Half a century ago, astronomers got their first look at the infant universe: a haze of soft light that suffused the entire sky. This cosmic microwave background (CMB) radiation seemed to indicate that ...

There's a widely reported claim that you can't heat something hotter than the sun using sunlight: https://what-if.xkcd.com/145/ The idea seems to be that no (passive ...

The Cosmic Microwave Background (CMB) exhibits a black body spectrum with a temperature of 2.725 Kelvin, consistent with the prediction of thermal equilibrium in the early universe. This black body ...

THE discovery of cosmic blackbody radiation with a temperature of 2.7 K is widely considered as powerful evidence for the hot, big-bang model of the universe. As first discussed by Gamow, it is ...

The Science Teacher is an award-winning, peer-reviewed, practitioners' journal for grade 9-12 teachers, university faculty responsible for teacher preparation, and state and district science ...

The cosmic microwave background (CMB) has a perfect black-body spectrum with a temperature of 2.73 kelvin. But this temperature varies very slightly at different points in the sky, and this ...

Scientists haven’t rigorously tested the cosmic microwave background for a revealing shift in 25 years. A new experiment aims to change that. Half a century ago, astronomers got their first look at ...