The Atacama Cosmology Telescope (ACT) team has captured the clearest images of the universe in its earliest stages—when it ...

New research by the Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe’s ...

President Trump abruptly stopped providing foreign aid. He says it is a waste of taxpayer money. Critics say his move will cause a humanitarian catastrophe and hurt the United States. What do you ...

The state of things at that time is physically imprinted onto the distribution of neutrinos we see today on the celestial dome, a nearly undetectable cosmic neutrino background. Nucleosynthesis ...

The temperature depends on the volume and heat capacity of the system. For a fission bomb’s fireball, temperatures reach 10⁷-10⁸ K (10-100 million K) momentarily, driven by radiation and kinetic ...