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NASA TESS finds three new exoplanets

NASA TESS finds three new exoplanets
« on: 30 July , 2019, 17:50:24 pm »
Good afternoon,

I would like to start using this section of the forum so that we can talk about different topics and areas of science and technology. Besides our forum this is a great opportunity to keep investigating and developing our knowledge in the world of science, so I encourage everyone to post interesting information about science and technology here.  ;)

To open this topic, I will start by talking about a recent new I have just read about space, you might have heard about it because it has appeared in several articles at the MIT News, NASA News… The article’s title was this one: NASA’s MIT-led Transiting Exoplanet Survey Satellite has found three of the smallest and nearest known exoplanets.

I think the title is pretty exciting and interesting, I’ll leave the link at the end, now I will briefly explain what the article is about and what does this discovery mean for the science and space research community and for the whole world.

The discovery has been made by TESS, the NASA’s Transiting Exoplanet Survey Satellite, as I said, this satellite has found three new worlds that are among the nearest exoplanets known to date. One of them is a rocky Super-Earth and the other two are sub-Neptunes (this means they are around half of the side of the known Neptune). The three of them are situated in the TOI 270 system which has an M-type star that is 40% smaller than the sun, so its surface temperature is about one-third cooler that the Sun’s. It is situated just 73 light-years away.

But… what is the interesting thing about these new planets? The answer is quite simple: Their size. The most amazing aspect of this system and its planets is that their sizes are different from the ones we know. Fran Pozuelos, a researcher at the university of Liège in Beligium argued that it is pretty strange that planets are around 1,5 and 2 times bigger than Earth, this could be because of the way planets are created. That’s one of the reasons that makes this discovery so important, researchers will be able to study TOI 270 and understand how do planetary systems form and how do they develop.

I hope you find this information interesting, imagine what this discovery will mean… as the astrophysicist Maximilian Günther calls it:

“A true Disneyland for exoplanet science”

I will leave some links down here so that you can keep investigating if you are interested!
MIT NEWS: http://news.mit.edu/2019/tess-discovers-three-planets-nasa-0729
NASA NEWS : https://www.nasa.gov/feature/goddard/2019/nasa-s-tess-mission-scores-hat-trick-with-3-new-worlds
INFOGRAPHIC SHOWING TOI 270 AND KEY FEATURES: https://www.nasa.gov/sites/default/files/thumbnails/image/toi270_infographic.jpg
DESCRIPTION OF TOI 270: https://www.nature.com/articles/s41550-019-0845-5

Best regards,
Manuel Cortés (Spain)