cosmology

Two entirely different ways of "weighing" the cosmos are producing disparate results. The discrepancy could be a sign that physicists will need to revise the standard model of cosmology.

Right now, key measurements of the universe's expansion are contradicting each other. A lost form of dark matter could help them agree.

In the beginning, it was just the Large Space Telescope, its mundane name a marker of how very extraordinary an observatory it was.

The bubble concept could explain one of the strangest mysteries plaguing astrophysics: Why can't we tell how fast the universe is expanding?

The five main string-theory candidates may all just be pieces of a larger, cohesive whole — and M-theory could bring them together.

This is a radical new design compared to the world's most sensitive gravitational wave detectors.

It was a big moment for our cosmos when the first stars awoke, but it's an elusive one for scientists.

NASA's quest to return humans to the moon could boost a field of research that might not seem particularly lunar in nature: cosmology.

Everyone seems to want to go to the moon. Before they get there, though, radio astronomers would like them to think about what wavelengths they use to light the way.

The cracks, if they exist, are old, remnants of a time shortly after the Big Bang.