Latest Henry Crater Stories
Climate cycles persisting for millions of years on ancient Mars left a record of rhythmic patterns in thick stacks of sedimentary rock layers, revealed in three-dimensional detail by a telescopic camera on NASA's Mars Reconnaissance Orbiter. Researchers using the High Resolution Imaging Science Experiment camera report the first measurement of a periodic signal in the rocks of Mars. This pushes climate-cycle fingerprints much earlier in Mars' history than more recent rhythms seen in Martian...
- Bad luck; misfortune.
- The smallest amount possible or the most worthless thing.