25 Smallest Things In The Universe

Posted by , Updated on May 4, 2017

As humans we tend to be obsessed with things that are big. Whether it’s a car, a house, or a bank account it seems that the bigger the better. Today, however, we’re going to take a look at things that aren’t very big at all. In fact, some are so small that they only exist in theory. So, whether it’s a miniature teddy bear or a hypothetical subatomic particle, these are the 25 smallest things in the universe.

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Smallest Gun

Swissminigun world's smallest gun

The SwissMiniGun is no bigger than a key but is capable of firing tiny bullets at over 270mph. That’s more than enough to kill at close range.


Smallest Bodybuilder

Aditya "Romeo" Dev smallest bodybuilder

Standing at just 2 ft 9 in. Aditya “Romeo” Dev of India is the world’s smallest bodybuilder according to the Guinness Book of World Records.


Smallest Lizard

25 Smallest Things In The Universe

Also known as the dwarf lizard, the Jaragua Sphaero is the world’s smallest lizard and is typically found in Jaragua National Park in the Dominican Republic.


Smallest Car

Peel 50 smallest car

Weighing only 150 lbs the Peel 50 is the smallest car ever approved for street use.


Smallest Horse

Einstein smallest horse

Weighing less than a newborn, Einstein is the world’s smallest horse that isn’t affected by dwarfism.


Smallest School

Kalou school smallest in world

Labeled by UNESCO as the smallest school in the world, Kalou School in Iran has a total population of 4 not including soldier turned teacher Abdol-Mohammad Sherani.


Smallest Teapot

Smallest teapot

Created Wu Ruishen the smallest teapot in the world weighs in at only 1.4 grams.


Smallest Prison

Sark Prison world's smallest

Sark Prison, found on the Channel Islands was built in 1856 and only had room for 2 prisoners which sometimes made for some extremely crowded conditions.


Smallest Monkey

pygmy marmoset smallest monkey

Native to the tropical rain forests of South America, the pygmy marmoset tops out at a weight of only 4 ounces.


Smallest Postal Service

Smallest postal service

Abbreviated WSPS, the World’s Smallest Postal Service in San Francisco transcribes your mail into a miniature version before sending it.


Smallest Poisonous Frog

Smallest poisonous frog

The Poison Dart Frog is the most poisonous amphibian on the planet and can only be found on the western slopes of the Andes Mountains in Ecuador.


Smallest House

Smallest house

Named Tumbleweed, the smallest house in the world was constructed by Jay Shafer of San Franciso and is smaller than some people’s closets.


Smallest Dog

Smallest dog

Weighing in at only 1 pound and barely bigger than a coke can, Tiny Pinnochio is considered to be the world’s smallest dog.


Smallest Park

Smallest park Mill Ends

Mills End Park in Portland, Oregon is the world’s smallest park at barely 2 feet across. Don’t let that fool you though. It comes complete with a swimming pool for butterflies, a miniature ferris wheel, and statues.


Smallest Fish

Smallest fish

Recently discovered in an acidic Indonesian peat swamp, females of the Paedocypris progenetica, a member of the carp family, only grow to be 7.9 mm long.


Smallest Man

Edward Nino Hernandez smallest man

Measuring in at 27 inches, Edward Nino Hernandez of Colombia has been certified by theGuinness Book of World Records as the world’s smallest man.


Smallest Police Station

World's smallest police station

Essentially nothing more than a phone booth, the town of Carrabelle, Florida lays claim to what used to be the world’s smallest functioning police station.


Smallest Baby

Amelia Taylor world's smallest baby

In 2006 Amillia Taylor was born as the world’s smallest premature baby after only 22 weeks of development. She was 10 ounces and 9.5 inches long.


Smallest Artwork

Smallest artwork Willard Wigan

Suffering from dyslexia and other learning disabilities, Willard Wigan never excelled in school but found solace in creating miniscule artwork that could barely be seen by the naked eye.


Smallest Teddy Bear

Smallest teddy bear

Created by German artist Bettina Kaminski this teddy bear is only 5mm tall.


Smallest Living Organism

Mycoplasma Genitalium

The parasitic bacterium Mycoplasma Genitalium that inhabits the genital and respiratory tracts of primates is widely considered by scientists to be the smallest organism capable of independent growth and reproduction.


Smallest Non-Living Organism

Porcine-circovirus smallest virus

Although there is still some debate about what is considered “alive” and what isn’t, most biologists would not classify a virus as a living organism due to the fact that it cannot reproduce or metabolize by itself. A virus, however, can get much smaller than any living organism including the bacterium we just saw. The smallest is the single stranded DNA virus Porcine circovirus you see here. It is only 17 nanometers across.


Smallest Thing Visible to the Naked Eye

Smallest thing visible to the naked eye

The smallest objects visible to the unaided human eye are roughly .1mm long. This means that under the right conditions you would be able to see an ameoba proteus, a paramecium, and even a human egg.


Smallest Observed Object in the Universe

Smallest Observed Object in the Universe

Over the last century science has made both great strides into understanding the vastness of space and its microscopic building blocks. When it comes to figuring what the smallest observable particle in the universe is, however, we run up against a bit of a wall. At one point we thought they it was the atom. Then scientists discovered the proton, neutron, and electron. It didn’t stop there though. Today we know (by smashing particles together in places like the Large Hadron Collider) that these can be further broken down into even more particles like quarks, leptons, and even antimatter. The issue with trying to figure out which is smaller is that on a quantum level size becomes a bit irrelevant as the rules of physics you are used to living by begin to break down (some particles have no mass, some even have negative mass) Unfortunately, trying to answer this question is something like dividing by zero…not really possible.


Smallest Hypothetical Object in the Universe

String theory

Keeping in mind what we just said about the idea of size being irrelevant on a quantum level, there exists something known as string theory and although it is slightly controversial it proposes that all subatomic particles are composed of vibrating strings that interact in order to create things like mass and energy. So, although these strings would technically have no physical dimensions, according to our puny human ability to reason one could say that these strings would be in some sense the “smallest” objects in the universe.

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