The aurora borealis, or northern lights, illuminates the night sky on Aug. 23 in Erikslund village in Sweden.
JONATHAN NACKSTRAND / AFP - Getty Images
JODY AMIET / AFP - Getty Images
An Ariane 5 rocket lifts off from the European Spaceport in Kourou, French Guiana, on Aug. 24. The rocket successfully launched a pair of communications satellites, the INTELSAT-33e and the INTELSAT-36.
Bill Ingalls / NASA
In this 30-second exposure, hikers find their way to the top of Spruce Knob in West Virginia to view the annual Perseid meteor shower on Aug. 12.
NASA's Juno spacecraft snapped this photo of Jupiter from a distance of 437,000 miles on Aug. 27 as it approached the planet for its first and closest flyby.
The robotic probe began circling the solar system's largest planet on July 4, ending a nearly five-year journey through deep space and becoming the first spacecraft to enter Jupiter orbit since NASA's Galileo mission did so in 1995.
NASA/JPL-Caltech/SwRI/MSSS via EPA
NASA astronaut Kate Rubins prepares for a spacewalk onboard the International Space Station on Aug. 10.
NASA astronauts Jeff Williams, seen here, and Kate Rubins successfully installed a new international docking adapter on Aug. 19, 2016 during a five-hour and 58-minute spacewalk. The adapter will enable future crew vehicles from Boeing and SpaceX to dock at the station.
Japanese astronaut Takuya Onishi assisted the duo from inside the station. Williams is scheduled to return to Earth on Sept. 6 with Russian cosmonauts Oleg Skripochka and Alexey Ovchinin, ending Expedition 48.
Kate Rubins / NASA
Jeff Williams / NASA
NASA astronaut Jeff Williams tweeted this image of the full moon above the Earth on Aug. 19, commenting: "The last month has gone by quickly... full Moon again!" Williams is the commander of the space station for Expedition 48.
Jeff Williams / NASA
NASA astronaut Jeff Williams tweeted this image of the Glen Canyon National Recreation Area in Utah on Aug. 25 to mark the 100th anniversary of the National Park Service.
MAXIM SHIPENKOV / EPA
From left, NASA astronaut Shane Kimbrough, Russian cosmonauts Sergey Ryzhikov and Andrey Borisenko attend final exams in the Russian cosmonaut training center in Star City outside Moscow on Aug. 31. The three are scheduled to depart for the International Space Station from the Baikonur Cosmodrome in Kazakhstan on Sept. 23.
MARCO BERTORELLO / AFP - Getty Images
Star trails fill the sky over the Bagnour alpine refuge during the annual Perseid meteor shower in this long-exposure captured in the Italian Alps on Aug.13.
The Perseids happen when Earth hits a wide belt of debris left behind by the comet Tuttle-Swift on its elongated, 133-year orbit around the Sun.
After four months without a sunrise, the crew of the Concordia research station in Antarctica welcome the sun's return on Aug. 12.
During the Antarctic summer some 60 scientists live and work on the base conducting research on the icy plateau 2-miles above sea level.
When winter comes, the skeleton crew of up to 15 keep the base running and fend for themselves for nine months. No help can be flown in as temperatures drop to -112 degrees Fahrenheit.
Preparing for exploration of our solar system, the European Space Agency runs life-science experiments on the crew as they adapt to life in these harsh conditions.
A person, lower left, admires the Milky Way from the summit of Croix des Chaux, western Switzerland, on Aug. 3. The Milky Way is believed to harbor as many as 400 billion stars and at least as many planets.
ANTHONY ANEX / EPA
Saturn's moons Tethys and Hyperion appear to be near neighbors in this view captured by the Cassini spacecraft on Aug. 15. They are actually almost a million miles apart here. Tethys is the larger body on the left.
One of mankind's most ambitious space exploration projects, Cassini is a joint mission of NASA, the European Space Agency and Italy's Agenzia Spaziale Italiana. It arrived at the ringed planet in 2004, and the following year launched a mini-probe that parachuted to the surface of Saturn's largest moon, Titan.
Month in Space: July 2016