Our journey to comprehend the Universe’s edge begins with the concept of the observable Universe. This term refers to the ...

After a century of observations spanning the breadth of the cosmos and theoretical insights that push humanity's vision of the universe to its utmost limits, we can finally, confidently say that the ...

Thinking about the edge of the universe is one of those ideas that fascinates pretty much everyone. We can map […] ...

Many astronomers have wondered where the center of the universe is. If the Big Bang created the entire observable universe, then it stands to reason that the event had a point of origin. As it turns ...

In this paper I revisit proposed definitions of the boundary between the Earth’s atmosphere and outer space, considering orbital and suborbital trajectories used by space vehicles. In particular, I ...

A century ago, Edwin Hubble began the race to the edge of the cosmos Damond Benningfield In 1930, Albert Einstein met with astronomers (including Edwin Hubble, at Einstein's left, back row) at Mount ...

With the increasing power of telescopes and computers, cosmologists today are pushing the boundaries of human knowledge about the universe, seeing further and simulating more accurately that ever ...