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Wednesday, March 6, 2019

March 6 - Quiet Black Hole Found

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Black hole found near Milky Way's heart
It's not supermassive, but only an intermediate-mass black hole, near the center of the Milky Way. It might be one of over 100 million quiet black holes lurking unseen in our galaxy. Read more.
Ospreys’ recovery is global conservation success story
Chemical pollution and hunting pushed ospreys - which are large, hawk-like birds - to the edge of extinction. Now they've rebounded and can be spotted worldwide, often nesting on human-made structures. Read more.
Alphard is the Snake's Heart
The star Alphard - Heart of the Snake in constellation Hydra - is ascending in the east in the evening now, a sign of spring coming. Read more.
What we're reading

Tyrannosaurus rex: Once and future king
From the New York Times: "Tyrannosaurus rex is still the biggest, baddest land predator of all time. It was the size of a city bus, with a head almost as long as Tom Cruise is tall and a smile every bit as devastating. Scientists are just as smitten as the rest of us." Read more.

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Tonight … Summer Triangle, signpost for all seasons
The Summer Triangle's 3 brilliant stars - Vega, Deneb and Altair - are up before dawn in March, before midnight in May and at dusk on the summer solstice. Right now, they're in the east before sunup, near Venus! Read more.
One of the last Iridium flares
Only a few of the original, sometimes-glinting Iridium satellites are still in low Earth orbit. They have 3 reflective panels that occasionally catch the sun and produce a visible flare lasting between 5 and 20 seconds. Michael Holland Sr. caught this one from Lakeland, Florida, on February 25.
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