I believe the term "habitable" for NASA is defined as "...the range of distances where conditions may be just right to allow the presence of liquid water on the surface." I'm not sure of all the...
I believe the term "habitable" for NASA is defined as "...the range of distances where conditions may be just right to allow the presence of liquid water on the surface."
I'm not sure of all the reasons for picking that particular criteria, but a brief look at https://en.wikipedia.org/wiki/Planetary_habitability leads me to think that having liquid water is one of the necessary requirements for organic life to arise (either naturally or transferred from elsewhere initially).
Well color me interested. It will be fascinating to find out what kind of atmosphere it has.
One simulation included an ocean-covered TOI 700 d with a dense, carbon-dioxide-dominated atmosphere similar to what scientists suspect surrounded Mars when it was young. The model atmosphere contains a deep layer of clouds on the star-facing side. Another model depicts TOI 700 d as a cloudless, all-land version of modern Earth, where winds flow away from the night side of the planet and converge on the point directly facing the star.
When starlight passes through a planet’s atmosphere, it interacts with molecules like carbon dioxide and nitrogen to produce distinct signals, called spectral lines. The modeling team, led by Gabrielle Engelmann-Suissa, a Universities Space Research Association visiting research assistant at Goddard, produced simulated spectra for the 20 modeled versions of TOI 700 d.
“Someday, when we have real spectra from TOI 700 d, we can backtrack, match them to the closest simulated spectrum, and then match that to a model,” Engelmann-Suissa said. “It’s exciting because no matter what we find out about the planet, it’s going to look completely different from what we have here on Earth.”
Well color me interested. It will be fascinating to find out what kind of atmosphere it has.
TOI 700 d is tidally locked to its star. Call me ethnocentric, but that doesn't sound very habitable to me.
You're probably looking for "geocentric". "Ethnocentric" is "centered around nations/peoples".
I believe the term "habitable" for NASA is defined as "...the range of distances where conditions may be just right to allow the presence of liquid water on the surface."
I'm not sure of all the reasons for picking that particular criteria, but a brief look at https://en.wikipedia.org/wiki/Planetary_habitability leads me to think that having liquid water is one of the necessary requirements for organic life to arise (either naturally or transferred from elsewhere initially).
Well color me interested. It will be fascinating to find out what kind of atmosphere it has.