Astronomy - September 2015

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EVERYTHING YOU NEED TO KNOW ABOUT THE UNIVERSE THIS MONTH...

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Part-time


believers not


needed
Why do so many people believe in a
blend of science and science fiction?

I’ve been fascinated by the landscape
of social media posts lately. Astronomy
enthusiasts are a smart bunch, but even
many of those who are experienced in the
details of the science seem to believe in a
blend of science and science fiction.
“Why couldn’t we travel across the
galaxy?” (Answer: Maybe we could, but
the evidence — laws of matter and mass
and relativity and gravitation — suggests
it would be difficult, if not impossible,
regardless of technological advances.)
“Why can’t you travel through black
holes?” (Answer: They would shred you
into a string — stellar black holes at least
— and therefore the whole travel idea
becomes irrelevant.)
This amalgam of science and science
fiction that dominates so many people’s
minds intrigues me. To many, what is
perceived as science is really corrupted by
wishful thinking.
In reality, you either believe in the prin-
ciples of science or you don’t. Science is a
long, slowly developing process of discov-
ery that sharpens our knowledge of how
the universe works. You either buy into it
and are a scientific thinker, or you are not.
Science doesn’t work with part-time
believers. — David J. Eicher

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SPACE-TIME FOAM
NASA’s high-energy
telescopes tested space-
time’s “foaminess.” It is
smooth down to 1,
times smaller than a
hydrogen atom nucleus.

FAT BLACK HOLES
The Chandra X-ray
Observatory saw black
holes consume gas so
rapidly that the sur-
rounding disk puffed up
into a doughnut shape.

ALIEN WEATHER
Kepler data revealed
cloudy mornings or hot,
clear afternoons on six of
14 exoplanets astrono-
mers studied — in other
words, weather.

The unusual reflection nebula van den Bergh 142 lies within the larger cloud of emission nebulosity IC 1396 in Cepheus.

TONY HALLAS (VAN DEN BERGH 142); NASA/CXC/M. WEISS (SPACE-TIME FOAM, FAT BLACK HOLES); LISA ESTEVES/UNIVERSITY OF TORONTO (ALIE

N WEATHER)
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