EARTH
CHANGE
The world’s best-selling astronomy magazine
APRIL 2018Vol. 46- Issue 4
Secrets of nightscape
photography p. 50
Have exploding stars altered human evolution? p. 44
Travel along to see
Chile’s greatest
telescopes p. 28^
Binoculars
made for the
night sky p. 64^
PLUS
Spring’s best
and brightest
galaxies p. 59
EXTINCTION
may come from the
galaxy’s disk p. 22
COULD
MATTER
DARK
HOW
EXCLUSIVE
BONUS
ONLINE
CONTENT
CODE p. 4