(Nanowerk News) New work from the Carnegie Supernova Project provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding ...

NASA announced Thursday that its Hubble Space Telescope (HST) has calibrated more than 40 "milepost markers" of space and time. The mile markers help scientists measure the expansion rate of the ...

Determining distance is one of astronomy’s greatest challenges. For nearby objects, astronomers rely on parallax, which causes nearby stars to shift against the seemingly stationary background of more ...

A new study using data from NASA’s Chandra X-ray Observatory points to the origin of a famous supernova. This supernova, discovered in 1604 by Johannes Kepler, belongs to an important class of objects ...

New work provides the best-yet calibrations for using type Ia supernovae to measure cosmic distances, which has implications for our understanding of how fast the universe is expanding and the role ...