[NEWS] Five space science links: Moon, Titan, Triton, Messier 83, dark matter

• Wired explains what would be the point of a crewed mission to the South Pole of the Moon, and what challenges remain.
• Evan Gough at Universe Today notes the evidence for the surprising depth and complex hydrological cycles of the methane lakes of Titan.
• Matt Williams at Universe Today reports on the interest of NASA in dispatching a low-cost mission to the Neptune moon Triton.
• Universe Today looks at the nearby barred spiral galaxy of Messier 83, just 15 million light-years away.
• Universe Today notes the recent disproof of the theory that dark matter is made up of primordial black holes.