Even most rocket scientists would rather avoid hard math when they don't have to do it. So when it comes to figuring out ...

Surprised astronomers just discovered a world that blurs the line between planet and stellar remnant, hiding in a system ...

Scientists describe the findings as unexpected and puzzling, making this discovery a milestone in exoplanet research.

Abstract: This article presents a hybrid controller to stabilize a class of closed orbits for mechanical systems with degree of underactuation one. The controller has a hierarchical structure, whereby ...