Back to Mars: Fall in love with a Martian guy
Instead of telling the coming-of-age story of earth's first extraterrestrial child, the film focuses on a regular road trip by a pair of teenagers who quickly grow out of their initial estranged relationship and drive a variety of stolen cars through the American West (circa 2034). "Back to Mars" could have gone in a lot of interesting directions, but it stuck to the teen movie formula, especially as it got more and more fake by the end. While the first half of the film is reminiscent of the Martian (though nowhere near as much), the final story is closer to a teen cancer movie like Me and Earl and the Dying Girl (and nowhere near as much). Back to Mars doesn't seem to know where it stands. The film mistakenly skips through the backstory of alien exploration and how The Martian orphan Gardner Elliott (Asa Butterfield) grows up with scientists and astronauts. Why was Gardner orphaned? His mother, Sarah (Janet Montgomery), was the mission commander of the first Mars colonization mission. But two months into her interstellar journey, she discovered she was pregnant. On Mars she gave birth and died soon after. Gardner is left alone with a robot and a scientist named Kendra (Kara Kino) who acts as his surrogate mother. Most of the action takes place in 2034: the teenage Gardner wants to return to Earth. Aside from his natural curiosity about the planet where other people were born, he's eager to make the trip for two specific reasons: he's eager to find his father, and he's eager to meet Tulsa (Britt Robertson), the tough, lonely, savvy Earth girl he's video-chatting with. Doctors are divided over whether Gardner could have survived earth's different air pressure and gravity than Mars. Nathaniel Sheppard (Gary Oldman), the former director of the Mars Colonization Project, opposes Mars Boy's return to Earth, but he no longer has the authority to make a decision. Gardner visited Earth for the first time after his bones were surgically strengthened. Much of "Back to Mars" focuses on Gardner and Tulsa's relationship as they go on a road trip to find his dad. Soon after Gardner escaped custody, they were on the run together. Short of money, they had to barter and even steal. They quickly fell in love with each other (the long video chats that preceded them should have been a catalyst), and Tulsa was desperate to help Gardner fulfill his wishes after his health problems. Speaking of video chat...... This is one of "Back to Mars" 's biggest scientific missteps. There are many mishaps, but this one is the most egregious, and easy to spot, because communication problems between Earth and Mars are a big part of "The Martian." The radio waves travel at the speed of light, and the time difference between Earth and Mars is about four to 24 minutes (depending on the relative positions of the two planets). Communication cannot be instantaneous: in fact, two-way interactions can have a delay of at least eight minutes between sending and receiving. So every conversation between NASA and the astronauts in Back to Mars (not to mention Gardner's webchat with Tulsa) is pure fantasy. It's a sign that these writers are either scientific idiots or just don't want to use their brains to incorporate reality into their scripts. The movie does have some touching moments, but they're too small. There are some unwieldy fun elements (seemingly borrowed from the long-forgotten 1999 film "Love in Time") and a romantic romance. Although all these are wonderful, they still cannot change the fact that the film has a small structure and low intention. Road movies and teen cancer movies are so plentiful these days that stories about orphans on Mars are rare. Asa Butterfield and Britt Robertson, the two leads, give good performances: they both find the heart of their characters and deliver them. Their chemistry is intermittent due to time constraints, but it's enough to convince us of the sincerity and depth of their love. A love story like this takes time and dedication, and "Back to Mars" is more than that because it does both well. If there was a letdown in the cast, it was Gary Oldman, who started well but ended up overacting and superficial.
The adventures of NASA's Curiosity and Mars 2020 rovers
The Mars Science Laboratory mission is a Mars rover called Curiosity, part of NASA's Mars Exploration Program, a long-term effort to explore the Red Planet with robots. The curiosity aims to assess whether Mars ever had an environment capable of supporting small life forms called microbes. In other words, its mission is to determine Mars' habitability. To find out, the rover is carrying the largest and most advanced suite of scientific research instruments ever sent to the surface of Mars. The station will analyze samples dug out of the soil and drilled out of the rock. The climatic and geological records of the planets are essentially records "written in rock and soil", including their formation, structure and chemical composition. The rover's vehicle-borne laboratory will study rocks, soil and local geology to examine the life building blocks of Martian chemicals (in the form of carbon, for example) and will assess the Martian environment in the past. Curiosity won't be NASA's only Mars rover active next summer. Mars 2020 will travel to the Red Planet. Although the newest rovers borrow from Curiosity's design, they're not twins: Built and managed by NASA's Jet Propulsion Laboratory in Pasadena, Calif., each has a role to play in exploring Mars and searching for ancient life. It's the close look that makes siblings stand out. NASA's Mars 2020 rover looks almost identical to Curiosity, but with many differences. In addition to studying the weather, Mars 2020 will also carry samples of spacesuits that will allow scientists to study how they degrade. An oxygen generator will test technology for astronauts to make their own rocket fuel from the Martian atmosphere. An underground radar fond of a lunar rover may one day be used to find buried water ice. For the first time in the history of space exploration, scientists have measured seasonal variations in the gas filling the air directly above the surface of gale crater on Mars. As a result, they noticed something puzzling: Oxygen, the gas used by many living things on Earth to breathe, behaves in a way that scientists have so far been unable to explain through any known chemical process. NASA's Curiosity rover has come a long way since touching Mars seven years ago. It traveled a total of 13 miles (21 kilometers) and climbed to its current position of 1,207 feet (368 meters). Along the way, curiosity discovered that Mars had the conditions to support microbial life in ancient times. The mineral-rich salt rocks found by Curiosity are interpreted as evidence of shallow, saltwater ponds that overflowed and dried. As The Martian environment transitioned from wet soil to today's frozen deserts, these deposits became watermarks created by climate fluctuations. Scientists want to know how long this transition takes and exactly when it happens. The latest clue could be a sign of discovery, as curiosity heads towards an area called a "sulphate device" that is expected to form in drier environments. It contrasts sharply with the descent, where curiosity finds evidence of persistent freshwater lakes. The clay lighthouse seen from space brought the rover here, but the region clearly has other stories to tell. Now, as Curiosity scours the area, scientists can gaze at geotourists and find landscapes old and new. There are several types of bedrock and sand, including active sand ripples that have changed over the past year. Pebbles are scattered everywhere - are they eroding from the local bedrock? A Mosaic taken by NASA's Mars Curiosity rover looks at Mount Sharp, which has been climbing since 2014. Highlighted in white is a rocky area filled with clay that scientists are eager to explore. It could shed more light on the role of water in creating Mount Sharp. On May 20, 2018, NASA's Curiosity rover successfully drilled a 2-inch-deep hole in the target called Duluth, the first rock sample captured by the drill since October 2016. A Mosaic of images shows a boulder-sized rock called "Strathdon," which is made up of many complex layers. NASA's Curiosity Mars rover used its Mastcam to capture these images on July 9, 2019, the 2461 day of mission day. The Mosaic of this image shows a large rock, called "Strathdon," with sediment on it, as seen by the Mars Handheld Lens Imager carried by NASA's Curiosity rover. These images were taken on July 10, 2019, the 2,462nd Martian day. NASA's Curiosity rover has captured the highest-resolution panoramic view of the surface of Mars to date. The composite image consists of more than 1,000 images taken during the 2019 Thanksgiving holiday and carefully assembled over the following months to include a 1.8 billion pixel view of the Martian landscape. The mobile station's Mastcam uses its telephoto lens to produce panoramic views. A dramatic view of the Martian landscape can be seen in new images taken from space, suggesting that NASA's Curiosity rover is studying a site called woodland Bay. This is just one of many stops the station makes in an area known as the "clay bearing unit" on the Sharp side of the 3-mile-high (5-kilometer-high) mountain inside gale Crater. NASA's Mars Curiosity rover's HiRISE camera is seen on board the Mars Reconnaissance Orbiter in this image taken from space on May 31, 2019. In the image, curiosity is shown as blue blobs.
Mars Canal, Mars face, Mars Mouse, where is life on Mars?
Are we the only intelligent life in the universe? This problem has puzzled mankind for thousands of years, and the search for extraterrestrial life has become one of the missions of astronomy. Mars, the closest planet to Earth, is a natural candidate. Ever since the advent of telescopes, humans have pointed them at Mars and looked closely at it. As technology has improved and telescopes have gotten bigger and bigger, more and more details have been found as they look at Mars. Cracks in the surface of Mars, dark and light on the surface of Mars, Mars white polar cap...
Who owns Mars?
Who owns Mars? To date, more than 500 people from around the world have flown into space, sojourned in orbit, all the way to the International Space Station and even landed on the far side of the moon, but they have never made much of the alien landscape. Now that humans are setting their sights on Mars and trying to establish colonies and habitats, it makes us wonder if we have the right to do so. That's been revealed. Now to answer some more specific questions: Who owns Mars? Are you the devil? Have you always been curious? So why not pay attention to more clips like this? Then sound the alarm and find out more! And the obvious answer is: Martians own Mars!
What are the biggest obstacles currently preventing humans from landing on Mars?
The fragility of the human body contributes greatly to both: launching unmanned vehicles is expensive, but it is cheap compared with sending people and life-sustaining equipment and supplies. A one-way trip to Mars would expose the human body to close to safe levels of radiation. Extra radiation shielding for the spacecraft? That'll cost more. A lot more. Getting a kilogram of material into Orbit around Mars currently costs about $45,000, and landing will become more difficult as the size of the payload increases, requiring more funding for research and development. If you were to send astronauts to Mars and back in a short time, you would need to launch many times as much mass to fuel the return journey. If you're going to live on Mars for a while, produce your own methane to fuel spacecraft for return to Earth, or have astronauts build bases on Mars, you're going to have to deal with the Martian environment and fragile human bodies for a long time. Mars' surface gravity is about 37.5 percent that of Earth's, and living in such a low-gravity environment for a long time could cause irreversible damage and possibly damage human fertility. The intense radiation on the surface of Mars is deadly to humans. Radiation damage could be mitigated by living underground or building heavy bases with radiation shielding, but cancer rates would increase exponentially over time on Mars. The lava tubes left behind by ancient Volcanic activity on Mars are ten times as wide as those on Earth due to low gravity. Some scientists plan to put astronauts inside them, but they're complicated blind tubes that you have to manually ventilate. They're full of volcanic rock. Whether humans can reproduce on Mars is an open question. The intense radiation from Mars is of no benefit to human embryos. Although sperm can move, the developing embryo will be elevated in the womb due to low gravity, which can put pressure on a pregnant woman's diaphragm and cause breathing difficulties. Low gravity conditions can also lead to abnormalities in pregnancy and a large number of premature births. However, if you have the money to send more supplies, we can simulate earth's gravity with a rotation loop. For the foreseeable future, people in so-called Mars bases will have to live in underground facilities or thick bunkers with artificial light, out of sight for months at a time, to the maximum extent possible. Living in a closed environment for long periods of time can lead to other health problems: depression, vision loss, high blood pressure, lack of responsiveness and concentration due to lack of external stimulation. Of course, we can also make the astronaut space huge and have a variety of recreational facilities, so the design of the construction schedule, the construction machinery, the nuclear batteries and lots of solar panels to power them, the tools to clean up the dirt and so on, and their freight, please. In addition, the lack of microbial diversity on the Mars base, like the space station, is detrimental to maintaining the balance of the human microbial community. Moving soil in large quantities from the earth? Freight per kilogram, please. Musk has repeatedly claimed that the cost of operating SpaceX Starship will eventually be reduced to just fuel and maintenance, like passenger jets, for a full-scale Mars mission. In this case, it would cost about $100 to send a kilogram into Orbit around Mars. There's a huge technological gap in between, and SpaceX is filling it in. But if you have 450 times SpaceX's budget injection, you can do all the things he promised with today's rockets... It's a question of money.
Modern science and medieval science
From the pulpit of Pisa Cathedral, Giovanni Pisano (1248-1314) left an immodest account, stating that his talent had surpassed that of his father, of his contemporaries, and of all the artists now dead: "God had mercy on this man, and endowed him with such genius, Amen.
Science and pseudoscience
In 1959, C.P.Snow, an academician in Cambridge, England, delivered a speech that shocked the academic circle: "Two Cultures and the Scientific Revolution". Snowe wants to bridge the "two cultures" gap by clarifying the differences between the humanities and the sciences. Humanities intellectuals like to ask science intellectuals, "Have you read Shakespeare?" Scientific intellectuals who can't answer often feel embarrassed. Conversely, when scientific intellectuals ask human intellectuals, "Do you know the second law of thermodynamics?" Humanistic intellectuals, on the other hand, pride themselves on their ignorance. Most of the decision makers, Snowe argues, are humanities intellectuals who are "almost scientifically illiterate".
A scientist who gives his life to science
On the morning of February 1564, a little baby was born in Pisa, Italy. His parents named him Galilei, Galileo. Galileo's father, Vincencio, was a cultured gentleman who moved his family to Florence in 1574 in order to give his children a better education. Soon after arriving in Florence, Galileo was sent to a school run by a monastery. In addition to teaching religious doctrines and religious stories, schools run by monasteries also offer courses in Latin, rhetoric, logic and mathematics. Here Galileo was exposed to far more knowledge than his father had ever acquired, and to a wide variety of views on things, which greatly broadened his horizon.
Microgravity science and space life science
If hot air is lighter than cold air, it must float upwards; The flame of a fire always goes up instead of down. In addition, the emergence of life on Earth cannot rule out the influence of gravity. These problems can be solved by microgravity experiments in orbit to discover the essential laws of phenomena between matter and life.
Annihilation is a must-see for sci-fi fans
"Annihilate" is a column and three system won is science fiction world of Hugo award of the Nobel Prize for literature works, it is worth mentioning that if not annihilate, experience three awards, one year before because annihilation was beaten three body of Hugo award, but this book almost at home without what flutter, in later made into a film is no fame, In the end, it just fades out in China, and is even available for free on all major video websites without any members. As a hardcore science fiction fan, xiaobian summarizes the reason for this. In fact, this film really reflects the aesthetic differences between east and West for science fiction.