Experience the luxury of Lufthansa First Class as I arrive at Frankfurt from Dubai on the B747-400. After a private transfer in a Porsche Panamera, I enjoy exclusive access to the Lufthansa First ...

Twenty years after the introduction of the theory, we revisit what it does—and doesn’t—explain. by Clayton M. Christensen, Michael E. Raynor and Rory McDonald Please enjoy this HBR Classic. Clayton M.

Transitional kindergarten is a publicly funded pre-kindergarten year for California students who turn 5 in the first few months of the school year. Elementary schools are required to offer ...

Oct. 2, 2025 — Fresh analysis of Cassini data has revealed new complex organic molecules inside ice grains spewing from Enceladus. These discoveries strengthen the case that the moon’s underground ...