The Planets in the Gaps
We’ve strongly suspected they’re there. A new method promises to prove it.
Basaltic asteroids might not all be from Vesta
Most basaltic asteroids are thought to originate from the dwarf planet Vesta. However, some of these asteroids are far from Vesta and exhibit different spectra, implying a second point of origin.
Like a Captured Stone: How did Pluto Settle in its Peculiar Orbit?
We dive back into one of the earliest studies of the outer solar system that helped us understand how four gas giants playing a chaotic game of catch could have knocked Pluto into its topsy-turvy orbit.
A Pebbly Barrier to Planet Formation
While a planet is forming, its passage through the protoplanetary disk can prevent pebbles from migrating inwards and accreting onto the planet.
Imaged Companion Drives Spiral Arms in Disk
Using 14 years of high resolution near-infrared imaging, radio observations of molecular gas, and a hydrodynamic simulation the authors show that spiral arms seen in the protoplanetary disk around HD 100453 A are caused by its M-dwarf companion.
Diagnosing the amnesia of Exoplanetary Systems
How can size ordering of multiplanet systems be used to quantify the information content that these systems may retain about their formation history? Think information entropy.