Life in the universe like a tree because you're always looking for a place to plant it you know plant it plant it okay settle down anyway water is the basis of life in any part of the universe so potentially inhabited planets must have liquid water on them to support life an incredible number of circumstances must come together for this the planet must be in the habitable zone of the star then the temperature and atmospheric pressure on the planet's surface will be suitable for simple life forms to begin to evolve a little closer to the star and the water will evaporate leaving no chance for oceans and seas to form.

1.Venus:

Venus has a size and mass similar to the Earth but it's too close to the sun and no life can exist on its surface too far from the star and the planet becomes too cold water can only exist in the form of ice on the surface and there just might be liquid water deep below.

2.Neptune:                                                      

Neptune is one example of this in addition the planet must be solid and have an atmosphere that protects it from solar radiation and allows living organisms to breathe in our galaxy alone there are countless stars really you can't count on them near each one of them may be a planet they're called ex planets and some of them may be in the habitable zone and have everything for life to form on them.


3.Kepler 1638b 

It's in the constellation cygnus about 3 000 light years away from us it belongs to the super earth class is twice as wide and four times as heavy as our home planet the gravity on it will feel much stronger even a normal jump will be much harder for you than on earth although if this planet is really inhabited local life is used to such conditions.

4.LHS 1140b                                                    

LHS 1140b this planet is very rocky and solid although its size is only 40 percent larger than the earth it's seven times as massive it has strong gravity of 3.25 gs for comparison when you take off on an airplane you experience an overload of about one and a half.

G's so on this planet you'd barely be able to stand on your feet because of its large mass this planet has a thicker atmosphere and because of the greenhouse effect its temperature can be above 19 degrees fahrenheit and it rotates around its star quite quickly it makes a full circle in just 24 days and now let's look at the constellation aquarius here's an ultra cold dwarf.

5.Trappist-1                                                    

Trappist-called warp field shouldn't be perfectly round as it was thought before it can be more donut shaped a this will greatly simplify the design and construction and will make it possible to test this technology on a spacecraft the size of a voyager 1 pro even though it still seems impossible scientists are already saying that there is hope and while we don't know what technology will be used in 2069 NASA plans to launch its first interstellar mission to explore potentially habitable planets outside of our solar system various rumors say that the speed of light can be achieved with laser technology if the probe is very small it can be launched to the alpha centuries star at almost the speed of light there are also two other alternatives to power spaceships these are nuclear energy and energy from matter and anti-matter collisions these technologies are still a mystery to humanity though well for the time being stay 
tuned.