[NEWS] Five science links: oceans, global warming, stars, Milky Way Galaxy, Sagittarius A*

[rfmcdonald]

• CBC notes that a cold-water reef off of Cape Breton ravaged by fishing is showing signs of recovery.


• Motherboard reports a study suggesting that the oceans have absorbed much more heat than previously thought, suggesting the margins to avoid climate change are thinner than imagined.


• Paul M. Sutter at Universe Today notes how scarily large and massive blue giant stars can unlock key mysteries about stellar evolution.


• Motherboard notes the latest, strong evidence for Sagittarius A* at the heart of the Milky Way Galaxy actually being a black hole.


• Phys.org notes a new study suggesting that the inner core of the Milky Way Galaxy was formed by an ancient collision with a dwarf galaxy 10 billion years ago.