Search:
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
ecosphere (n.)
region around a star where conditions allow life-bearing planets to exist, 1953; see
eco-
+
sphere
. Apparently coined by German-born U.S. physician and space medicine pioneer Hubertus Strughold (1898-1986).