How old is the Solar System? That is a question that cuts to the heart of it all. By studying several things, mostly meteorites, and using radioactive dating techniques, specifically looking at daughter isotopes, scientists have determined that the Solar System is 4.6 billion years old.

How do we know how old other planets are?

To find your age on the outer planets (Jupiter, Saturn, Uranus, Neptune, and Pluto), divide your age in Earth years by the approximate length of the planets year in Earth years. This is your “new” age. For example, a 20 year old on Earth would only be 1.7 years old on Jupiter because 20 / 12 = 1.7.

How do we know the sun is 4.5 billion years old?

There are several independent ways of estimating the age and they all give nearly the same answer: about 5 billion years. The age of the Sun can be estimated from the ages obtained from radioactive dating of the oldest meteorites.

How long will our universe last?

22 billion years in the future is the earliest possible end of the Universe in the Big Rip scenario, assuming a model of dark energy with w = −1.5. False vacuum decay may occur in 20 to 30 billion years if Higgs boson field is metastable.

What Earth are we in?

Earth-616 is generally referred to as “our” universe.

Can we live on Pluto?

It is irrelevant that Plutos surface temperature is extremely low, because any internal ocean would be warm enough for life. This could not be life depending on sunlight for its energy, like most life on Earth, and it would have to survive on the probably very meagre chemical energy available within Pluto.