Aging is accelerated the higher you go above the Earth's center of gravity. It is a part of Einsteins theory of relativity. You age less on planets with more gravity, so on Venus you would age less than you do on Earth.

In actuality NASA has confirmed that there are AT LEAST 70 SEXTILLION STARS or 70,000,000,000,000,000,000,000 STARS. There are 200 billion to 400 billion stars in our Milky Way Galaxy alone and there are one trillion stars in our closest large galaxy called the Andromeda Galaxy. An average galaxy has hundreds of billions of stars and there are about 100 billion galaxies in the observable universe. There are also many intergalactic stars that don't belong to a galaxies. There are probably much more than 70 sextillion stars in the Universe but if light from a Star hasn't traveled to Earth, or if the Star is too dim, or just not seen it can't be counted. Also we can only see part of the Universe because the Universe can only show light that has traveled less than 13.7 billion light years to reach us. It is hard for astronomers to find extrasolar planets because they are so small and far away but if moons and planets are as common around every star as they are around our Sun, then there should be decillions, 10^33, or planets in our observable Universe alone. Many galaxies have trillions of stars like the Sombrero Galaxy, yeah I know weird name but true, which is 28 million light years away. I would say that intelligent life would exist all over but scientists usually think that there is no life except for Earth because SETI has not spotted any life and its been up for 40 years.