We have known for several decades that the universe is expanding. Scientists use multiple techniques to measure the present-day expansion rate of the universe, known as the Hubble constant. These ...
A physical phenomenon called quantum tunnelling is rare in chemical reactions, making it difficult to study theoretically and experimentally. The measurement of the tunnelling rate in a hydrogen ...
A recent study published in Astronomy & Astrophysics has provided the most accurate measurement of the universe’s expansion rate, a discovery that not only refines our understanding of cosmology but ...