Mind-Blowing Space Facts

The concept of cold welding is weird, terrifying, and cool all at once.Cold welding manages to be one of the strangest things about space. Contact welding, or cold welding, happens in a vacuum. Atoms from different metal pieces touch, and since they don't know they are separate, they stick together.This sticking happens forever.You can technically do this on Earth. You need a vacuum, a super clean room, and tools coated to stop them from sticking to what you touch.Neil Armstrong and Buzz Aldrin made a huge mark on the moon when they first stepped across its white surface. People see photos of their footprints. They think, "What's the big deal?"

Neil Armstrong and Buzz Aldrin made a big impact on the moon with their first steps on the white surface. You see photos of their footprints there and think, "What's the big deal?"

Earth footprints vanish from wind, rain, and erosion. Apollo 11 footprints stay for millions of years. Moon wind does not blow them away.Throw away your childhood space dreams. Astronaut life sounds awful. They must live celibate lives. If you don't pick your sleep spot right, you can suffocate during a nap. Astronauts sleep under fan vents to keep air moving. If they skip this, they risk getting surrounded by a bubble of carbon dioxide.That bubble can choke them. No one at NASA has solved this problem yet.

Have you seen Saturn lately? Then you missed the giant shape decorating the planet's north pole.They actually group around your eyeball."Is the giant swirling hexagon on Saturn a warning from its natives? Do they plan to use it? Is it a portal? Scientists see the hexagon cloud since 1988. It spans 20,000 miles wide and is 60 miles deep. Scientists guess a jet stream air current flows up the hexagon's edges. That is all they know.

Dump your childhood space dreams. Astronaut life sounds awful. They must live celibate. Choosing a sleep spot poorly lets astronauts suffocate during a nap. Astronauts use ventilator fans to move air. Without this, they risk surrounding themselves with...a bubble of carbon dioxide.This bubble can kill them. NASA has not solved this issue yet; it is strange.

Astronauts feel sad or lonely orbiting Earth. They hold back tears so they do not cover their eyes with tears. In zero gravity, tears just stick to the eye like a wet, gross kind of rheum. NASA spacewalk officer Allison Bollinger explained, "They actually clump around your eyeball.Canadian astronaut Chris Hadfield explained the phenomenon onTwitterto an emotionally curious fan.

We cannot define the weight of the solar system, this huge mass of matter. Planets, moons, and stars do not have weight. Their weight comes from their gravitational force.Their weight comes from their gravitational force.The Earth weighs 5.972 x 10^24 kg. That is a lot of kilograms. Still, it is far from the sun, which makes up 99% of all the mass in the Solar System. The sun's core holds hydrogen, helium, carbon, nitrogen, and oxygen swirling together in massive nuclear fusion.The sun's core uses massive nuclear fusion.Ninety-nine percent of our solar system's mass belongs to the Sun.

Mars is a large red planet. It has a thin atmosphere mostly made of iron. You do not expect snow there. Still, NASA's Phoenix Mars Lander found heavy rain in the red planet's atmosphere in 2008. Cold nighttime temperatures cause atmospheric instability, creating small, local ice bursts like heavy snow.Convective snowstorms happen.It snows on Mars only during the Martian night. This happens because of atmospheric instability from radiative cooling of water-ice cloud particles.

Spending much time in zero gravity harms how your body works. Astronaut Scott Kelly found this fact after spending 520 days in space. Kelly's return to Earth left him incapacitated, feverish, and with swollen legs.Kelly spent 520 days in space.Kelly's adjustment to Earth's gravity left him incapacitated, feverish, and with swollen legs.

Kelly wrote about attending a dinner party 48 hours after returning to Earth for The Age.The Age"All my joints and all of my muscles protest the crushing pressure of gravity. I am also nauseated, though I have not thrown up." Kelly sought to see if astronauts could survive a Mars trip without major physical or mental effects. It appears anyone making that trip must face long-term physical problems.

Saturn is the solar system's tough planet. No one knows its day length or how to measure its magnetic axis. A strange hexagon sits on its north pole, and its rings vanish sometimes. Saturn's rings are razor thin relative to its size. They span about 175,000 miles across and are only 3,200 feet thick. Looking at Saturn's rings head-on makes them disappear completely. Space Probe Cassini photographed the rings at different times. Compiling those images showed the disappearance of Saturn's rings was quite amazing.Space Probe Cassini photographed the rings.After compiling the images, the disappearance of Saturn's rings appeared awe inspiring.

Methane rain carves into Titan annually over Saturn's most famous moon. What people thought were thousand-year storms are actually this methane rain. One Titan year is near 30 Earth years, but that is still much less time than thought. The methane rain cuts into the moon's icy surface.The methane rain cuts into the moon's icy surface.UCLA scientists used data from the Cassini probe to calculate storms on Saturn. The probe monitored three of the moon's four seasons and created mountains, rivers, and volcanoes.

Scientists should know more about Saturn, a very recognizable solar system planet. Confusion about time passing comes from changing data we have on the planet. In 1981, Voyager 2 calculated Saturn's rotation took 10 hours 39 minutes. When space probeCassini reached the Saturn system in 2004.The rotation period was recorded at 10 hours, 47 minutes. Saturn is a gas giant with mass, and there are no features to record on its surface.No features exist on the planet's surface.Clouds exist, but their path around the planet does not relate to the gas giant's rotation. Astronomers struggle to study Saturn's magnetic axis; this proves harder than researchers first thought possible.

If space had a smell, it would not be anything but raspberries. Researchers studying Sagittarius B2, a dust cloud in the galaxy's middle, found ethyl formate in 2009. Ethyl formate exists naturally in bees and ants and is used in manufacturing.Ethyl formate gives raspberries their unique flavor.Arnaud Belloche, a researcher at the Max Planck Institute for Radio Astronomy in Bonn and a professional wet blanket, told The Guardian.He told The Guardian that ethyl formate gives raspberries their flavor.Many other molecules make space raspberries, even though ethyl formate gives raspberries their flavor.

Satellites pushed past their prime face different fates. Some fall to Earth in a display of scientific destruction, but many former NASA machines move into a supersynchronous orbit called a "graveyard orbit".These orbits sit several hundred kilometers above synchronous orbit. This prevents them from forming space junk that could affect working satellites nearby. Engineers find it easier to push a satellite into a junk orbit than to bring it down to Earth, which is called "de-orbiting". Engineers use the last fuel and a slight change in velocity to move a dead satellite into the graveyard orbit, clearing the way for functioning satellites.Engineers use the last fuel and a slight change in velocity to move a dead satellite into the graveyard orbit.This action moves the dead satellite out of the way of functioning satellites.

Researchers state zero gravity is the worst condition for sex.

Zero gravity causes nausea. This is not sexy. Also consider all the sweat and different fluids that show up during sex.Fluids.If you had sex in outer space, you would immediately have fluids that appear.You would be surrounded by sweat pools.A woman who kissed her husband in zero G flight said, "You actually have to struggle to connect and stay connected." This is a real critique of relationships on terra firma and in ad astra.Terra firma.andad astra..

In 1998,NASA startedto "discover 90% of the NEOs [Near Earth Objects] larger than one kilometer," and in 2005, NASA expanded its goal to include NEOs larger than 140 meters.

NEOs are "comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth’s neighborhood," says JPL.JPL. In 2020,NASA sharedthat it had been "observing near-Earth asteroid 1998 OR2, which looks like it's wearing a mask... passing 16 lunar distances away."

Measuring a black hole is hard because there is nothing to measure. You cannot see a black hole due to its two main features—being black and being a hole in outer space—but black holes do have mass. To find a black hole's mass, researchers must measure everything around it. They must keep track of the movement of nearby stars and track the distribution of hydrogen cyanide (HCN) and formylium (HCO+). Tracking this movement lets scientists figure out the black hole's weight.track of the movementtracking the movement of stars near the hole and monitoring the distribution of hydrogen cyanide (HCN) and formylium (HCO+), scientists use this to estimate the weight of a black hole.