planetary migration
Saturn-Sized Exoplanet Isn’t Losing Mass Quickly Enough
We have discovered over 5,000 planets around other star systems. Amongst the veritable cosmic menagerie of exoplanets, it seems there…
The Discovery of a Hot Neptune that Shouldn’t Exist
1800 light-years away, an unlikely survivor orbits an aged star. This rare planet is called a hot Neptune, and it's…
What Did The Solar System Look Like Before All The Planets Migrated?
Early planetary migration in the solar system has been long established, and there are myriad theories that have been put…
Do Hot Jupiters Form Close in, or Do They Migrate? A Newly-Discovered Planet Might Help Answer This
The recent discovery of a very young gas giant could offer clues about how "Hot Jupiters" form and whether or…
Maybe the Elusive Planet 9 Doesn’t Exist After All
Oh Planet Nine, when will you stop toying with us? Whether you call it Planet Nine, Planet X, the Perturber,…
‘Nomad’ Planets Could Outnumber Stars 100,000 to 1
[/caption] Could the number of wandering planets in our galaxy – planets not orbiting a sun -- be more than…
Astronomy Without A Telescope – The Nice Way To Build A Solar System
When considering how the solar system formed, there are a number of problems with the idea of planets just blobbing…