Ron Cowen's Articles
- NewsA ground-based device would use light to push debris off a collision course.
- NewsAfter three flybys, a NASA spacecraft settles in for a closer look at the first planet.
- NewsMeasurements provide further evidence for a cosmic push that is accelerating the expansion of the universe.
- Deleted ScenesSkepticism greets claim that three space rocks may contain microfossils of extraterrestrial bacteria.
- NewsThe National Research Council issues recommendations for planetary science projects that NASA and NSF should fund starting in 2013.
- NewsTunnels through spacetime would connect pairs of stars, new simulations suggest.
- NewsDespite a recent flare, solar physicists project low activity for up to a decade.
- NewsNASA takes pictures of Tempel 1 five years after shooting it with a probe.
- NewsReseearchers say they have found a way to directly observe the existence of spinning black holes.
- NewsThe galaxy appears to have gobbled up stars from another galaxy 700 million years ago, and may still have an appetite.