Comic Title: Action Comics #337
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May 1966
On Sale Date: March 31, 1966 Newsstand Date March 31, 1966
Source: Direct Currents, Sea Devils #29, Page 11

Copyright Date March 31, 1966
Source: Library of Congress, Periodicals 1966

Frequency: Monthly (semi-monthly, March)
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Green Sun Supergirl"
Pages: 12

Feature(s):
Supergirl (of Earth-1)

Writer: Otto Binder
Artist: Jim Mooney

Reprinted In:
Superman Family #170 (1975)
Supergirl:The Silver Age Omnibus Vol. 2 HC (2018)

Feature Character(s)

• Supergirl (last appearance in Adventure Comics #342; next appearance in Action Comics #338)

Villain(s)

• The Evil-Eyed People (no further appearances)

Other Character(s)

• Several Stanhope students (Joan named; no further appearances)
• Residents of Lumal and the ant-people (no further appearances)

Synopsis:
Supergirl helps the government test a new space suit. During the mission a warp stream carries her probe to another solar system which has a green sun. Supergirl lands on planet Lumal where she has no super powers. Supergirl befriends the people of Lumal and retrieve the materials necessary to repair her space probe. During her time on Lumal, she helps the people overcome a race of Evil-Eyed People using scientific devices. Once her repairs are complete, Supergirl returns to Earth. The people of Lumal honor her for her good deeds, though they believe she used super powers to accomplish them.