Skip to main content

The first habitable-zone Earth-sized planet has found by TESS

A schematic of the planets around the nearby M dwarf star TOI-700, discovered



The first habitable-zone Earth-sized planet has found by TESS


The first habitable-zone Earth-sized planet has found by TESS ( Transiting Exoplanet Survey Satellite) has been found the Earth-sized exoplanet at the habitable zone of the star. The star is an M-type star, what surface temperature is about 3000 kelvin and that means the planet is locked, and it turns always the same side to the star. The name of the planet is TOI-700d, and the planet is a potential host for life. So the name of the star is TOI-700 and there are three planets. The surface temperature of TOI-700d is about 268 kelvin (-5,5 C).

If there is liquid water on the surface of that planet, it would create clouds, what might keep its surface temperature lower at the dayside, and if there is an atmosphere, what is another requirement for the life, that means that the cold nightside will cool the temperature of the planet. So there is a possibility that the planet is hosting some kind of lifeforms. 

When we are thinking about the M-type dwarfs the planets of their habitable zone are locked. The M-type stars are also flare-stars, which means that they are erupting sometimes very hard. But the fact is that those planets that are hosting life should have an atmosphere, liquid water, and magnetic field. 

So the clouds that are rising from the water are cooling the dayside. And the freezing nightside can keep the temperature of that planet lower. The last thing is that the magnetic field would also push the particles coming from the star away from the surface of that planet. The flares of the flare stars are seeming impressive, but the eruptions are not lasting a very long time. And the surface temperature of the star is very low, so we cannot just copy the data of the Sun to that star and its planets. 


https://phys.org/news/2020-10-habitable-zone-earth-sized-planet-exoplanet-survey.html

TOI-700d: https://en.wikipedia.org/wiki/TOI_700_d

Image: https://phys.org/news/2020-10-habitable-zone-earth-sized-planet-exoplanet-survey.html

Comments

Post a Comment

Popular posts from this blog

Antimatter motor

Antimatter motor Antimatter would be an effective fuel for interstellar spacecraft Antimatter would be the most effective power source in the world. It will be the most suitable motor for interstellar spacecraft, but the problem is that thing is very reactive. And actually one of the biggest problems with this kind of motor is that the gram of antimatter would turn the entire planet to the molecular nebula. So this kind of motor can produce only outside of our solar system. Producing antimatter would need large particle accelerators, and that kind of systems might look like giant donuts, what is floating on the space. There are two ways to create the antimatter motor, one is to store the anti-ions in the magnetic bottle, where the pushing magnetic field will keep those ions away from the wall of the bottle, and then the antimatter would conduct to the water or some other particle. The huge explosion or annihilation reaction would send the rocket to a very high speed. The antimatt...
Post a Comment
Read more

Could this be the thing, that some people don't want you to know about zombies?

Could this be the thing, that some people don't want you to know about zombies? The simplest way to control zombies, which are made by using tetrodotoxin, which is called "zombie poison" is to use the automatic dispenser, which is normally used in diabetes treatment. In this case, the dispenser would be loaded by using tetrodotoxin. If the level of this poison is right, the person would be totally under the control of other people. And if the system cannot detect this poison there is a possibility to make the laboratory experiment when the staff will follow the decrease of the tetrodotoxin, and then the system can use a simple clock, which will inject poison to the body of a victim after a certain time. This would be an effective tool in the hands of military and counter-terror operators. Those zombies can be captured enemy operators, who will send back, and then they just kill their ex-partners. By using genetically engineered bacteria could be possible to create t...
Post a Comment
Read more

The cyborg lichen can be one of the most exotic visions of what the high-tech civilization might look like.

.     The cyborg lichen can be one of the most exotic visions of what the high-tech civilization might look like. Above is the image of the nano-submarine. There is introduced an idea, that this kind of system would equip with living neurons, which makes it like some kind of artificial bug or mosquito. The idea is that the robot can take the nutrient by using the robot tube, which acts like a proboscis. The neurons can get nutrients and the rest of the machine can use small fuel cells or the energy to that system can deliver by using the radio waves. Futurologists are thinking about the ideas, what the hybridization of the neurons and machine would look like? Could the hyper-technical civilization look like the group of midget submarines? Those submarines might take nutrients for the neurons, what is living in them. The purpose of the midget submarines, which might be size less than a couple of millimeters would maximize the survivability of the neurons. One of the most intere...
Post a Comment
Read more