As D H indictated, it would take current spacecraft millions of years to get there (~600-620 ly).tinypositrons said:People are saying that Kepler 22b looks like it may harbour life. How could we ever know? I was just wandering, but what would the delta v be to do a Hoffmann transfer (if this works on an interstellar scale) to Kepler 22b?
Kepler 22b is an exoplanet, or a planet that is located outside of our solar system. It was discovered by NASA's Kepler Space Telescope in 2011 and is located about 600 light years away from Earth.
Kepler 22b is in the habitable zone of its star, which means it is at a distance that allows liquid water to exist on its surface. It also has a similar size and mass to Earth, and its star is similar to our Sun. These factors make it a potential candidate for hosting life.
Scientists use various methods to study Kepler 22b, including analyzing data from the Kepler Space Telescope, studying its orbit and characteristics, and using computer simulations to understand its potential habitability.
Scientists have discovered that Kepler 22b is about 2.4 times the size of Earth and has a year of about 290 days. They have also found that its star, Kepler 22, is slightly smaller and cooler than our Sun.
With current technology, it would take thousands of years to reach Kepler 22b. However, scientists are constantly working on new technologies and methods that could potentially shorten the travel time in the future.