WWW.ASTRONOMY.COM 3
16 COVER STORY
The very hungry universe
When it comes to
understanding the formation
of galaxies, solar systems,
or planets, accretion is
what brings it all together.
ARWEN RIMMER
24
Exoplanets: How we
discovered other worlds
Th e fi eld of exoplanets has
sprung up nearly overnight.
What does the wealth of new
discoveries tell us about the
worlds circling our own Sun?
BRIAN MAY, PATRICK MOORE,
CHRIS LINTOTT, AND
HANNAH WAKEFORD
32
Sky This Month
A planetary extravaganza.
MARTIN RATCLIFFE
AND ALISTER LING
34
Star Dome and
Paths of the Planets
RICHARD TALCOTT;
ILLUSTRATIONS BY ROEN KELLY
40
Mapping the Moon
While most of us will never
set foot on the Moon, maps
can transport us there.
RAYMOND SHUBINSKI
46
First scopes for adults
If you’re new to observing,
you don’t need to buy the
best telescope — just the
one you’ll use the most.
PHIL HARRINGTON
52
Zero in on a hero
Star clusters and galaxies
will keep you looking at
Hercules all night long.
MICHAEL E. BAKICH
54
The CMOS
revolution is here
A new type of camera
may signal the future of
astroimaging. TONY HALLAS
62
Ask Astro
When black holes collide.
IN EVERY ISSUE
From the Editor 4
Astro Letters 6
New Products 61
Advertiser Index 61
Reader Gallery 64
Breakthrough 66
FEATURES
JUNE 2022
VOL. 50, NO. 6
Astronomy (ISSN 0091-6358, USPS 531-350)
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QUANTUM GRAVITY
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other galactic news.
COLUMNS
Strange Universe 12
BOB BERMAN
Binocular Universe 14
PHIL HARRINGTON
Observing Basics 15
GLENN CHAPLE
Secret Sky 60
STEPHEN JAMES O’MEARA
ON THE COVER
Material from an accretion disk
swirls around the young star
FU Orionis in this artist’s concept.
NASA/JPL-CALTECH
Picture of
the Day
Gorgeous
photos from
our readers.
Sky This
Week
A daily digest
of celestial
events.
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