Real Name: Robert L. Hunter
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Nitro can explode with the force of 260 lbs. of TNT and reconstitute his body afterwards.
At one point, he was taking Mutant Growth Hormone, which enhanced his explosive power.
Robert Hunter was an retired electrical engineer who operated a ham radio as a hobby before the Lunatic Legion, a group of rebel Kree who had been monitoring his broadcasts, chose him to become their agent. The Legion took him to a hidden genetics laboratory and genetically altered his body, endowing him with the ability to explode his body's molecules and reassemble them at will. Dubbing him Nitro, they sent him to acquire Compound Thirteen, a dangerous nerve gas being developed by the U. S. Army. This led him into a direct confrontation with Captain Mar-Vell, in which he was defeated and left in a gaseous state.
After months of effort, Nitro reintegrated himself and searched for Mar-Vell in order to gain retribution. While searching for Mar-Vell, Nitro mistook the alien Omega for his enemy, and attacked him, but was defeated by Omega when a titanium steel cylinder was placed around Nitro as he exploded, causing him to be rocketed into the stratosphere.
Later, Nitro again reintegrated, and lured Mar-Vell into battle. Mar-Vell subdued him once again by capturing half of Nitro (while in his gaseous state) in a container, preventing him from physically reintegrating. This container, and a second filled with the other half of Nitro's gaseous substance, was taken to the government energy facility Project: Pegasus for study. He was later released when his daughter Virginia acquired a court order in order to permit him to stand trial. Once both of the substances were recombined, he escaped and wreaked havoc in Manhattan until Spider-Man trapped him in a container partly filled with a nausea gas. Nitro later escaped once again to resume his criminal career.
Shortly after escaping, Nitro accepted a contract from the Mandarin to battle Iron Man, but was again defeated. During the battle Iron Man detected the emission of a certain frequency before each explosion, and quickly deduced that it was what caused Nitro to explode at will. He duplicated the signal, weakened Nitro by repeated explosions which in turn knocked him out. Iron Man gave him over to S.H.I.E.L.D.. who again placed Nitro into custody, eventually ending up at the super villain facility at Ryker's Island prison. He was among the many criminals to escape during a massive super villain breakout on Ryker's Island.
He was located in Stamford, Connecticut during a televised raid of a house containing him, the Cobalt Man, Speedfreek, and Coldheart. During the battle Nitro was attacked by Namorita. After being slammed into a bus, and continuously taunted by Namorita, he let off a massive explosion that killed three of The New Warriors, his supervillain cohorts, the children at a nearby elementary school, and the residents of the surrounding neighborhood. He escaped before the aftermath was picked up by various superhero teams, and became hunted by Wolverine and SHIELD. In the wake of the tragedy, Capitol Hill proposed the Super Hero Registration Act, requiring all costumed heroes to unmask themselves before the government and subject themselves to federally mandated standards.
Nitro escaped in the back of a pickup truck, and Wolverine soon began hunting him. Eventually Wolverine and a group of S.H.I.E.L.D. agents caught up with Nitro. The agents perished in the battle. Wolverine discovers Nitro's powers work less efficently on those in close proximity. Atlantean agents show up and capture Nitro for Namor.
Wolverine travels to New Pangea in Iron Man's armor. Nitro has killed his interrogators. Wolverine slices off Nitro's arm and leaves him as Namor's prisoner. It has been indicated the fictional nation of Latveria, ruled by Doctor Doom is where Nitro is now being held.
At the time of the Stamford, CT incident, Nitro had been taking Mutant Growth Hormone, which enhanced his explosive power. This is why the explosion was so devastating.
First Appearance: Captain Marvel (1968) #34
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View a chronological listing of this character's appearances
All-New Official Handbook of the Marvel Universe A to Z: Update (2007)
Avengers Academy (2010)
Avengers Standoff: Assault on Pleasant Hill Alpha (2016)
#2 Captain America: Steve Rogers (2016)
- 'Creative Hate'#3
- 'Bad Debts'#4
- 'Second Chances'
Captain Marvel (1968)
#34 Civil War (2006)
- 'Blown Away!'#54
- 'The Big Bang Theory'
Civil War Files (2006)
Civil War II: Choosing Sides (2016)
Civil War: Battle Damage Report (2007)
Civil War: Casualties of War (2007)
Civil War: Front Line (2006)
Civil War: The Return (2007)
#1 Cosmic Powers (1994)
- 'Captains Courageous'
#26 Dark Reign Files (2009)
- 'Underboss: Part 1'#27
- 'Underboss: Part 2'
Dark Reign: The Hood (2009)
Heroes for Hire (1997)
#2 House of M: Masters of Evil (2009)
- 'Give & Take'
#1 Iron Man (1998)
- 'This Thing of Ours'#2
- 'Honor Among Thieves'
Iron Man/Captain America: Casualties of War (2007)
Marvel Encyclopedia (2014)
Marvel Graphic Novel (1982)
#1 Marvel Knights: Spider-Man (2013)
- 'The Death of Captain Marvel'
#3 Marvel Team-Up (1972)
- '99 Problems... Three of Five'#4
- '99 Problems... Four of Five'
#113 New Avengers (2010)
- 'The Resurrection of Edward Lansky'
Official Handbook of the Marvel Universe A to Z (2008)
Omega the Unknown (1976)
#8 Penance: Relentless (2007)
- 'A Blast From the Past'
#4 Secret Defenders (1993)
- 'Relentless: Part 4'#5
- 'Relentless: Part 5'
Secret Empire (2017)
Starbrand & Nightmask (2016)
#1 Sub-Mariner (2007)
- 'Eternity's Children [Attend University] Chapter One: Matriculation'#2
- 'Eternity's Children [Attend University] Chapter Two: Orientation'
#1 The Amazing Spider-Man (1963)
- 'Revolution: Chapter 1'#5
- 'Revolution: Chapter 5'#6
- 'Revolution: Chapter 6'
#532 The Marvel Encyclopedia (2006)
- 'The War at Home, Part One of Six'
HC The New Avengers: Most Wanted Files (2006)
- 'The Marvel Encyclopedia'
The New Mutants (1983)
#86 The Official Handbook of the Marvel Universe (1983)
- 'Bang! You're Dead!'
#8 The Official Handbook of the Marvel Universe Deluxe Edition (1985)
- 'N-P: From Namorita to Pyro'
#9 The Official Handbook of the Marvel Universe: Master Edition (1990)
- 'Molecule Man to Owl'
The Spectacular Spider-Man (1976)
What If? Age of Ultron (2014)
#43 Wolverine (2010)
- 'Vendetta, Part 2: Revenge'#44
- 'Vendetta, Part 3: Justice'#45
- 'Vendetta, Part 4: Vengeance'#46
- 'Vendetta, Part 5: Payback'#48
- 'Vendetta - Epilogue: Knocking on Heaven's Door'
Hood's Criminal Syndicate (Marvel)
Lunatic Legion (Marvel)(01 - Cap. Marvel villains)
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