Does space make you age slower?

That’s because space-time isn’t flat — it’s curved, and it can be warped by matter and energy. And for astronauts on the International Space Station, that means they get to age just a tiny bit slower than people on Earth. That’s because of time-dilation effects.

Does going to space make you younger?

Scientists have recently observed for the first time that, on an epigenetic level, astronauts age more slowly during long-term simulated space travel than they would have if their feet had been planted on Planet Earth.

Will humans age differently on other planets?

If we were to live on another planet in the Solar System our age would be different because each planet takes a different amount of time to orbit the Sun. In other words each planet has a different year length. Solar day is the time of rotation of the Earth relative to the Sun.

How old are galaxies in the universe?

Most galaxies are between 10 billion and 13.6 billion years old. Our universe is about 13.8 billion years old, so most galaxies formed when the universe was quite young! Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old.

Why are the ages of the planets in the boxes different?

The axis rotation speed across the planets varies and this is why the ages in the boxes above are different. The speed at which a planet rotates on its axis is determined by a number of complex factors, including how fast the original matter was “spinning” when the planets were formed 4.5 billion years ago.

Is there a link between shape and age in galaxies?

We’ve known for a long time that shape and age are linked in very extreme galaxies—that is, very flat ones and very round ones. But this is the first time we have shown this is true for all kinds of galaxies—all shapes, all ages, all masses.

How can you tell if a galaxy is young or old?

Young galaxies have a large fraction of recently formed hot blue stars, whereas old galaxies mostly contain colder red stars formed shortly after the Big Bang. Spectroscopy—splitting the light from a galaxy into many different colours—allows us to measure the average age of stars in a galaxy.