https://padlet.com/22379151/ny11wra2qui2jsvt Created by Alan Ashkin en-us 2022-04-19 15:52:20 UTC 2025-10-30 16:30:05 UTC hello@padlet.com 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163713942 Uncertainty allows scientists to signify how confident they are in their conclusion. The purpose of this scale is to allow scientists to give their own opinion on the conclusion's reliability, as a study may suggest but not always prove something, and the uncertainty scale allows scientists to emphasize this. This is especially important in the field of science, where studies are used to determine important, practical decisions.]]> 2022-04-29 03:38:15 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163713942 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163726806 I learned that there is a measurable "habitable zone" scientists have created to determine potential candidates for colonization. This zone is defined by a planet's distance from its nearest star; a candidate planet's water should stay liquid, and this zone shows the area where water will do so. I also learned that an ideal planet is one that is the size of Earth as well. But, indirectly, one of the most important things I learned from this activity is the deficit of information that scientists have to deal with. What if the planet is burning hot? What if the planet barely rotates? What if there is no water? What if the atmosphere is deadly poison? Scientists cannot confirm these things.]]> 2022-04-29 03:52:05 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163726806 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163731923 Unlike stars, planets are non-luminescent and relatively small, so they are hard to detect, but there are at least two methods scientists can use to ascertain the presence of planets.
1. Doppler technique: Measures how much a star wobbles in response to the gravity of the planet orbiting it.
2. Transit method: Measures whether or not a star's relative light levels change periodically. If so, a planet may be passing in front of said star and orbiting it.]]> 2022-04-29 03:58:01 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163731923 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163737757 If a planet should already harbor life, it needs to have 3 things: An appropriate energy source, such as the Sun and the core of the Earth in our case; An atmosphere, and, subsequentally, the mass and gravity to hold an atmosphere, as scientists believe that it they are requirements for a planet to hold water; and an abundance of carbon, hydrogen, oxygen, phosphorous, nitrogen, and sulfur, for those are the fundamental building blocks of life here on Earth.]]> 2022-04-29 04:04:40 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163737757 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163739066 Extremophiles are creatures that live in extreme, seemingly unlivable environments. Scientists speculate the possibility of extremophile aliens.]]> 2022-04-29 04:06:11 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2163739066 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2169435242 Measuring the velocity and light intensity of stars can only go so far. When viewing an orbit from top-down, these values simply don't fluctuate. Furthermore, a planet the size of Earth would not affect these values. Using this method, certain planets are invisible.]]> 2022-05-04 05:51:13 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2169435242 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2169443403 A star's habitable zone (or "Goldilocks Zone") is affected by its luminosity and temperature.]]> 2022-05-04 06:01:07 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2169443403 22379151 https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2169452908 K-, G-, and F-Type stars could have habitable planets.]]> 2022-05-04 06:13:31 UTC https://padlet.com/22379151/ny11wra2qui2jsvt/wish/2169452908