Pi, a mathematical constant denoted by the Greek letter π ... The earliest recorded use of the Greek symbol π comes not from Greek antiquity but from 1706, when Welsh mathematician William ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

Cosmological data indicate that the universe has become more complex over its 13.8 billion-year history, with matter distribution appearing less clumpy than expected.

A cosmic filament, 3 million light-years long, has been directly imaged for the first time — offering a new glimpse into the ...

A new way to study 3D maps of galaxies in the cosmos without compressing the data is revealing new information about the dark universe. Hidden information in maps of galaxies spread across the ...

Noah Sailer et al, Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6, arXiv (2024). DOI: 10.48550/arxiv.2407.04607 ...

Mathematical equations have shaped our understanding of the universe, and these nine have played a key role in changing the world.

Sadly, a need for constant attention often makes it hard to maintain a decent, drama-free relationship. Worried that the man you’re seeing constantly needs female attention and validation?

Data from the XRISM X-ray satellite provide unprecedented detail on how ionized plasma moves in massive galaxy clusters — a question with huge cosmological and astrophysical implications.