The second shadow in an eclipse is known as the penumbra (pronounced peh NUM bruh). This partial outer shadow is lighter than the umbra and gets larger as it goes away from the sun. Lunar ...

These new advancements, combined with Penumbra’s novel catheter technology, are expected to enable physicians to better navigate the body’s complex anatomy and deliver high power for clot ...

Penumbra's shares have surged again on renewed ... the former designed for modulated aspiration in the venous anatomy and the latter meant for arteries below the knee. Bigger still should be ...