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Super-Earth Unlikely Able to Transfer Life to Other Planets
March 20, 2012 — While scientists believe conditions suitable for life might exist on the so-called "super-Earth" in the Gliese 581 system, it's unlikely to be transferred to other planets within that solar ... > full story -
Cosmic Rays Alter Chemistry of Lunar Ice, May Create Building Blocks of Life
March 19, 2012 — Space scientists report they have quantified levels of radiation on the moon's surface from galactic cosmic ray (GCR) bombardment that over time causes chemical changes in water ice and can create ... > full story -
Near-Miss Asteroid Will Return Next Year, Even Closer
March 15, 2012 — When it whizzes past Earth in 2013, a newly discovered asteroid is going to miss our planet -- but not by much. The 50-meter space rock is expected to come closer than many satellites, highlighting ... > full story -
Meteorites Reveal Another Way to Make Life's Components
March 9, 2012 — Creating some of life's building blocks in space may be a bit like making a sandwich -- you can make them cold or hot, according to new NASA research. This evidence that there is more than one way to ... > full story -
Magnetic Moon: Magnetic Anomalies on Moon Are Result of Asteroid Collision
March 8, 2012 — Astronomers have proposed a surprisingly simple explanation for magnetic anomalies that have baffled scientists since the mid-1960s -- they are remnants of a massive asteroid. The researchers believe ... > full story -
Near-Earth Object Impacts
Asteroids, Comets and Meteors
Early Climate
Environmental Issues
Earth Science
Geology
New Research Supports Theory of Extraterrestrial Impact
March 5, 2012 — Scientists have identified a nearly 13,000-year-old layer of thin, dark sediment buried in the floor of Lake Cuitzeo in central Mexico. The sediment layer contains an exotic assemblage of materials, ... > full story -
The Blue Planet's New Water Budget: Do We Have Enough?
March 5, 2012 — Investigating the history of water on Earth is critical to understanding the planet's climate. One central question is whether Earth has always had the same amount of water on and surrounding it, the ... > full story -
Evolving Planets Get a Bumpy Ride
March 5, 2012 — The formation of planets occurs under constant bombardment from particles ranging from a few nanometers to tens of kilometers in size, according to recent analyses of asteroid samples by scientists. ... > full story -
Sun Delivered Curveball of Powerful Radiation at Earth
February 1, 2012 — A potent follow-up solar flare, which occurred Jan. 17, 2012, just days after the Sun launched the biggest coronal mass ejection seen in nearly a decade, delivered a powerful radiation punch to ... > full story -
Giant Asteroid Vesta Likely Cold and Dark Enough for Ice
January 25, 2012 — Though generally thought to be quite dry, roughly half of the giant asteroid Vesta is expected to be so cold and to receive so little sunlight that water ice could have survived there for billions of ... > full story
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