Title: A critical analysis of shock models for chondrule formation Authors: Stammler & Dullemond First Author’s Institution: Heidelberg University and International Max Planck Research School for Astronomy and Cosmic Physics , Heidelberg Paper Status: Accepted for publication in Icarus Extraterrestrial rocks are important What’s a chondrule? Never heard of that before. That’s probably your first […]
Simulations show that the Oort cloud contains eight billion asteroids (in addition to hundreds of billions of comets). Do these asteroids pose a threat to Earth?
Those of us who love astrobiology get really worked up about the lack of Earth-sized exoplanets found at Earth-like distances from their stars. All we want, we who hope for lots of extraterrestrial life, is a bunch of Earth-like planets doing Earth-like things so we can feel better about the odds for lots of Earth-like life in the universe.
This month’s undergraduate research post features a student who created N-body simulations of star clusters. Read on to find out what she learned about the clusters’ evolution!
Spherical cows have a long and storied history in physics, but does this type of crude approximation lead to realistic conclusions in the case of star formation? The combination of large- and small- scale simulations tests this idea.
How well do the current methods of measuring the star formation rate of galaxies match then known star formation rate in simulations?
The number and luminosity distribution of white dwarfs stars can be used to help figure out the past history of the Galactic halo.
Can bars in a galaxy cause radial migrations of stars? The simulations say yes, but these observations suggest otherwise…
Saturn’s moon Iapetus has been bombarded pretty heavily by debris from the outer Solar System. But it’s not TOO smashed up — its strange, 20-km-high, equatorial ridge is still standing. The authors of this paper simulate the bombardment of Iapetus to figure out how much mass could have collided with the moon without destroying the ridge.
Today’s paper proposes a detection method for technologically advanced life that goes beyond the usual SETI signals: looking at exoplanet atmospheres not just for the presence of life in general, but for the chemical signatures of intelligent life.