Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...

Every year, Santa Claus races around the globe in a matter of hours to bring presents to children all over the world.

We estimate income and taxes for the wealthiest group of US households by matching Forbes 400 data to the individual, business, estate, and gift tax returns of the corresponding group in 2010–2020. In ...

Learn how convexity adjustments in bonds affect interest rates and prices using key formulas. Understand their importance in accurately predicting bond price changes.

Gaia back-tracing points to 3 suspect star systems—G 137-55/54, AT Mic, and a G3V candidate. What fits, what fails.