5 Answers. First launched in 1990 aboard the Space Shuttle Discovery, the storied space telescope is celebrating is thirtieth year in lonely orbit around the Earth. Being stuck at home doesn’t mean that learning stops. Pluto is the black sheep of the planets in our solar system and it looks like astronomers aren’t sure how long Pluto will remain in its present orbit. We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. In other words, there is probably another Earth out there just because it's statistically more likely that our planet is like other planets than unlike them. Whenever astronomers announce the discovery of an "Earth-like planet," they're usually talking about planets with roughly Earth-like gravity that are close enough to their star to be warm but not hot and that may (or may not) have liquid water. Tafreshi (twanight.org) Life is vulnerable. (Aug. 9, 2010) http://www.space.com/scienceastronomy/alien-life-needs-more-than-water-100520.html, Villard, Ray. Space.com. April 2009. In fact, our planet might be one of the extremes, if only the extremes can actually support life. Here are 9 projects that inspire curiosity for kids of all ages. It's not just about air, water, and distance from the sun. BBC. Originally published: 2/20/2020 "Alien Life May Need More Than Liquid Water to Survive." The Crab Nebula sits 6,500 light-years away, and is currently about 11 light-years across. Learn about this new virus and how we got here. Credit: ESO/B. Too much heat and harmful radiation, or too little water or energy, and our planet’s vibrant biosphere would vanish. What makes Earth suitable for life. © 2020 Discovery or its subsidiaries and affiliates. July 15, 2002. And the fact that the list of essential features is so long might suggest that life is incredibly rare in the universe, or even that ours is the only planet that satisfies all of the necessary conditions. the following characteristic make earth habitable EXCEPT: A. The problem with the mediocrity principle is that the Earth isn't chosen randomly from all of the planets in the universe. Many factors are responsible for making Earth a suitable … What makes Earth ‘just right’ for life? Favorite Answer. Updated: 3/9/2020. Dear Dmama, You mean "life as we know it", correct? All rights reserved. Marveling that the planet that we happen to live on also happens to be very well suited to life is a bit like marveling that polar bears live in a place where their white fur can blend in with the snow — they didn't "happen" to evolve in a snowy environment just like we didn't "happen" to show up in a place that's well-suited for life. "The Ingredients: The Recipe for Life." In fact, it’s just the opposite. Still, the foundational belief behind the mediocrity principle is probably true: There's nothing about this particular planet or this particular star that makes it better for supporting life than others that have the exact same hospitable circumstances. Earth is the third planet in the solar system; the only object in the Universe known to harbour life. SERENDIPITIST. (Aug. 9, 2010) http://www.space.com/scienceastronomy/rare_earth_1_020715.html, Schirber, Michael. The first says that the conditions that have led to life on Earth are so finicky and uncommon that there probably aren't a lot of other planets that meet all the criteria. What makes the Earth suitable for life? Astronomers disagree on just how rare life is in the universe, but Earth nonetheless boasts several features that make it "just right" for life as we know it: The right ingredients: A planet needs liquid water, an energy source and chemical building blocks like carbon, oxygen, hydrogen and nitrogen for the life forms we're familiar with to thrive. Answer Save. But there's a whole lot beyond those three must-have ingredients that makes Earth special. There are a few key ingredients are needed for life to exist. You consent to our cookies if you continue to use our website. Through the use of cutting-edge instruments, scientists finally have the opportunity to probe deep beneath the surface and ascertain exactly how the terrestrial planet formed. Call it the "rare Earth" hypothesis versus the "mediocrity principle" hypothesis. Part of the answer is that the environment has shaped life just as life has shaped its environment. Relevance. Earth is our spaceship, protecting us from the harsh conditions in empty space. Photo by: Getty Images/Bernt Ove Moss/EyeEm. With eclipses, meteor showers, and more, it's a busy month in the night sky this July. In that case there are more than 3 but I will give you 3 never-the-less. ... As we have no means of interstellar travel, and as interplanetary travel doesn’t get us to another suitable environment, we have only this one oasis, Earth, to call home. Astronomy. Creating Superhumans Through Gene Manipulation and More, Star Trek's Kobayashi Maru Exercise Explores No-win Situations, How a Booming Legal Marijuana Industry Could Harm Air Quality, Information about the device's operating system, Information about other identifiers assigned to the device, The IP address from which the device accesses a client's website or mobile application, Information about the user's activity on that device, including web pages and mobile apps visited or used, Information about the geographic location of the device when it accesses a website or mobile application. Lv 5. This article first appeared on Curiosity.com. But when you start to look at all of the things that have come together in just the perfect way to support plants and animals, it gets a little mind-boggling. 9 Things That Make Earth the Perfect Place for Life, 9 STEM Projects that Make At-Home Learning Fun, Lowell Observatory Astronomers Celebrate Hubble, The Coronavirus: What You Need to Know About the Virus, Scientists Have Discovered Enormous Balloon-Like Structures in the Center of Our Galaxy, July in the Sky: Celestial Events Happening This Month, Check Out the Crab Nebula –The Leftovers from a Giant Cosmic Firework, Survival Chemistry: The Ingredients for Life on Earth, some biologists think life began in tidal pools. Three cheers for the Hubble! What happens when animals evolve in isolation? Earth is a planet where all forms of life exist; from basic living micro-organisms to highly sophisticated and intelligent human beings. But while it looks pretty from afar, don’t give in to the temptation to visit it up close. Here's an (incomplete) roundup: These are just a few of the items on the long list of features that make Earth more habitable than the average planet. In general, gas giants tend to clump up near their home stars. It's not too surprising that the Earth is so hospitable to life — we would never have evolved enough to wonder about it if it weren't. These three bears can make do with some very cold porridge. Weird & Wacky, Copyright © 2020 HowStuffWorks, a division of InfoSpace Holdings, LLC, a System1 Company. Oxygen, hydrogen, carbon, and a few other elements from the periodic table make up 99% of our bodies. "Is Earth one of a kind?" It has high extinction rates C. It has water in liquid form D. It makes photosynthesis possible 1 See answer mejoy16 is waiting for your help. (Aug. 9, 2010) http://www.astronomy.com/asy/default.aspx?c=i&id=467. Gas-giant neighbors: Sure, the sun and moon are great, but there's another soldier on the battlefield to help make Earth habitable: Jupiter.