At the bottom of the chart are the fundamental particles—quarks, bosons (eg Higgs, w +, w -, z ), protons, neutrons, ...

This view of the universe fits with the currently popular idea that the universe began with a vast expansion of size. The idea describes a kind of undirected energy present in the vacuum of space ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous — and highly debated ...

We know that some objects are closer to the Earth than others and that enormous distances separate us from other objects in the universe. As we gather information from the farthest reaches of the ...