To use hydrogen as a clean energy source, some engineers want to pack it into a larger molecule, rather than compressing the gas into a tank. But getting hydrogen out of a molecule requires a catalyst. Now, researchers reveal new details about one such rhodium-based catalyst. The results are a step toward designing catalysts for use in hydrogen energy applications such as fuel cells.img src="http://feeds.feedburner.com/~r/sciencedaily/~4/KATqGMwjazQ" height="1" width="1"/

Organic molecules in Mars meteorites did not originate in alien microbes.

Also in the works: A computer than can tell when you are pissed at it.

The strange Medusae Fossae Formation may be 2 billion years older than previously thought.

Dramatic changes in pressure did not appear to harm hitchhiking mollusks.

A new petition asks to make taxpayer-funded research free to everyone to read. Startups and small businesses would benefit, they say.

NASA's Cassini probe is preparing to tilt its orbit around Saturn dramatically.

According to a study done by MIT, most people smile when frustrated. They have gone on to create a computer program to differentiate between happy smiles and frustrated smiles. This research is done in part to better understand autistic behavior.