The Sinestro Corps, occasionally known as the Yellow Lantern Corps, is a supervillainous group and analog to the Green Lantern Corps in the DC Universe. They are led by Sinestro, and derive power from the emotional electromagnetic spectrum of fear.
Cover to Green Lantern vol. 4 #21. Art by Ivan Reis.
The Sinestro Corps gathers on Qward.
Prominent members of the Corps, including (clockwise from top left): the Cyborg Superman (Hank Henshaw), Superman-Prime, the Anti-Monitor, Parallax (Kyle Rayner), and Sinestro. Art by Ethan Van Sciver.
A Yellow Power Ring
The Green Lantern Corps is a fictional intergalactic law enforcement agency and superhero team appearing in comics published by DC Comics. They patrol the farthest reaches of the DC Universe at the behest of the Guardians, a race of immortals residing on the planet Oa. According to DC continuity, the Green Lantern Corps have been in existence for three billion years. Currently operating amongst the 3600 "sectors" of the universe, there are 7204 members. Each Green Lantern is given a power ring, a weapon granting the use of incredible abilities that are directed by the wearer's own willpower.
The Green Lantern Corps. Art by Phil Jimenez (penciler and inks), Tom McCraw (colorist)