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rfmcdonald- D-Brief notes that life could exist in the briny subsurface oxygen-rich water thought to exist on Mars.
- D-Brief notes that the question of where, exactly, the Mars 2020 rover will land on the red planet is a matter of hot controversy.
- D-Brief notes the care with which Hayabusa2 is being prepared for its Ryugu landing.
- D-Brief notes the mysterious asteroid 3200 Phaethon, with its orbit bringing its mysterious body periodically close to the sun.
- D-Brief notes the mysterious lines of Saturn's moon Dione, apparently created by snowfall--but snowfall from where?
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