Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

You know the Vitruvian Man. He’s perhaps second only to the Mona Lisa in terms of iconic imagery in Western history: a notebook sketch of a man in two positions, one standing straight and the other ...

We evaluate our Qwen2.5-Math base models on three widely used English math benchmarks GSM8K, Math, and MMLU-STEM. In addition, we also evaluate three Chinese math benchmarks CMATH, GaoKao Math Cloze, ...