Marvel is known for their roster of respected heroes protecting the Earth, but if the comics only had humans in them, it wouldn't be a Marvel Universe. Over the years, many aliens have been introduced to Marvel's heroes, whether as friends or foes. These aliens have proven to be just as brave as any of Earth's defenders, as the depths of space in the Marvel Universe are full of great dangers.

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These intrepid alien heroes and vile extraterrestrial villains are among the bravest beings in the Marvel Universe. These beings survived things that few humans could imagine and have more than proven their wherewithal.

10 Galactus Will Brave Anything For Sustenance

Galactus Silver Surfer Parable 1

There are some who believe that power can take the place of bravery but this isn't true. Look at Galactus. He's one of the most powerful beings in creation but his desire for sustenance means he will brave any danger to feed. Galactus knows that in order for him to survive, the universe has to keep existing, so he's thrown himself at some of the most powerful foes when needed.

Galactus has faced down Thanos with the Infinity Gauntlet, the Magus, and other cosmic horrors in order to ensure the survival of the universe and everything in it, even if it's only so that he can have something to feed on.

9 The Starjammers Are Some Of The Coolest Pirates In The Universe

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The Shi'Ar Empire is a massive place, full of many different races under the rule of the Shi'Ar people. The Empire isn't always the most benevolent, which is why the Starjammers were born. Fighting against the evil Shi'Ar Emperor D'Ken and led by Cyclops's father Corsair, the team helped the X-Men wrest the throne from the mad Emperor and win it for Empress Lilandra.

Since then, the Starjammers have traveled the length and breadth of the universe, fighting against the rich and evil to help those who are oppressed. They've always thrown themselves into conflict with those in power with little more than their one ship, their weapons, and their bravery.

8 Deathbird Fought For The Shi'Ar Throne For Years

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D'Ken had two sisters, Cal'syee and Lilandra. Cal'syee was more like her brother and became known as Deathbird, a rival for her sister's throne. She battled against her sister, the X-Men, and the Shi'Ar Imperial Guard constantly, trying to prove that the throne belonged to her. She's also helped the X-Men battle the Phalanx when they invaded the Empire and has since helped her niece Xandra acclimate to the throne.

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Deathbird rushes into any fight she believes in, even if the odds are totally against her. She has no fear whatsoever and anyone who makes an enemy of her should beware.

7 The Imperial Guard Has Faced The Most Deadly Threats To The Shi'Ar Empire

The Shi'ar Imperial Guard from Marvel comics

The Shi'Ar Empire has survived everything thrown at it and the main reason for that is the Imperial Guard. Each member of the team, except for Gladiator, trains for years before taking up their mantle and they are some of the most powerful and skilled beings in the entire Empire. Be it enemy empires like the Kree, Phoenix Force hosts, or the X-Men, the Guard takes on all comers.

The Imperial Guard is a potent body and follows the Empire's ruler's orders without question. They would fly into a star if they were told it would save the Shi'Ar Empire, not hesitating for a moment in doing their duty.

6 Annihilus Survived The Horrors Of The Negative Zone To Become Its Greatest Predator

Marvel Comics Annihilus

Annihilus is one of the most dangerous beings in the Marvel Universe. He's the master of the Annihilation Wave and the bearer of the Cosmic Control Rod. He came of age in the Negative Zone, one of the most dangerous places in all of creation, and survived unknowable terrors in order to become the Zone's apex predator.

Since then, he's stopped at nothing to devour all in his path. His bravery is undeniable even if his aims are terrible and twisted. He's a monster like few others, existing only to gorge on the weak and control the strong.

5 Gamora Is The Most Dangerous Woman In The Universe

Gamora

Gamora has earned a fearsome reputation over the years. Thanos, her adoptive father, honed her into the most powerful weapon in the universe, one he could set at his enemies and ensure their destruction. Gamora broke away from Thanos eventually and devoted herself to being a force for good in the universe, unlike what Thanos wanted for her.

Gamora has fought alongside the first Captain Marvel, Adam Warlock, and the Infinity Watch, and the Guardians of the Galaxy, facing down the most dangerous threats in the cosmos.

4 Carol Danvers May Have Been Born On Earth But She's Part Kree

Captain Marvel Carol

Carol Danvers is one of the most powerful Captain Marvels of all time. Throughout her time as Ms. Marvel, sidekick to the first Captain Marvel, it was thought she was human. It was later revealed that she was Kree, just like her mentor, which is where her powers came from. As a member of the Avengers, whether she was called Ms. Marvel or Captain Marvel, she proved how brave she could be.

Carol Danvers has fought against some of the most powerful enemies on Earth and beyond. Her life has been full of trials and tribulations, yet she keeps fighting the good fight and becoming a greater and greater hero.

3 Thanos Has Faced Down Some Of The Oldest & Most Powerful Beings In Existence

Thanos taking the throne in Eternals issue 7

Thanos is one of the greatest villains in the Marvel Universe but that doesn't change just how brave he is. Take when he got the Infinity Gauntlet. He had to wrest each individual Infinity Gem from the Elders of the Universe, extremely powerful beings who all had something they could do better than him. He's faced down the greatest forces in the universe without flinching and fell in love with Death herself.

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Thanos is completely without fear. While his methods and goals are usually the worst things imaginable, one can't deny that he is a brave being. Nothing daunts him and anything that stands between him and his goals is going to have to kill him to stop him.

2 Mar-Vell Defied His Own People To Become One Of Earth's Greatest Heroes

Captan Mar-Vell flying through space from Marvel Comics

Mar-Vell first came to Earth to scout the planet out for the Kree Empire but found much to love about the world and its people. Instead of helping his people take over, he fought against them and became Captain Marvel, the first cosmic hero of a new age. Mar-Vell helped the Avengers against the Kree and the Skrull and battled against Thanos every chance he got.

Mar-Vell created the mantle of Captain Marvel and never stopped defending the weak. He was an inspiration to everyone he met and one of the greatest heroes of all time, even brave in the face of death, as cancer consumed him.

1 Silver Surfer Will Face Any Danger To Protect The Innocent

Silver Surfer 1998 Fantastic Four Marvel Comics

Silver Surfer is one of the most powerful beings in the Marvel Universe. Given the Power Cosmic when he became Herald of Galactus, he broke away from his master and became one of the greatest heroes in the universe. He believes wholeheartedly in protecting the innocent, braving any challenge in order to keep the universe safe.

Silver Surfer has battled the likes of Thanos, Mephisto, Galactus, and so much more in his mission to protect those who can't protect themselves. He's battled against the most fearsome things imaginable with no fear whatsoever.

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