Complex sentence: Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE) measures the heating of the universe by the first stars and galaxies after the big bang.
Split into simpler sentences: Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE). Measures the heating of the universe by the first stars and galaxies after the big bang.