Joel R. Primack

TL;DR: In this article, the relationship between morphology and star formation has been studied by using consistent SED fitting with flexible dust attenuation laws, and it was shown that the clumpy disk contribution to the star formation budget peaks at z ~ 1, rather than z ~ 2, suggesting that the principal epoch of disk assembly continues to lower redshift.

TL;DR: A working group associated with the Federation of American Scientists (FAS) and the Committee of Soviet Scientists for Peace and Against the Nuclear Threat (CSS) has been studying a proposed ban on orbiting reactors.

TL;DR: In this paper, the authors discuss the nature of the hot dark matter, which may consist of neutrinos with mass, and the one that best agrees with the data is a model in which the universe is made of 70% cold dark matter.

TL;DR: In this paper, the authors discuss the effects of these variations on the thermal evolution of an Earth-size planet, using a 1D parameterized convection model, and find that Earth had just enough radiogenic heating to maintain a persistent dynamo.

TL;DR: The cold dark matter (CDM) theory has become the standard modern theory of cosmological structure formation as discussed by the authors. But despite its many successes, there has been concern about CDM on small scales because of the possible contradiction between the linearly rising rotation curves observed in some dark-matter-dominated galaxies vs the $1/r$ density cusps at the centers of simulated CDM halos.