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Mind-Blowing Facts About Space That Sound Made Up, But Are Totally 100% Real

Updated March 8, 2021 1.6k votes 270 voters 12.9k views16 items

List RulesVote up the space facts you're most likely to tell someone else just so you can sound like a smartypants.

Space is super weird. It smells funny, it’s full of odd shapes, and it’s much more gross than you could have ever imagined. There are so many surprising facts about outer space that just seem made up, like the fact that it smells like raspberries, or that Saturn’s rings disappear. As weird as that space trivia sounds, it’s 100% true. Historical theories about space are absolutely bonkers, but as bananas as they sound, they’re not far off from some of the surprising space facts that you’ll find on this round up of super weird ephemera about the solar system.

Outer space is super creepy. It’s an empty expanse of dust, gaseous beings, and dead satellites floating in their own graveyards. You may find many of the following space facts to be awe inspiring, but there are a few pieces of knowledge on here that will definitely make you change your mind about booking a ticket to Mars any time soon. Unless you like the idea of midnight ice bursts and the possibility of suffocating in your sleep.

  • Photo: YouTube

    If Two Pieces of The Same Type Of Metal Touch In Space, They'll Be Permanently Welded Together

    It's rare that something is so weird, terrifying, and cool at the same time, but the concept of cold welding manages to be one of the most confounding things about space. Cold welding, also know as contact welding, occurs in vacuums when the atoms of different items touch and because the atoms don't realize that they belong to different pieces of metal, they actually stick together forever. You can technically accomplish this on earth, but you would need to construct a vacuum with a super clean room and use tools coated to prevent them from sticking to whatever you're working on.

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  • Photo: YouTube

    The Apollo Astronauts' Footprints Will Stay On The Moon For At Least 100 Million Years

    Neil Armstrong and Buzz Aldrin made quite the impression on the moon when they took their first steps across its gentle white face. You've probably seen photos of their footprints crunched into the moon's surface and thought, "What's the big deal?"

    Unlike footprints on Earth that are eventually done away with by wind, rain, and general erosion, the Apollo 11 footprints will be there for millions of years. There's no wind on the moon to blow the footprints away, and the lack of an atmosphere means that all of the water on the moon is ice. Those footprints are there to stay until the moon explodes or a meteor smashes into its surface. 

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  • Photo: Kevin M. Gill / flickr / CC-BY 2.0

    It Snows On Mars

    As you know, Mars is a big red planet with a very thin atmosphere that's mostly made up of iron. It's not the kind of place where you expect to find snow drifting through the sky. However, in 2008, NASA's Phoenix Mars Lander discovered heavy precipitation in the atmosphere of the red planet. The incredibly cold nighttime temperatures on the planet cause an instability in the atmosphere cause small, localized, ice bursts that are similar to heavy bouts of snowfall. Researchers wrote, "In our simulations, convective snowstorms occur only during the Martian night, and result from atmospheric instability due to radiative cooling of water-ice cloud particles.”


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  • Photo: NapaneeGal / flickr / CC-BY-NC 2.0

    99% Of Our Solar System’s Mass Is The Sun

    Defining the weight of the solar system, a complex and amorphous expanse of matter, is almost impossible. Planets, moons, and stars aren't weighed by their weight, but instead their weight is determined by their gravitational force. For instance, the Earth weighs 5.972 x 10^24 kg. That's a lot of kilograms! But it's still nowhere near as close as the sun, which makes up 99% of all the mass in the Solar System. The core of the sun is a dense collection made up of hydrogen, helium, carbon, nitrogen, and oxygen all swirling together in one massive nuclear fusion


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