Ballooning for comets

The Balloon Observation Platform for Planetary Science (BOPPS) is a high-altitude, stratospheric balloon mission that is planned for launch today to study a number of objects in our solar system, including an Oort cloud comet….

Lofting to space

If you’re asked to picture in your mind a “launch vehicle,” what most likely pops up is a picture of a conventional rocket, lifting off vertically from a launch pad using rocket engines powered by…