We know that we live on a planet in a solar system in a galaxy in a group of galaxies. But what do we know about our location in the universe beyond that? Some astronomers would answer that we live in ...

Imagine visiting a far distant galaxy and addressing a postcard to your loved ones back home. You might begin with your house on your street in your hometown, somewhere on Earth, the third planet from ...

The name fits so well - Laniakea. It means 'immense heaven' in Hawaiian, and now it's home. In the biggest sense of 'big picture' you can imagine. Astronomers using the National Science Foundation's ...

A team of astronomers from Maryland, Hawaii, Israel and France has produced the most detailed map ever of the orbits of galaxies in our extended local neighborhood, showing the past motions of almost ...

The supercluster of galaxies that includes the Milky Way is 100 times bigger in volume and mass than previously thought, a team of astronomers says. They have mapped the enormous region and given it ...

The directions toward which the Sun and our galaxy are moving in space change rapidly, with increasing distance of the galaxies used as a reference frame. This effect, which is a manifestation of the ...

When I was a kid, playing with my fellow nerdlings, we used to try to come up with the most specific address we could for ourselves—including the whole Universe. It would go something like this: “Phil ...

A new study has revealed that our Milky Way is a member of a group of local galaxies interconnected within a larger supercluster made up of a myriad of other galaxies, all interlinked within a tenuous ...