Happy eclipse day! Here’s a guide to the 2023 “Ring of Fire” annular eclipse, which begins at 11:04 a.m. EDT on Saturday, Oct. 14. We’ve included details in this article on the best places to see the ...

The amazing skyward spectacles continue. We've seen a lot of cool things in the heavens lately, whether it's the Northern Lights, eclipses, meteor showers or planetary alignments. It's time to add ...

Lee, Tsung-Han, Nicola Lanatà, and Gabriel Kotliar. "Accuracy of ghost rotationally invariant slave-boson and dynamical mean field theory as a function of the impurity-model bath size." Phys. Rev. B ...

The spherically averaged (total) power spectrum of 21 cm brightness fluctuations. The power spectra are shown as a function of k during the dark ages at z = [150, 125, 75, 50, 40, 30]. The dotted ...

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