Piecing together the Hubble constant
Different methods of measuring the Hubble constant yield slightly different values, but they are still in reasonable agreement.
Testing the Titius-Bode law on exoplanets
From examining extrasolar planetary systems, we can test if the Titius-Bode “law” is actually a law.
Hot Jupiters and Their Effects on Host Stars
Hot Jupiters offer an interesting mechanism for affecting the rotation and magnetic activity levels of their host stars.
Examining Martian Water With Hydrogen Isotopes
Even though we can’t see any liquid water on Mars today, we can still examine the history of water loss on the Martian surface.
Tracking the Accretion Flow Geometry Around Black Holes
By looking at the spectral changes of the accretion disk emission around black holes, we can trace the physical changes of the accreting material.