Gravity, one of the four fundamental forces of nature, appears reassuringly constant across the universe, according to a decades-long study of a distant pulsar. This research helps to answer a ...

If you’re confused by modern cosmology, you’re not alone. Cosmologists themselves are confused, and two new results, using very different methods, add to their collective bewilderment. The results are ...

The Hubble constant (H₀) quantifies the current expansion rate of the Universe and underlies estimates of its age, size and fate. Determinations of H₀ rest on two broad approaches: local ...

July Celebration to Mark 10th Anniversary of Gruber International Prize Program, Which Began with Cosmology Prize June 3, 2009, New York, New York — The recipients of the 2009 Cosmology Prize of the ...