NASA confirms that it discovered the apparent sabotage of a non-critical component of the International Space Station due to be carried up by the Space Shuttle Endeavour on August 7.
- STS-118: NASA discovers a gouge in the belly of the Space Shuttle Endeavour after it docks with the International Space Station.
- Peggy Whitson, commander of the International Space Station (ISS), breaks the record for most total days spent in space by any NASA astronaut, at more than 534 days.
- NASA astronaut Shane Kimbrough and ESA astronaut Thomas Pesquet take a spacewalk outside of the International Space Station to prepare the vessel for new arrivals.
- Three astronauts return from a mission to the International Space Station, Briton Tim Peake of the European Space Agency, Timothy Kopra of NASA and Russian cosmonaut Yuri Malenchenko.
- SpaceX launches a NASA cargo run to the International Space Station, and in a spaceflight first, successfully lands its reusable main-stage booster on an autonomous spaceport drone ship.
- Following the previous explosion of Orbital Sciences' Cygnus CRS Orb-3 on October 28, 2014, an unmanned Atlas V 401 rocket carrying Orbital ATK's Cygnus CRS Orb-4 resupply mission to NASA's International Space Station launches from Cape Canaveral in the U.S. state of Florida. The mission includes 7,380 pounds of cargo.
- The Soyuz TMA-19M, consisting of Expedition 46 crew members Yuri Malenchenko (RSA), Timothy Kopra (NASA) and Tim Peake (ESA), launches from the Baikonur Cosmodrome in Kazakhstan for the International Space Station (ISS) with Peake becoming the first Briton to represent the European Space Agency at the ISS.
- For the first time, NASA emailed hardware, a wrench, to the International Space Station that was fabricated on the ISS's Zero Gravity 3D printer.
- An unmanned Antares rocket carrying NASA's Cygnus CRS Orb-3 resupply mission to the International Space Station explodes seconds after taking off from the Mid-Atlantic Regional Spaceport in the U.S. state of Virginia. The loss includes five thousand pounds of cargo.
- Two NASA astronauts at the International Space Station complete a series of spacewalks to replace a faulty ammonia coolant pump.