Washington Post: Six years ago, the Japanese spacecraft Hayabusa landed on the near-Earth asteroid 25143 Itokawa and retrieved a sample. A capsule containing the sample landed on Earth last summer. NASA has just announced plans for a similar mission. In 2016 the billion-dollar OSIRIS-REx spacecraft will begin its four-year journey to the near-Earth asteroid RQ36. Once OSIRIS-REx is in orbit around the asteroid, mission planners will identify a suitable landing site. As the Washington Post‘s Brian Vastag explains, planetary scientists want to analyze asteroid material because of its possible relevance to the origin of life on Earth. Ground-based spectroscopic measurements indicate that RQ36 contains carbon-bearing materials. If the same materials made it through the asteroid belt and landed on Earth, they might have provided a key ingredient for life, carbon.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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