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Chondrule formation by shocks?

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 […]

Most Asteroids are Not in the Asteroid Belt

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?

In the beginning was Theia

The Giant Impact Hypothesis is the most widely accepted theory for the creation of the Moon; the authors here investigate possible configurations of the early Solar System to produce the right conditions for impact between Earth and the doomed proto-planet Theia.

Can Icelines Explain Uranus and Neptune?

A new hypothesis posits that the ice giant planets formed between the CO and N2 icelines in the Solar System’s protoplanetary disk.

Mercury’s surprising density: What about magnets?

A new model explains Mercury’s major density with magnetism.

A Lunar Mystery Solved, with the Earth as the Culprit

Heat from the proto-Earth may have caused the difference in the Moon’s far- and near-side crust thicknesses.

Titan’s Cameo as an Exoplanet

This paper uses Cassini’s infrared eyes to watch the Sun appear to pass behind Titan and light up its atmosphere. From these observations, the authors model different components of the thick atmosphere, and gain new insights about how exoplanets with similar hazy atmospheres might look.

Testing the Titius-Bode law on exoplanets

From examining extrasolar planetary systems, we can test if the Titius-Bode “law” is actually a law.

A New Moon from Saturn’s Ring

For the first time ever, signatures from a newly formed moon are spotted in Saturn’s ring system.

An Exoplanet’s Fast Spin

Planets in the Solar System with a higher mass spin faster than lower-mass planets. But what about planets in other systems? The authors of this paper make the first measurement of an exoplanet’s spin to compare its spin and mass to Solar System planets.

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