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Hubble Telescope finds tiny moon orbiting dwarf planet

CAPE CANAVERAL, Fla. — Chalk up a moon for the icy dwarf planet Makemake.

The Hubble Space Telescope has detected a tiny, dark moon circling the dwarf planet on the frozen fringes of our solar system. On Tuesday, scientists announced the discovery by some members of the team that spotted Pluto’s smaller moons years ago.

Dinos decline cited

NEW YORK—Dinosaurs were in decline long before an asteroid strike polished them off about 66 million years ago, a study says.

It’s the latest contribution to a long-running debate: did the asteroid reverse the fortune of a thriving group of animals?

Or were dinosaurs already struggling—and the disruptive effects of the asteroid pushed them over the edge to extinction?