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news.sciencemag.org/2009/05/how-plants-survived-chernobyl, Is the mission-design tag description wrong? I'm an experienced science, technology and travel journalist and stargazer writing about exploring the night sky, solar and lunar eclipses, moon-gazing, astro-travel, astronomy and space exploration. We now know that Mars is a very cold, dry planet, where liquid water cannot exist on the surface. Lack/Loss of magnetic field led to Mars's atmosphere being mostly stripped. Plants don't just need carbon dioxide; like most organisms, they need oxygen to survive as well. Can a semipermeable greenhouse be used to extract CO2 from the Martian atmosphere and help provide oxygen to a colony without using a pump? This process had transformed Mars into the cold, dry world we know today by about 3.7 billion years ago, observations by NASA's MAVEN orbiter suggest. It's possible that a robot simply cannot dig deep enough or collect enough of the right kind of sample. It’s not just about data rates, but the system used. Even if it had a similar composition to earth's, it's simply too thin. What about Mars, or Venus or Mercury? You may opt-out by. At its closest point, there’s a 4 minute delay for radio signals to travel from Mars to Earth. Why can't we watch live as NASA's latest rover descends and lands on Mars? I don't know. The Red Planet is a cold, dead place, with an atmosphere about 100 times thinner than Earth’s. It also gets a lot of sunlight. Why would we want to live on Mars? There’s another bonus too. “It has a similar rover antenna pointing challenges [but it’s a] better plan and has a chance of getting reasonable data rates, though HD is still challenging,” said Townes. But that atmosphere was stripped away as the sun grew hotter, and now Mars is frozen. There are a number of ways the problems of living on Mars can be overcome. Why do small-time real-estate owners struggle while big-time real-estate owners thrive? Why would a land animal need to move continuously to stay alive? Mars is also subject to winds and seasons, whereas the temperatures on the moon can vacillate between 253 degrees Fahrenheit and -387 degrees Fahrenheit in a single day.The moon’s lack of an atmosphere is the result of its paltry mass and weak gravity. The plants cancer would get cancer. But, as technology gets better, we have learned that Mars is not a planet that is habitable for us. Mars surface conditions pretty much preclude the existence of liquid water. NASA says Mars' soil has the nutrients for growing plants, how about the Moon? “With a larger ground telescope, say 10m diameter, we could support 200 Mb/s.”. This artist's concept shows what Deep Space Station-23, a new antenna dish capable of supporting ... [+] both radio wave and laser communications, will look like when completed at the Deep Space Network's Goldstone, California, complex. Be interesting to ask for a laundry list of features a, you are right, I jumped to conclusions. A third option would be to have an orbiter with a huge camera that can be trained on the rover as it lands and simultaneously send that signal back to Earth. Why can’t we watch those “seven minutes of terror” live on TV? What is the daytime visibility from within a cloud? You’d also end up with a bits-per-second data rate, so the quality would be terrible. It's a backup plan for the human race should a planet-wide disaster happen on Earth. The atmosphere on Mars is made up of mainly carbon dioxide. Life may once have existed on Mars, which is largely why so much exploration of it is being done now. The Mars Pathfinder came up with negative results when looking for signs of life on Mars. I'm the editor of WhenIsTheNextEclipse.com and the author of "A Stargazing Program for Beginners: A Pocket Field Guide" (Springer, 2015), as well as many eclipse-chasing guides. NASA has demonstrated optical communication of up to 622 Mb/s from the Moon, but Mars at close range is over 150 times farther away from Earth, which makes communicating from Mars 22,500 times harder. So, why can't plants live on Mars? no organs to be compromised) means they are innately resistant to radiation damage. We’re talking about something broadcast and sent back to us on Earth without first being stored. Cold. Here’s why live TV from Mars is difficult, impossible in high definition (HD), and how NASA has incredible plans to change that. This is enough to allow it to exist briefly in a liquid state. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. You need soil. However, at between 80 and 3,125 bits-per-second (b/s) to a 34m antenna or 800 and 15,625 b/s to a DSN 70m antenna, that’s not going to cut it for HDTV. The thought of there being another planet we could live on is mind-blowing. The next largest barrier (after the atmosphere and composition of the air already mentioned) is soil. Can plants thrive without atmospheric nitrogen? Mars does have an atmosphere, but it is about 100 times thinner than Earth's atmosphere and it has very little oxygen. But the reason we haven't sent humans on five-year missions seeking out new life and new civilizations isn't because of cost, politics, or lack of warp drive. A better—but still tricky—plan would be to have a rover send its video signal to an orbiter above it that can relay the images back to Earth. We actually could live on Mars with the right equipment! Where Would We Live? What is the difference between the accent on q and the accent on semicolon. future missions to retrieve, as seen in this illustration. Space Exploration Stack Exchange is a question and answer site for spacecraft operators, scientists, engineers, and enthusiasts. When charged particles from the sun smack into the molecules in Mars' atmosphere, they energize the molecules enough that they can zip away from the planet. There is also no edible food and very little available water. There’s very little water and absolutely no food. If the Martian atmosphere were a bit thicker, it could be a different situation, but, as pointed out in one of the other answers, plants actually need oxygen as well as carbon dioxide. The atmospheric pressure is at or below the triple point of water, … What is the current school of thought concerning accuracy of numeric conversions of measurements? M ars is a lousy place to try to live—what with the paralyzing cold, the blistering radiation and the thin carbon dioxide atmosphere. It doesn't have enough gravity or a magnetic field strong enough to hold in an atmosphere thick enough to keep it warm, with the sun the way it is now. Except for small pockets, Mars's magnetic field is too small to protect the surface. All life as we know it requires liquid water as a medium (a polar solvent) in which the chemistry of life can take place. Create and populate FAT32 filesystem without mounting it. You would agree that the center of Antarctica in winter is cold, not the best of places to set up … However, NASA has something up its sleeve—its Deep Space Optical Communications (DSOC) technology. On Earth, plants use carbon dioxide and sunlight for photosynthesis. For the latter two options to work, there would need to be a clear line of sight to Earth, but that’s possible. But we can’t live naked on the surface for a couple of reasons: 1. How do I provide exposition on a magic system when no character has an objective or complete understanding of it? That's basically the only way for life to happen, as far as we know. They can produce oxygen from carbon dioxide, but that doesn't help cells that aren't exposed to sunlight; if you put a plant in a very low-oxygen environment, it will die. Seasonal check. rev 2021.1.18.38333, The best answers are voted up and rise to the top, Space Exploration Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. At the equator, temperatures vary by about 100oC each day and in mid-latitudes by about 60oC. One objection that often gets raised when talking about … Aside from water issues, such big temperature swings present a challenge to any life form, though some can handle it. There is evidence of flowing water, which implies a warmer climate and thicker atmosphere. “We probably could do it today, but definitely not in HD,” said Stephen Townes, Directorate Chief Technologist for the Interplanetary Network at the NASA Jet Propulsion Laboratory, to me via email earlier this week. So, yes, we can—but the quality would be very basic. Can we breathe on Mars? Or get live streaming of Perseverance’s first views of Mars as soon as it opens it eyes? Why can't we watch live as NASA's latest rover descends and lands on Mars? If your favorite color is red, then Mars would be the place for you. “We can look at Mars to test if we understand similar processes on Earth as much as we think we do. see: In a quick comparison it seemed that the dose on Mars is higher than that where the experiments were likely done. Why live on Earth when you can live on Mars? To find out if there are four seasons on Mars. Our 12-year-old daughter who, like us, is a big fan of The Martian by Andy Weir, said, “I can’t stand that people think we’re all going to live on Mars after we destroy our own planet. Perseverance will be able to send data from the surface to a Mars orbiter at a maximum of 2 Mb/s, which will then relay it to Earth. 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