Astronomy

Hind’s Variable Nebula

This emission nebula in the constellation Taurus the Bull, cataloged as NGC 1554/55, combines two objects in one. At least, it used to. Observers call NGC 1555 Hind’s Variable Nebula. They call NGC ...
Astronomy

How do Cepheid variables indicate distance?

Cepheid variable stars exhibit regular pulsations whose period directly correlates with their intrinsic brightness (absolute luminosity). The Leavitt law establishes this relationship between ...
Science Daily

Variable patient responses to SARS-CoV-2 infection are mimicked in genetically diverse mice

Researchers have created a panel of genetically diverse mice that accurately model the highly variable human response to SARS-CoV-2 infection. The team uncovered differences in the innate immune and ...
Scientific American

Progress of Astronomy and The Variable Stars

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
Scientific American

A New Algol Variable

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...