Earth Sentry, also known as John Foster, is a fictional character who appeared in the Marvel Comics' MC2 series A-Next. Marvel Comics is an American comic book line published by Marvel Entertainment, Inc. ... In comic books, first appearance refers to the date or issue of a characters first appearance. ... A-Next is the Marvel Comics MC2 Universe version of the Avengers. ... 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... Tom DeFalco (June 26, 1950 - ) is one of the most prolific and well-known writers and editors in comic publishing today. ... Ron Frenz is an American comic book artist. ... A-Next is the Marvel Comics MC2 Universe version of the Avengers. ... Black Goliath makes his debut (1976). ... A fictional character is any person who appears in a work of fiction. ... Marvel Comics is an American comic book line published by Marvel Entertainment, Inc. ... For the physics equation E=mc², see E=mc² In comic books, MC2 (which stands for Marvel Comics 2) is an alternative timeline for the Marvel Universe. ... A-Next is the Marvel Comics MC2 Universe version of the Avengers. ...

History

John and his father Bill were investigating a UFO crash site, and discovered a Kree space probe. Upon nearing the ship, the automated defenses activated, and a robotic sentry was released. Bill activated a distress signal which was picked up by Mainframe and the rest of A-Next. Upon arrival, the sentry robot attacked the heroes. Thunderstrike's sonic blasts and J2's superstrength were not slowing the attacker down. Stinger was able to blind the robot's optic sensors with sting darts, providing an opening for John to enter the ship and try to turn the sentry off. When he made contact with the ship's console, a strange energy surge ripped through the ship's computers and struck John. The energy wave reconfigured John's DNA, making him genetically similar to a Kree warrior. Finding himself clad in a green-and-white costume, similar to the original costume of Mar-Vell, John discovered that he had great powers. John confronted and defeated the sentry robot, and stated that he would become an "Earth Sentry" to protect his planet from invaders, and politely declined membership with A-Next. UFO can mean: Unidentified flying object United Future Organization, a Japanese-Brazilian electronic jazz band UFO, the rock band that previously featured Michael Schenker UFO, the Gerry Anderson TV series United Farmers of Ontario, a political party that formed the government in Ontario from 1919 to 1923 U.F.O... The Kree, also known as the Ruul, are a scientifically and technologically advanced militaristic alien race in the fictional Marvel Universe. ... Mainframe is a fictional character who appeared in the Marvel Comicss series A-Next. ... Thunderstrike, aka Eric Masterson, is a fictional character in the Marvel Universe. ... J2 (real name Zane Yama) is a fictional character in the Marvel Universe. ... Stature is a fictional character, a superheroine in the Marvel Comics universe. ... Captain Mar-Vell is a fictional character, an alien superhero in the Marvel Comics universe. ...

But when the team was later captured by The Revengers, Earth Sentry returned and used his alien powers to help A-Next defeat the invaders. He then accepted membership with A-Next. The Revengers are a fictional team of supervillains who were formed to fight A-Next in Marvel Comics MC2 series A-Next. ...

Powers

Earth Sentry possesses superhuman strength and durability, due to his altered human/Kree DNA. His costume has wrist-mounted blasters that can fire photonic energy blasts. Rocket boosters on his belt allow him to fly. In quantum physics, the photon (from Greek φως, phōs, meaning light) is the quantum of the electromagnetic field (light). ...