Gravity-Darkened Seasons on Planets
Spinning stars can potentially double the number of seasons that a planet experiences due to surface temperature variations on the stellar surface.
Remedying Spectral Confusion in Cosmology
In today’s guest post, Caitlin Doughty discusses how carbon lines are misidentified and their impact on cosmology.
What did the first collections of stars look like?
Simulations of the first groups of stars display a variety of shapes and sizes, and may provide clues as to where their ancestors are hiding today
Mars: Warm and cloudy with a chance of liquid water
Early in its history, cloudy weather could have helped Mars retain enough heat for liquid water to exist on its surface.
Probing the Galaxy with Dead Stars
White dwarf stars are the final evolutionary state of most stars. They are everywhere in the Galaxy and are relatively easy to model. So can we learn about our Galaxy solely by studying them? The authors of today’s paper show us a way.
Image credits: ESO/Y. Beletsky.
Cosmic Rays and Dwarf Galaxies
Supernovae in dwarf galaxies can produce large amounts of cosmic rays, which can drastically affect the galaxies.