Happy New Year! The first earthview of 2019 is the extravehicular activity (EVA) of an astronaut captured by Alex Gerst on board ISS.

Credit: Alex Gerst, ESA, NASA

Extravehicular activity (EVA) is any activity done by an astronaut outside a spacecraft, or commonly known as spacewalk. EVAs may be either tethered (the astronaut is connected to the spacecraft; oxygen and electrical power can be supplied through an umbilical cable; no propulsion is needed to return to the spacecraft), or untethered. Untethered spacewalks were only performed on three missions in 1984 using the Manned Maneuvering Unit (MMU), and on a flight test in 1994 of the Simplified Aid For EVA Rescue (SAFER), a safety device worn on tethered U.S. EVAs.

Reference: Alex Gerst’s Tweet
See earthview photo gallery: LiVEARTH