Everything that Alex said but he didn't touch on some of the implications. The expansive force is increasing space at a rate equivalent to a speed greater than the speed of light. That means we're living in a curious time when we're lucky enough to still be able to detect other galaxies. There will come a time when conglomerations of matter will be so far apart, an observer in one would see no others. Cosmology would be all but impossible. This will happen long before the heat death of the universe, too.
In related matters, the latest experiments to discover the Inflaton, the elusive particle predicted to be responsible for universal inflation, have failed so utterly as to rubbish all predictions. The Inflaton, if it exists at all, is nothing like it needs to be to make our current models work. That means our current models reliant on its existence are probably utterly wrong.
In related matters, the latest experiments to discover the Inflaton, the elusive particle predicted to be responsible for universal inflation, have failed so utterly as to rubbish all predictions. The Inflaton, if it exists at all, is nothing like it needs to be to make our current models work. That means our current models reliant on its existence are probably utterly wrong.
