Speed of light is 299.792 km/s, or 299.792.458m/s. You got it wrong by a zero, wich mean you killed everyone on the generation spaceship.
They first need to work on a spaceship that could get us into space safely. Speeding across space, is much more difficult when you cant even get step #1 which is getting into space safely.
I am optimistic that we could do such things some day but just not now. Which system are we talking about by the way? TRAPPIST-1 maybe? There is well over 2000 confirmed alien planets orbiting other stars that have been discovered by NASA so far. Examples of a few which we can regard as being habitable include these. Proxima Cen b has become the most likely first target for any future interstellar space missions since it orbits the closest star to our own.
Levará muito tempo para a humanidade desenvolver uma nave espacial ou algum meio de saltar para o espaço para chegar a esses planetas.
I think the opening post was talking about Trappist-1 as that is the latest one to be discovered and is in the news recently. Yea i am also pretty optimistic we can travel space safely and far distances. Hopefully it will happen in my lifetime, but i am not too optimistic about that.
thats why i ask this. galaxies sometimes meet n therefore new planets can be seen that previously can not.
Unfortunately, Proxima Cen B may not be suitable. Its habitability has come into question, because it may be TOO close to its star. Previously we've defined "habitable planets" by whether or not they could hold liquid water, and this depended on whether or not that planet orbited a specific distance away from its host star. We didn't account for the solar wind the star gives off, and how that could strip away much of the planet's atmosphere; and because Proxima Cen is a Red Dwarf, Proxima Cen B needs to be much closer to hold liquid water, and may end up exposed to much more solar wind. There's a potential that, after we cross the 4 lightyears to get to Proxima Cen, that the planet we hoped to inhabit would be a barren hellhole without an atmosphere.
Your speed of light is wrong Your speed of sound is wrong. The concept of speed of sound in a vacuum doesn't exist. It is nonsensical scientifically.
In a few millennia or megania, we'll be able to travel there even without achieving FTL (which is not impossible; photon entanglement for one). Discovering planets is a very important job. Stop disparaging NASA