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Nasa news: HD 21749b similar to Earth found outside our solar system | Science | News

The planet, named HD 21749b, was discovered by the Transit Exoplanet Survey Satellite (TESS) and is around 53 light years from Earth. But the most interesting thing about the planet is its likeness to Earth. The star is a "sub-Neptune" and almost three times bigger than Earth making it more likely to be gaseous rather than rocky. Discovery team leader Diana Dragomir told MIT News: "We think this planet would be like gaseous as Neptune or Uranus, which is mostly hydrogen and really puffy. "The planet probably has an atmosphere composed of heavy molecules, such as water. " We know a lot about atmospheres or hot planets, but because it's very hard to find small planets that orbit farther from their stars, and are therefore cooler, we have not been able to learn much about these smaller, cooler planets. can now study it in more detail. ” READ MORE: ALIENS are 'ALMOST INEVITABLE' &#821 1; arrogant to say not claims expert The planet is the first to be found with the longest orbit at TESS HD 21749b journeys around its star in 36 days. Space expert Corey S Powell told Forbes: "What's most interesting about HD 21749b is precisely that it is not strange!" "It's just a little bigger and hotter than Earth, making it a prime test subject. " Truly Earthlike planets will be harder to study. "This planet will offer a great learning experience in how to find and examine a true Earth. " , and which ones…

The planet, named HD 21749b, was discovered by the Transit Exoplanet Survey Satellite (TESS) and is around 53 light years from Earth. But the most interesting thing about the planet is its likeness to Earth. The star is a “sub-Neptune” and almost three times bigger than Earth making it more likely to be gaseous rather than rocky.

Discovery team leader Diana Dragomir told MIT News: “We think this planet would be like gaseous as Neptune or Uranus, which is mostly hydrogen and really puffy.

“The planet probably has an atmosphere composed of heavy molecules, such as water.

” We know a lot about atmospheres or hot planets, but because it’s very hard to find small planets that orbit farther from their stars, and are therefore cooler, we have not been able to learn much about these smaller, cooler planets.

can now study it in more detail. ”

READ MORE: ALIENS are ‘ALMOST INEVITABLE’ &#821

1; arrogant to say not claims expert

The planet is the first to be found with the longest orbit at TESS

HD 21749b journeys around its star in 36 days.

Space expert Corey S Powell told Forbes: “What’s most interesting about HD 21749b is precisely that it is not strange!” “It’s just a little bigger and hotter than Earth, making it a prime test subject.

” Truly Earthlike planets will be harder to study.

“This planet will offer a great learning experience in how to find and examine a true Earth.

” , and which ones turn out to be harsh and inhospitable on closer examination.

“There is no equivalent planet in our solar system, and we don’t know much about what conditions might be like on such a world. Now we can find out! ”


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