I examine the standard model of planet formation, including pebble accretion, using numerical simulations. Planetary embryos large enough to become giant planets do not form beyond the ice line within ...

A close view of an ultra-distant fossil is helping to answer questions about the formation of planets throughout the universe. NASA's New Horizons probe buzzed the outer solar-system object early on ...

Two months ago, Dr. Hal Levison from the Southwest Research Institute (SwRI) in Boulder, Colorado, co-authored a paper that described a theory of “pebble formation” for gas giants. He has now expanded ...

The researchers showed that isotopes of supernovae, in particular Zr-96, were transported through interstellar space in the form of ice rather than stardust, and the Earth could form according to the ...

Overcoming type I migration and preventing low-mass planets from spiralling into the central star is a long-studied topic. It is well known that outward migration is possible in viscous-heated discs ...