ALMA telescope catches live planet-forming action for the first time

The ALMA telescope in Chile has, for the first time, observed a star system that might be in the early stages of planet formation. The picture has astronomers drooling over it because the study of the origins of planets has until now been limited to simulated computer models and observations of planets made after they formed. According to a…… Continue reading ALMA telescope catches live planet-forming action for the first time

Why do tilted/eccentric orbits form?

For all its mysteries, the Solar System is uniquely ideal in many ways. For one, while it has rocky inner planets and giant, gassy outer ones, astronomers have found that elsewhere, massive exoplanets often orbit close to their stars, as if they formed at a greater distance and then moved in. For another, the orbits of the…… Continue reading Why do tilted/eccentric orbits form?