Can Planets Maintain Vega’s Debris Disks?
Vega’s system of debris disks can be explained by a series of planets that constantly transport material inwards towards the star.
A Mystery Star Wrapped in a Stingray
How can a star heat up by 40,000 K in just 30 years? Reindl et al. explore the star at the heart of the Stingray Nebula to find out.
Pluto’s Dusty Neighborhood
Pluto’s small satellites have very low escape velocities, which means that dust kicked up by impacts has a relatively easy time of escaping rather than settling back down to the little moon’s surface. Today’s paper looks at the fates of that dust.
How giant planets affect accretion of water by rocky planets
How do giant planets affect the water content of rocky planets in habitable zones? Astronomers have run new planet formation simulations to try to answer this question.
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.
A New Way to Die: What Happens to Supermassive Stars?
Supermassive black holes are everywhere in our Universe, but we don’t know where they came from. Supermassive stars could have given birth to these massive objects. However, that is not all these fifty to one hundred solar mass stars could be responsible for…