Name: Eclipso
Universe: Earth-1
Alter Ego: Dr. Bruce Gordon
Occupation: Physicist
Marital Status: Single
Group Affiliation: None
Base of Operations: Mobile, most recently, Los Angeles, California
Known Relatives: None
Height: 6 ft. 1 in.
Weight: 195 lbs.
Hair Color: Blond
Eye Color: Blue
First Appearance: House of Secrets #61

History:
While on the island of Diablo in the South Pacific to film a solar eclipse, Dr. Bruce Gordon was confronted by a local seer named Mophir, who attempted to kill Gordon for defying local customs. Lunging at Gordon with dagger upraised, Mophir managed only to cut Gordon with the strange black diamond clutched in his other hand before the sheer momentum of Mophir’s charge carried him over a cliff to his doom. Grateful to be free of Mophir’s tyranny, the island’s natives gave Gordon Mophir’s costume and black diamond.

Months later, as Gordon was about to dedicate Solar City, the crowning acheivement of his career, a second solar eclipse occurred in theSouth Pacific and Gordon found himself transformed into someone else, a being of awesome power and awesome evil who called himself Eclipso! Wielding the black diamond as a weapon, Eclipso destroyed Solar City before a blinding burst of light transformed him back into Bruce Gordon.

Recovering from his shock, Gordon deduced that his body, cut by the mysterious black diamond, had somehow been affected by the emanations from the first solar eclipse and that the second eclipse had triggered his transformation.

For the next several months, Gordon found that any eclipse, real or artificial, would change him into Eclipso, who would wreak all sorts of havoc that Gordon would later have to repair. Ultimately, Gordon developed an ultraviolet ray gun that he hoped would turn Eclipso from evil to good. Instead, it somehow affected Gordon’s body, splitting him and Eclipso into two separate beings. Now able to confront his evil alter ego, Gordon became Eclipso’s most relentless foe, thwarting the fiend repeatedly until he could use a blinding flash of light to return Eclipso to his body.

For a while, Bruce Gordon was employed by Ferris Aircraft, developing his own solar-powered aircraft. This led to several confrontations between Eclipso and the Emerald Crusader called Green Lantern. At the end of their latest conflict, Eclipso was apparently destroyed by a high-intensity laser beam of his own devising, and Bruce Gordon left Ferris to seek his future elsewhere.

Powers:
A superhumanly powerful and savage hand-to-hand combatant, Eclipso’s greatest weapon is his black diamond, actually some sort of alien meteorite. Held to his eclipsed eye, it fires a frigid beam of impenetrable black light; held to his uneclipsed eye, it projects a beam of destructive laser-like light.

While any sort of eclipse, solar, lunar, etc., can free Eclipso from Bruce Gordon’s body, only a burst of bright light will return him to Gordon’s body. For a time, an artificial eclipse would only change Gordon into Eclipso, not separate the two, but that seems no longer applicable.