The deadliest thing in space is radiation. Exposure to high levels of radiation can cause health issues such as radiation sickness, which can lead to physical damage and even death. In the vacuum of space, radiation is much more intense than on Earth due to its lack of atmosphere, which acts as a natural shield.
This is why astronauts and cosmonauts must wear protective gear to avoid overexposure. Radiation isn’t the only danger in space, though. The lack of gravity can have a serious effect on an astronaut’s mental health and cause depression and anxiety.
Space debris from meteorites or old satellites can also severely damage spacecraft or the astronauts themselves if they are in the wrong place at the wrong time. Additionally, astronauts must be careful to monitor their oxygen levels because if the levels become too low, they can suffer from hypoxia, which is when oxygen deprivation occurs.
All of these factors make space an incredibly dangerous place for humans to exist.
What is the weirdest space fact?
The weirdest space fact is that space is really, really big. In fact, it is estimated that the known universe contains over 100 billion galaxies, each with millions or billions of stars. It’s thought that each of those stars could have their own planets, and that only a tiny fraction of those have been discovered.
That means there is an almost infinite amount of space to explore and still so much that is unknown. It’s hard to fathom just how vast space is, and it’s easy to see why it’s one of the most awe-inspiring phenomena in the universe.
What is the most extreme object in the universe?
The most extreme object in the universe is currently believed to be a quasar. Quasars are some of the brightest and most distant objects to be seen in the night sky, billions of light years away. Quasars are thought to be some of the most powerful objects in the universe, produced by matter being swallowed by supermassive black holes.
This compressed matter releases an extremely bright beam of energy, and this energy is what we observe in the night sky as a quasar.
What is a scary fact about space?
One of the most frightening facts about space is the potential for a massive asteroid impact. The power of an asteroid impact is unimaginable, and the potential for a massive asteroid to strike Earth is an ever-present danger.
Such an event would cause unimaginable destruction and the potential for millions of human lives to be lost. Estimates suggest that there may be an asteroid capable of hitting Earth in the future, and the probability increases with each passing year.
Fortunately, organizations like NASA are taking steps to try and track near-Earth objects and alert the world if a potential threat is detected.
Is there a secret planet in space?
No, there is no secret planet in space. Astronomers around the world have been searching for new planets for centuries, and have found thousands of new planets—but none of them are secret. In fact, if there were a secret planet, given how much space there is in our universe and the technology we have at our disposal, it’s highly likely we would have already detected it inadvertently.
What does space smell like?
Although it’s difficult to describe, space actually has a distinct smell. Astronauts report the smell is similar to burnt metal or seared steak. The scent is caused by ions that are released when metals react with oxygen, nitrogen and other elements in the space environment.
The smell can also be described as hot metal, welding fumes and an electrical charge. When entering a space station, astronauts report the scent of ozone, and some scientists believe hydrogen can also be detected as an earlier post-flight smell.
The smell of space grows more intense the longer people spend in around it.
What is a dead planet?
A dead planet is a type of astronomical object, most commonly referring to planets in our solar system that no longer have any geological activity or atmosphere. These planets are sometimes referred to as “barren worlds” because of their lack of activity.
They are distinguished from planets that may have life support systems such as Earth, and planets that have potential for life, such as Mars and Titan, which may someday become habitable. Examples of dead planets include Mercury, Venus, and Pluto.
Dead planets are typically distinguished by their lack of volcanism, tectonism and weather patterns, making them unable to sustain an atmosphere which could, potentially, support life. Even though they show signs of planetary evolution, their features are not as complex or pronounced as those of their neighbors.
They contain little to no visible surface features and appear to have experienced no significant weathering over time. Furthermore, they lack any detectable magnetosphere or internal heat source because their cores are too small to generate convection and drive the planetary dynamo.
These planets offer us a chance to learn about the forces that create planets, and what processes allow them to survive over billions of years. Despite their unassuming nature, dead planet studying can help us better understand the formation of planets, their evolution, and the stability of planetary systems as a whole.
What can destroy a galaxy?
A galaxy can be destroyed if it encounters a much larger neighbor, if it has a close encounter with another galaxy, or if it’s subjected to a massive bombardment of radiation or radiation from a supermassive black hole.
A supernova or a galactic collision can also cause catastrophic destruction, although these events tend to be rare. In certain cases, it is possible that a sufficiently powerful energy source could be capable of completely annihilating a galaxy, though such a possibility may never occur in the natural universe.
What is the galaxy that will hit US?
There is currently no known galaxy that is expected to hit the United States in the near future. While astronomers are constantly discovering new galaxies, the vast majority of them are too far away from Earth to pose any danger of hitting us.
Our own Milky Way Galaxy is on a collision course with the neighboring Andromeda Galaxy billions of years from now, but it is not expected that any Earthly impacts would occur due to this collision.