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Space

Submission + - Edge of Space Found (space.com)

sean_nestor writes: "Hold on to your hats, or in this case, your helmets: Scientists have finally pinpointed the so-called edge of space — the boundary between Earth's atmosphere and outer space. With data from a new instrument developed by scientists at the University of Calgary, scientists confirmed that space begins 73 miles (118 kilometers) above Earth's surface. A lot remains very fuzzy, however, as the boundary is surrounded by a host of misconceptions and confusing, conflicting definitions. For starters, astronauts can say they've been to space after only passing the 50-mile (80-kilometer) mark."
Math

Submission + - Is Time Disappearing From the Universe? (dailygalaxy.com)

dynamo52 writes: Professor Jose Senovilla, and his colleagues at the University of the Basque Country in Bilbao, Spain, have proposed a mind-bending alternative [to the theory of dark energy]."

From the article: "...to this day no one actually knows what dark energy is, or where it comes from. They propose that there is no such thing as dark energy at all, and we're looking at things backwards." "Senovilla proposes that we have been fooled into thinking the expansion of the universe is accelerating, when in reality, time itself is slowing down."

"...the appearance of acceleration is caused by time itself gradually slowing down, like a clock with a run-down battery.

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