- Jan 25, 2002A discovery by a NASA scientist of sugar and several related organic compounds in two carbonaceous meteorites provides the first evidence that another fundamental building block of life on Earth may have come from outer space.
- Jan 23, 2002Geochemists and microbiologists are delving into the details of extreme biochemistry deep within the Earth, where chemical and metabolic processes go at glacial pace, and life appears to be completely disconnected from the photosynthesis-based biological cycles that dominate surface life.
- Dec 31, 2001Magnetite crystals in the martian meteorite ALH84001 may be of biological origin.
- Dec 24, 2001The hills of Western Australia are home to zircons nearly four-and-a-half billion years old. The tiny crystals may change our understanding of the newly-formed Earth.
- Dec 19, 2001When unusually warm dust was first discovered around a nearby star, called zeta Leporis, infrared astronomers began hunting in detail for the heat source.
- Dec 10, 2001The planet Mars we know today is a cold, dry, desert world, but suppose the martian climate is changing even now, year to year and decade to decade?
- Dec 5, 2001Astronomers have made the first direct detection and chemical analysis of an atmosphere of a planet that exists outside our solar system.