Thor’s Hammer Is Not That Heavy (But It Is Scientifically Interesting) (2024)

February 15, 2013Matt Shipman 2-min. read

Thor’s Hammer Is Not That Heavy (But It Is Scientifically Interesting) (1)

In early February, astrophysicist Neil deGrasse Tyson said on Twitter that the superhero Thor’s Hammer (aka Mjolnir) “weighs as much as a herd of 300 billion elephants.” News outlets pounced on this, and the news was quickly circulating online. Sadly, Tyson was wrong.

Tyson’s reasoning was based on the idea that Mjolnir was “made of neutron-star matter.” Not so fast.

Thor’s Hammer Is Not That Heavy (But It Is Scientifically Interesting) (2)

“The critical mistake Tyson makes is thinking that Mjolnir was forged of the core of a dying star, when it was actually forged in the core of a dying star,” says Suveen Mathaudhu, a program manager in the materials science division of the U.S. Army Research Office, adjunct materials science professor at NCState and die-hard comics enthusiast. “It’s well documented that the hammer is made out of ‘Uru,’ a fictional metal from Thor’s native realm of Asgard.”

And Mathaudhu can cite documentary sources to back him up. For example, Marvel – which publishes the Thor comics – issued a “Thor’s Hammer” trading card in 1991 that states Mjolnir is made of Uru and weighs precisely 42.3 pounds. That’s lighter than a herd of 300 billion mice, much less a herd of 300 billion elephants. But it raises a different science question.

Using the dimensions and weight on Marvel’s trading card, Mathaudhu estimates that the density of Mjolnir is about 2.13 grams (g) per cubic centimeter (cc). That makes it even lighter than aluminum, which has a density of 2.71 g/cc. So what could possibly be that light and strong?

Mathaudhu has a theory.

“Perhaps Uru is the ‘holy grail’ of high-pressure physics: a form of metallic hydrogen,” Mathaudhu says. “Some predictions of the density of metallic hydrogen fall into this range, it requires extreme conditions to form, and could be a tremendous energy source. It’s thought to be present at the core of planets, such as Jupiter, and at the core of suns – which are stars, after all.”

While Tyson made a mistake in calculating the weight of Thor’s hammer, he succeeded in drawing attention to the sciences of astrophysics and materials science – which is a good thing. For more discussion of Thor, Mjolnir and physics, check out this interesting post on Scientific American’s site about momentum and how Thor can fly.

Thor’s Hammer Is Not That Heavy (But It Is Scientifically Interesting) (2024)

FAQs

How heavy is Thor's hammer scientifically? ›

And Mathaudhu can cite documentary sources to back him up. For example, Marvel – which publishes the Thor comics – issued a “Thor's Hammer” trading card in 1991 that states Mjolnir is made of Uru and weighs precisely 42.3 pounds. That's lighter than a herd of 300 billion mice, much less a herd of 300 billion elephants.

How heavy is Thor's hammer if you're not worthy? ›

Someone who is NOT worthy couldn't lift Mjolnir no matter if it weighed 42.3 pounds, or 4.23 ounces.

What is special about Thor's hammer? ›

The hammer can summon the elements wind, rain, thunder, and lightning for the wielder to use at their discretion. It is able to open interdimensional portals, such as the one to Asgard. Mjolnir possessed the power to bestow the ability of time travel to its wielder until Immortus removed it.

Why can't Hulk lift Thor's hammer? ›

The fact is that Thors hammer Mjolnir is enchanted. It has nothing to do with strength. This is magic at work and magic will always trump brute strength however huge. This is the closest the Hulk has come to weilding Mjolnir.

Can Saitama lift Mjolnir? ›

The point of Mjolnir is that it can only be lifted if its wielder is “worthy”. In reality the hammer only weighs around 40 pounds which most adults should be capable of lifting. All in all it really depends if Saitama is worthy but if you remove the spell then Saitama could easily lift Mjolnir.

Can Hulk pick up Thor's hammer? ›

Nope. Lifting Thor's hammer has nothing to do with physical strength, but whether someone is worthy. Thor, like Hulk, is ridiculously strong and even he was unable to lift the hammer when he became “unworthy”.

Why can Captain America lift Thor's hammer? ›

It is the enchantment that Odin placed upon it. Captain America is a master martial artist, and a weapons expert. And once he held Mjolnir and was deemed worthy, he also had the power of Thor. That's why he was able to shoot a lightning bolt out of it, he was essentially a less strong Thor.

Can Ultron lift Mjolnir? ›

A machine can pick up the weapon and move it anywhere since it's mindless and incapable of possessing the morals necessary to be considered worthy. By this logic, Ultron himself could have lifted it, but it wouldn't have done him much good.

Has anyone unworthy lifted Thor's hammer? ›

Thor has his mighty hammer, Mjolnir, but those who are NOT worthy have certainly lifted the hammer before. Here are a few. Only those who are worthy may lift Mjolnir, the mighty hammer of Thor, God of Thunder. However, worth has little to do with actual morality.

How weak is Thor without his hammer? ›

True, some of his more exotic powers – such as weather control and flight – are dulled or even denied him when he can't use his hammer to focus them, but he doesn't seem to lose any appreciable strength or durability when he doesn't have his hammer.

How much can Hulk lift? ›

UNLIMITED STRENGTH

The answer; there isn't one. The amazing thing about the Hulk is that unlike nearly every other superhero ever created, the Hulk's strength has absolutely no upper limit. He can lift a commercial airplane – which weighs around 100 tons – when he is at his calmest; that's no problem for him.

Is there a 7th Infinity Stone? ›

Spoilers for Thanos: Death Notes #1 and Thor #29 by Marvel ComicsMarvel Comics has officially introduced the Seventh Infinity Stone, as the new Black Infinity Stone has a special connection to Thor.

Can Thanos lift Thor's hammer? ›

Many viewers have pointed out that Thanos was able to lift Stormbreaker without a problem, but this is because the ax isn't enchanted as Mjolnir is. Others believe Thanos lifted Mjolnir (although briefly) and have even argued that he would be worthy of doing so.

Why was Vision so weak? ›

Since Vision was caught off-guard, he didn't have time to phase through the blade, and his synthezoid body began to malfunction. After Corvus Glaive's attack, Vision couldn't use his powers and remained badly wounded for the rest of the movie, which gave Thanos and the Black Order more freedom to confront the Avengers.

How much do 300000000 elephants weigh? ›

According to Wikipedia, African elephants weigh 8,800-15,000 pounds. Let's split the difference and say 11,900 pounds. Multiply that by 300 billion and we get 3.57 quadrillion pounds.

What is the heaviest thing Thor can lift? ›

Notably, many of Thor's greatest feats have to do with lifting or throwing entire planets out of orbit (or objects that weigh as much as planets). He lifted the World Serpent – a creature weighing trillions of tons, using only his strength and a magic fishing rod.

What is Thor's official weight? ›

Thor OdinsonThor. The son of Odin uses his mighty abilities as the God of Thunder to protect his home Asgard and planet Earth alike. Thor: 640 lbs., Donald Blake: 150 lbs.

Is Thor's Hammer heavy or magic? ›

On Earth-961212, Mjolnir itself, is not magical, but the blows it strikes are. Giant in nature, few can lift it purely because of the weight.

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