Price:
$800,000/night
Location:
United States of America
Want to watch 16 sunrise one day? Enjoy zero gravity floating? Become one of the few people who stare at the earth from space. Just wait another four years and spend an astronomical sum of $9.5 million to achieve all this.
Recently, OrionSpan, an American space technology company, announced in California that it plans to build the world's first luxury space hotel "Aurora Station" in 20021year, and start manned travel in the following year.
Company officials said that their fully modular space station "Orion" can accommodate six passengers (including two astronauts) at the same time, and it will be put into use after launch, and it will run in low-earth orbit for 12 days.
"We want people to go into space, because this is the last field of our civilization," company founder Frank Bunger told Bloomberg.
According to Washington post, Bonger revealed that the company lowered its pricing to below $6,543,800+,which is lower than ever. It is reported that in 200 1 year, American rich man dennis tito paid $20 million for a seven-day space trip.
12 days100000 USD, about 791660000 USD per night. According to CNN, this travel route has exceeded the budget of most people, but Orion insists that passengers will become "real astronauts".
"This kind of experience is not suitable for everyone. Aurora mainly caters to those who are passionate about space and astronomical research, "Bonger said. "We don't sell beach tours at will.
We sell the experience of becoming an astronaut. You can expect that some people will be willing to spend money to have this experience. "
According to the traditional operation, tourists usually need 24 months of intensive training before entering space. Orion simplified this "astronaut certification procedure" to three months, which was included in the total cost.
According to CNN, the company has a professional team composed of space veterans, and has accumulated more than 140 years of space experience.
After entering the "Aurora" space station, the rich tourists will fly at a high speed in low earth orbit at a height of 322km 12 days. CNN said that they should not be bored.
First of all, the space hotel will circle the earth once every 90 minutes, which means that they can see the sunrise and sunset of 16 every 24 hours. Enjoying the stimulation of zero gravity, they can shuttle freely in the hotel and see the laser of the north and south of the earth from the hotel window.
Secondly, there are a series of research and experimental activities in the space station, such as growing food in low earth orbit and soaring over the home.
Moreover, they can also video chat with their relatives on the earth through the high-speed wireless network and imagine the "hero welcoming ceremony" they will enjoy after returning to the earth.
At present, the Space Hotel has accepted reservations in official website, Orion, with a deposit of 80,000 US dollars. If the applicant finds himself unable to cope with the full amount of $9.5 million, the deposit can be refunded in full.
In fact, Orion is not the only company that boldly promotes "elite space travel".
According to CNN, Axiom, headquartered in Texas, USA, is operated by former managers of the International Space Station.
The space program will send tourists to the International Space Station from 20 19, and put its own commercial space station into orbit before 2024.
Virgin Galactic is also targeting "short-term suborbital business travel", and it will price the service at $250,000.
Richard branson, the company's founder, initially said that space flight would begin in 2009, but the official date of the "maiden voyage" has not yet been determined.
"Everyone predicts that the release price will drop," Bonger said. "Almost every week, another rocket launching company enters the orbit in a brand new, cheaper, faster and better way."
Washington post said that Orion's announcement of the launch of the luxury space hotel coincided with the vigorous recovery of the commercial space industry.
In February this year, Space Exploration Technology Company successfully launched the Falcon heavy rocket at Kennedy Space Center, which became one of the milestones to rekindle people's interest in space.
That launch also raised a question: Can space exploration technology companies and other private companies maintain the momentum and fulfill their promises to send humans into space?
This possibility is expected to increase as the Trump administration tries to adjust the role of NASA and allow private enterprises and international partners to participate in cooperation.
Some skeptics believe that there are very few tourists who travel in space with spare money, and the market prospect of space travel remains to be seen.
In this regard, Bonger said that apart from hotel services, the space station has many purposes: to provide comprehensive travel to chartered flight for other commercial companies, and to support zero-gravity research and space manufacturing.
"Our structure is that we can easily increase production capacity and keep up with market demand."
According to CNN, Orion has been planning the next ambitious goal since the Space Hotel: launching the world's first residential apartment into space.
How to realize interstellar travel and space travel;
Man has been exploring the unknown starry sky. How to realize interstellar travel is a great challenge for human science and technology at present. To leave the solar system, we need the third cosmic velocity, but the nearest Centauri galaxy needs 4.2 light years, so it takes 4.2 years to reach the nearest star system with a curved light-speed spacecraft. This galaxy doesn't know whether there are living planets. Here, we will share with you how to realize interstellar travel and space travel.
How to realize interstellar travel and space travel;
1, human beings must build light-speed spacecraft or sub-light-speed spacecraft (sub-light-speed spacecraft can be realized by nuclear fusion technology, and curvature light-speed spacecraft can also be used).
2. The breakthrough of human nanotechnology has given human beings the opportunity of eternal life, so that they can watch the wonders of the universe during the long interstellar voyage.
Even if nanotechnology is not used intelligently, human beings need at least stable hibernation technology.
4. Humans need to ensure that their speed reaches the first-class superluminal speed, so as to avoid being absorbed by low-latitude space or escaping from the attraction of black holes.
Why the expansion rate of the universe is 65.438+038 billion years;
For the origin of the universe, the mainstream scientific community now generally accepts the Big Bang theory (Big
Bang). The universe started from a singularity with extremely high temperature and density. The observed cosmic microwave background radiation and the expansion of galaxies away from each other provide evidence for this theory.
1, Hubble time
The distance between galaxies is expressed by Hubble constant. Compared with the long history of the universe, the Hubble constant in human period should obviously be a constant value, but it is very difficult to get the Hubble constant accurately because of the methods and means of measuring the distance between galaxies. Hubble initially set the Hubble constant to 500, and the Hubble constant has been constantly adjusted since then.
On March 2, 2065438, the European Space Agency announced that according to the measurement results of Planck satellite, the new Hubble constant value is 67.80 0.77 (km/s)/MPC (MPC stands for one million parsec, which is about 3.26 million light years), that is, galaxies are away from the Earth once every 3.26 million light years (or every 3.26 million years).
Hubble constant is the expansion slope of the universe. If we trace back to the point where the volume is zero, we can find the reciprocal of Hubble constant.
1mpc=3.09× 10^ 19km
1 year = 3.16×10.7 seconds.
It is estimated to be about142.6-145.9 billion years. This time is called Hubble time.
If the universe has been expanding at this Hubble constant, then Hubble time is obviously the age of the universe. But in the history of the universe, Hubble constant is a variable.
If the cosmological constant (dark energy density) remains unchanged, then the expansion speed of the universe should be slow in front and fast in the back, which means that the universe has not expanded under the current Hubble constant, so this Hubble time cannot be used as the age of the universe. But coincidentally, the Hubble time calculated according to the current Hubble constant is very close to the age of the universe.
2. The age of the universe
The age of the universe is calculated by microwave background radiation, because it is the first beam of light in the universe.
At the beginning of the Big Bang, the temperature of the universe was extremely high and the particles were generally ionized. Photons constantly collide with particles in the process of motion, so they can't move freely and can only change their paths constantly. After a period of time, the temperature drops, proton electrons combine into neutrons, forming a stable atomic structure, and the density of matter decreases. At this time, photons are decoupled and start to emit freely.
Scientists estimate that the first beam of light was generated around 380,000 years after the Big Bang, and huge energy filled the whole space. As time goes on, the universe is getting bigger and bigger and the temperature is getting lower and lower. Now there are only about the embers of the 3K Big Bang.
The characteristics of microwave background radiation are the same as those of blackbody radiation with an absolute temperature scale of 2.725 kK. We know that the total energy in the universe is certain. When the universe expands, the energy density decreases and the temperature decreases. So after getting the temperature, we can roughly get the size of the universe, and then get the expansion speed according to the red shift, so we can basically know when the universe began to expand.
At the same time, the European Space Agency also published a cosmic microwave background radiation map based on the data returned by the Planck space probe. This panorama, which is the most accurate to date and reflects the initial state of the universe, almost perfectly verifies the standard model of the universe and accurately calculates the age of the universe as 65.438+0.382 billion years.
Cosmic microwave background radiation map
3 Observable boundary of the universe for human beings
The limited history of the universe and the limited speed of light will inevitably lead to the limited volume of Hubble. The farthest universe we can observe is not simply multiplied by the age of the universe and the speed of light, but also multiplied by a scale factor. Suppose that a beam of light from a celestial body 65.438+038 billion years ago now enters our sight, and the photon has spread 65.438+038 billion light years. At the same time, space itself is expanding, which even exceeds the speed of light. This means that when we observe this celestial body, it is far away from us.
Now the farthest galaxy we can observe is 46 billion light-years away from the earth. With the passage of time, due to the overall expansion of the universe, all galaxies will be farther and farther away from us until they die.