[BLOG] Some space science links

• Centauri Dreams considers the prospects for habitable worlds at Tau Ceti considering the composition of planets and the star’s evolution over time, considers the need for consistent observation in SETI programs, looks at possibly detectably volcanic 55 Cancri e, wonders if Fermi bubbles are detectable, considers stellar drift in the context of expanding interstellar civilizations, and looks at exoplanets with circular orbits.
• The Dragon’s Gaze notes that Kapteyn’s Star apparently does not support habitable-zone exoplanets, suggests that the superdense atmosphere of even a Venus analog could be eroded fairly quickly by a red dwarf, wonders if the G2 cloud at the galactic centre is a planetary embryo, wonders if water-rich asteroids have been detected impacting a white dwarf, and considers methane exoplanets.
• The Dragon’s Tales wonders if the geysers of Enceladus feeds the E ring of Saturn, looks at thermal anomalies on Enceladus, imagines ways to detect Europa’s tides by space probe flybys, and compares the arroyos of Mars and Earth.
• The Planetary Society Blog notes how radio astronomy can be contaminated by Earthly pollution, notes the society’s recent lightsail launch, and looks at Ceres.