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McLean et al. observe a new sample of late-M and L dwarfs with the Very large Array to search for a relation between rotation rate and radio activity for ultracool dwarfs. Continue reading
Habitable exomoons appear all over science fiction, but could they exist in real life? Could we detect them if they did? Continue reading
What does the Kepler data tell us about the number of planets per star and the distribution of planets in radius and orbital period? Andrew Youdin addresses that question by considering the selection effects in the Kepler sample and fitting a joint powerlaw in radius and orbital period. Continue reading
Sukrit and I just got back from the Saas-Fee astrobiology course. We learned about deep-sea life, the evolution of Earth’s atmosphere, the search for life on Titan, and more. Continue reading
In 2006 Hsieh & Jewitt published the discovery of several main belt asteroids observed to have tails (just like comets do), which activate when nearest the Sun (just like comets do). In this paper, Licandro et al. test the origins of two so-called “main belt comets” by looking at spectra. Continue reading
The authors consider a possible signature of an intelligent, spacefaring life form, more technologically advanced than ourselves: they consider the effects that significant asteroid mining would have on a debris disk and determine whether these effects would be observable. Continue reading
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