Planet Earth is situated in what astronomers call the Goldilocks Zone — a sweet spot in a solar system where a planet’s surface temperature is neither too hot nor too […]
Astrogeology
Atmospheric Signs of Volcanic Activity Could Aid Search for Life
Planets with volcanic activity are considered better candidates for life than worlds without such heated internal goings-on. Now, graduate students at the University of Washington have found a way to […]
Amino Acids in Chondrites
Many theories about the origins of life involve the delivery of organic molecules to the early Earth by objects from space. Previously, scientists have identified amino acids in carbon-rich meteorites. […]
Collisions of Small ice Particles Under Microgravity Conditions
Understanding the collisional properties of ice is important for understanding both the early stages of planet formation and the evolution of planetary ring systems. Simple chemicals such as methanol and […]
Determining Interior Structure of Rocky Exoplanets From Mass and Radius Measurements
We present an inversion method based on Bayesian analysis to constrain the interior structure of terrestrial exoplanets, in the form of chemical composition of the mantle and core size. Specifically, […]
New Instrument Reveals Recipe for Other Earths
How do you make an Earth-like planet? The “test kitchen” of Earth has given us a detailed recipe, but it wasn’t clear whether other planetary systems would follow the same […]
Study Hints that Ancient Earth Made Its Own Water Geologically
A new study is helping to answer a longstanding question that has recently moved to the forefront of earth science: Did our planet make its own water through geologic processes, […]
What Chemistry Is Rosetta’s Comet Lander Looking For?
Today, the European Space Agency’s (ESA) Rosetta mission is attempting one of the most ambitious maneuvers in space exploration: to soft-land a robotic probe on a comet for the first […]
Volatile Planetary Evolution and the Possibility of Life
In another step forward in the search for habitable planets, a team of researchers based out of the US and Chile announced that they have located a large swarm of […]
Water on the Moon: It’s Been There All Along
Traces of water have been detected within the crystalline structure of mineral samples from the lunar highland upper crust obtained during the Apollo missions, according to a University of Michigan […]
