TechnologyNASA’s TESS exoplanet hunter found its first Earth-size planet, but you wouldn’t want to visit
One of the earliest exoplanet discoveries was just confirmed after a decade
When it comes to searching for objects outside of our own solar system, sometimes things aren't always as they first appear. NASA’s Kepler space telescope spent its almost-decade in space searching for distant worlds never before seen by mankind. It found plenty, but some discoveries were easier to verify than others, and the very first exoplanet ever detected by Kepler has only just been confirmed. require(["medianetNativeAdOnArticle"], function (medianetNativeAdOnArticle)
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NASA ' s TESS exoplanet hunting telescope has been on the job for less than a year, but it's already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
NASA ' s TESS exoplanet hunting telescope has been on the job for less than a year, but it's already racking up some impressive discoveries. Following the announcement of a new "Hot Saturn" back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar.
© Provided by Penske Media Corporation lsp_tess_image NASA’s TESS exoplanet-hunting telescope has been on the job for less than a year, but it’s already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth-sized planet outside of our solar system.
TESS — which stands for Transiting Exoplanet Survey Satellite — is designed to detect the telltale signs of exoplanets orbiting the stars it observes by spotting the tiny changes in brightness associated with a planet passing in front of them. This latest observation is actually the 10th confirmed planet TESS has discovered, but it’s the first one that is likely close to Earth in overall size. Still, you definitely wouldn’t want to go there.
Exploring the weird world of exoplanets
As we come close to identifying the 4,000th exoplanet, we look at the most extraordinary ones discovered so far.
NASA ’ s TESS exoplanet - hunting telescope has been on the job for less than a year, but it’s already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
NASA ’ s TESS exoplanet - hunting telescope has been on the job for less than a year, but it’s already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
The Earth-sized planet, called HD 21749c, is estimated to be around 89% as large as Earth, and it orbits a star that is roughly 70% as massive as our Sun. However, very little about the relationship between the planet and its star is Earth-like. The discovery is described in detail in a new paper published in Astrophysical Journal Letters.
Related slideshow: Distant planets (Provided by Reuters)
A year on the planet lasts less than eight Earth days, suggesting that it’s incredibly close to the star. That close relationship means that HD 21749c is absolutely scorching hot, and researchers estimate that its surface is probably around 800 degrees Fahrenheit, or around 427 degrees Celsius.
The planet and its star aren’t particularly far away. HD 21749 is thought to be only around 53 light-years away, meaning that it may be possible to study it and its piping hot planet in even greater detail.
HD 21749c isn’t the kind of place where we’d ever expect to find life as we know it, so alien hunters will need to look elsewhere, but the discovery of any planet outside of our solar system is still undeniably interesting. Going forward, new exoplanet discoveries by TESS are expected to continue, so it might not be long before NASA find a world even more like our own.
Life on Mars: the surface of the red planet could be much more dangerous than we thought
In an article published in early June in the journal Scientific Reports , teams of researchers at the University of Edinburgh, in Scotland , unveil the results of their study on the surface of Mars, so toxic that no cell or bacteria can survive there for more than a minute.
© Blandine, übergizmo (FR) Researchers have simulated the conditions of life on the red planet, taking into consideration both the very thin atmosphere of Mars, which lets through a wide spectrum of ultraviolet, and the presence of several perchlorates on the surface of the planet . The result ? A highly toxic cocktail .
Perchlorates are salts, present everywhere in the Martian soil. Containing chlorine, oxygen, magnesium, or sodium, they allow the presence of liquid water on Mars, transforming it into brine, and at the same time prevent any form of life from occurring. develop on the surface. If the presence of this water represented a hope to see a form of life on the surface of Mars, this hope has now gone up in smoke by the presence of these salts, whose combined effect with UV prevents the survival of any form of bacteria.
Even exposing bacteria to UV only, they did not last longer than one minute.
"Although the toxic effects of oxidants on the Martian surface have been suspected for some time, our observations show that the surface of Mars today is highly deleterious to cells, because of a toxic cocktail of oxidants, iron oxides, perchlorates and UV irradiation.
In itself, this is not 'bad' news: it simply means that one may have to search beneath the surface of Mars to hope to find a form of life. It also means, and this is good news, that there is no risk of contaminating the planet with the bacterium Bacilia subitilis, which tends to follow the rovers that humans send to the red planet.
18 Earth-size planets found in our galaxy—all hiding in plain sight.
And a hundred more small worlds may be awaiting discovery, astronomers predict, thanks to a new method for combing through NASA data.
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NASA ' s TESS exoplanet hunting telescope has been on the job for less than a year, but it's already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
NASA ’ s TESS exoplanet hunter found its first Earth - size planetNASA ' s TESS exoplanet hunting telescope has been on the job for less than a year, but it's already racking up some impressive discoveries. Following the announcement of a new "Hot Saturn" back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar.
Technology: NASA ’ s TESS exoplanet hunter found its firstNASA ’ s TESS exoplanet - hunting telescope has been on the job for less than a year, but it’s already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
Technology: NASA ’ s TESS exoplanet hunter found its firstNASA ’ s TESS exoplanet - hunting telescope has been on the job for less than a year, but it’s already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
NASA ’ s TESS exoplanet hunter found its first Earth - size planetNASA ’ s TESS exoplanet hunting telescope has been on the job for less than a year, but it’s already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
Tech & Science: NASA ’ s TESS exoplanet hunter found its firstNASA ’ s TESS exoplanet - hunting telescope has been on the job for less than a year, but it’s already racking up some impressive discoveries. Following the announcement of a new “Hot Saturn” back in March, NASA just revealed that TESS found its first Earth - sized planet outside of our solar system.
Discovery Alert: TESS Finds Its First Earth - Sized Planet – ExoplanetNASA ’ s Transiting Exoplanet Survey Satellite ( TESS ) has discovered its first Earth - size world. This is an artist's conception of HD 21749c, the first Earth - sized planet found by NASA ' s Transiting Exoplanets Survey Satellite ( TESS ) For more updates about TESS discoveries, visit nasa .gov/ tess .
NASA ' s exoplanet - hunting TESS has found its first Earth - sizedLast year, NASA launched its latest planet -scanning probe, known as the Transiting Exoplanet Survey Satellite ( TESS ). as the name suggests, the TESS ' primary mission is to discover Almost a full year after the start of its mission, the TESS has finally found its first Earth - sized exoplanet : HD21749c.
TESS finds its first Earth - sized planetA nearby system hosts the first Earth - sized planet discovered by NASA ' s Transiting Exoplanets Survey Satellite, as well as a warm sub-Neptune-sized world, according to a new paper from a team of astronomers that includes Carnegie's Johanna Teske, Paul Butler, Steve Shectman, Jeff Crane
TESS : NASA ' s Exoplanet Hunter | Space | Planet - hunting toolsThe Transiting Exoplanet Survey Satellite ( TESS ) is a NASA mission that looks for planets orbiting Space is supported by its audience. When you purchase through links on our site, we may earn an affiliate The first planet candidate find by TESS in September 2018 was a spectacular evaporating
