in them. But the catalyst for certain spiral patterns has been difficult to pin down. Now, ...

Space & Earth - Space Exploration

Jun 12, 2013 4.8 / 5 (6) 0 |

(Phys.org) —A Cornell study offers further proof that the divergence of humans from chimpanzees some 4 million to 6 million years ago was profoundly influenced by mutations to DNA sequences that play roles ...

Biology - Biotechnology

Jun 12, 2013 3.8 / 5 (4) 0 |