World Sep 18, 2019

Russia to give cosmonauts guns to fend off animals on landing

Russia is testing a gun that returning cosmonauts could use to fend off wild animals when landing in remote areas, the head of the Russian space agency said Wednesday. Cosmonauts have been unarmed for more than a decade but Roscosmos agency head Dmitry Rogozin said ...

New method attempts to gauge expansion of universe

World / Science & Health Sep 13, 2019

New method attempts to gauge expansion of universe

Scientists have known for decades that the universe is expanding, but research in the past few years has shaken up calculations on the speed of growth — raising tricky questions about theories of the cosmos. The rate of expansion — known as the "Hubble constant" ...