CHRONOLOGY
Milestones from the historical record and forthcoming ceremonies.
US EVA-99
NASA astronaut Jessica Meir and ESA astronaut Sophie Adenot will replace a retroreflector on the forward port of the space station’s Harmony module to support spacecraft navigation during rendezvous and docking operations. After installing the reflector, the crew will work to install jumper cables for the data-relay systems, prepare the Alpha Magnetic Spectrometer’s radiator for future maintenance, and replace a high-definition camera on the station’s truss.
Roman Space Telescope Postlaunch News Conference
The Post Launch news conference will take place in the NASA Kennedy Press Site auditorium with the following participants: - NASA Administrator Jared Isaacman - Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters - Jackie Townsend, Roman telescope project manager, NASA Goddard - Julie McEnery, Roman telescope senior project scientist, NASA Goddard - Denton Gibson, launch director, NASA’s Launch Services Program, NASA Kennedy
Roman Space Telescope Prelaunch News Conference
The prelaunch news conference will take place in the NASA Kennedy Press Site auditorium with the following participants: * Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters * Lucas Paganini, Roman telescope program executive, NASA Headquarters * Jackie Townsend, Roman telescope project manager, NASA Goddard * Denton Gibson, launch director, NASA’s Launch Services Program, NASA Kennedy * Julianna Scheiman, director, NASA Science and Dragon Programs, SpaceX * Justin McReynolds, launch weather officer, 45th Weather Squadron, U.S. Space Force
Roman Space Telescope Mission and Science Briefing
The pre-launch mission and science briefing for the Nancy Grace Roman Space Telescope will take place in the NASA Kennedy Press Site auditorium with the following participants: * Shawn Domagal-Goldman, director, Astrophysics Division, NASA Headquarters * Julie McEnery, Roman telescope senior project scientist, NASA Goddard Space Flight Center * Vanessa Bailey, Roman Coronagraph Instrument scientist, NASA Jet Propulsion Laboratory * Kristen McQuinn, Roman Science Operations Center lead, Space Telescope Science Institute * Lee Armus, Roman Science Support Center lead, Caltech/IPAC
SpaceX Starship Booster B21 Static Fire
Booster 21 will be static fired as preparation for Starship Flight 14-
Booster 21 Rollout to the Launch Site
Booster 21 is rolling out to the Launch site at Starbase ahead of testing.
US EVA-98
NASA astronaut Anil Menon and ESA astronaut Sophie Adenot will install a Space-to-Ground antenna on the orbital complex. The antenna is a critical communication system NASA uses to transmit data and high‑speed communication between the Mission Control Center in Houston and the space station. The astronauts also will replace a retroreflector used for spacecraft docking on the Harmony module’s forward port.
US EVA-97
NASA astronaut Anil Menon and ESA astronaut Sophie Adenot will replace a Space-to-Ground antenna, a critical communication system NASA uses to transmit data and high‑speed communication between the Mission Control Center in Houston and the space station, on the orbital complex.
Total Solar Eclipse in Europe
On 12 August 2026, a solar eclipse will be visible across parts of Europe and the north Atlantic. The path of totality will cross Greenland, Iceland, Spain and a small area of northeastern Portugal. Other parts of Europe will see a partial solar eclipse.
US EVA-96
NASA astronauts Jessica Meir and Anil Menon will install hardware that will modify the station’s 3B power channel and prepare it for the future installation of an International Space Station Roll-Out Solar Array (IROSA), which will provide additional power to support critical station operations, including its safe and controlled deorbit.
Chris Williams Post-Flight News Conference
NASA astronaut Chris Williams will recap his recent mission aboard the International Space Station during a news conference from the agency’s Johnson Space Center in Houston.
SpaceX Crew-13 Crew News Conference
The crew of NASA’s SpaceX Crew-13 mission will participate in a news conference from NASA Johnson Space Center. Participants include: - Jessica Watkins, commander, NASA - Luke Delaney, pilot, NASA - Joshua Kutryk, mission specialist, CSA - Sergey Teteryatnikov, mission specialist, Roscosmos
SpaceX Crew-13 Mission Overview News Conference
The Crew-13 mission leadership will host a mission overview press conference with the following participants - Joel Montalbano, deputy associate administrator, Human Spaceflight Mission Directorate, NASA Headquarters - Dana Weigel, manager, Low Earth Orbit Program, NASA Johnson - Mathieu Caron, director, Astronauts, Life Sciences, and Space Medicine, CSA - Julianna Scheiman, director, NASA Science and Dragon Programs, SpaceX
US EVA-96/97/98 Preview News Conference
NASA will discuss the upcoming US EVA-96, 97 and 98 spacewalks during a news conference at the agency’s Johnson Space Center in Houston. NASA participants include: - Bill Spetch, deputy manager of Commercial, Low Earth Orbit Program - Chris Dobbins, spacewalk flight director - Chloe Mehring, spacewalk flight director
Roman Telescope Pre-Launch Media Briefing
NASA will host a virtual news conference to preview the Nancy Grace Roman Space Telescope mission, scheduled to launch from the agency’s Kennedy Space Center in Florida on Sunday, Aug. 30. Participants in the briefing, who will provide an overview of the mission and its status, include: - Shawn Domagal-Goldman, director, Astrophysics Division, NASA Headquarters in Washington - Jackie Townsend, Roman telescope project manager, NASA’s Goddard Space Flight Center in Greenbelt, Maryland - Julie McEnery, Roman telescope senior project scientist, NASA Goddard - Jeremy Perkins, Roman telescope integration and test scientist, NASA Goddard
Soyuz MS-28 Landing
The Soyuz MS-28 spacecraft will land back on Earth near Dzhezkazgan, Kazakhstan.
Soyuz MS-28 Undocking
The Soyuz MS-28 spacecraft will undock from the International Space Station ahead of reentry and landing in Kazakhstan.
Soyuz MS-28 Farewell Ceremony
NASA will livestream the farewell ceremony and hatch closing of the Soyuz MS-278crew ahead of its return to Earth.
ISS Expedition 74-75 Change of Command Ceremony
ROSCOSMOS cosmonaut Sergey Kud-Sverchkov will hand over the International Space Station command to NASA astronaut Jessica Meir.
SpaceX Starship Booster B20 Testing
SpaceX is testing Booster 20 before the 13th Starship Test Flight.
Soyuz MS-29 Hatch Opening
Coverage of the hatch opening and welcoming remarks by the Soyuz MS-29 crew on the International Space Station as they join the Expedition 74 crew.
Soyuz MS-29 Docking
The Soyuz MS-29 spacecraft will autonomously dock to the International Space Station.
Hayabusa2 S-Type Asteroid (98943) Torifune Flyby
As part of its mission extension, JAXA's Hayabusa2 spacecraft will observe S-type asteroid (98943) Torifune during a high-speed fly-by.
NASA Moon Base Progress Teleconference
NASA Administrator Jared Isaacman will host a virtual conversation to share updates to NASA’s plans to build a Moon Base on the lunar surface. Administrator Isaacman and Carlos García-Galán, Moon Base program manager, will discuss the next set of awards for new lunar lander missions and preview upcoming opportunities as the agency works toward building a sustained presence on the Moon.
US EVA-95
NASA astronauts Chris Williams and Jessica Meir will replace a wrist joint on the International Space Station’s Canadarm2 robotic arm, using a spare already aboard the space station.
US EVA-95 Preview News Conference
NASA will discuss the upcoming US EVA-95 spacewalk during a news conference at the agency’s Johnson Space Center in Houston. NASA participants include: - Bill Spetch, operations and integration manager, International Space Station Program, NASA Johnson - Fiona Antkowiak, spacewalk flight director, NASA Johnson - Jason Dyer, deputy liaison manager, CSA
NASA Katalyst Swift Reboost Preview Teleconference
NASA will host an audio-only media teleconference to preview the Katalyst Space mission to boost the orbit of NASA’s Neil Gehrels Swift Observatory. Katalyst’s robotic servicing spacecraft, called LINK, will attempt to rendezvous with Swift and raise its altitude, extending its science mission lifespan and advancing a key capability for the future of space exploration. The LINK spacecraft will launch on Northrop Grumman’s Pegasus XL rocket later this month from Kwajalein Atoll in the Marshall Islands. Participants in the media teleconference include: - Shawn Domagal-Goldman, division director, Astrophysics, NASA Headquarters in Washington - Brad Cenko, principal investigator, Swift, NASA’s Goddard Space Flight Center in Greenbelt, Maryland - Kieran Wilson, principal investigator, LINK, Katalyst Space - Robert Lamontagne, vice president, strategic partnerships, Katalyst Space - Wes Collier, vice president, launch systems, Northrop Grumman The Swift mission, which launched in 2004, leads NASA’s fleet of telescopes in studying changes in the high-energy universe, like gamma-ray bursts, which are the most powerful explosions in the cosmos. When a rapid, sudden event takes place in the sky, Swift serves as a “dispatcher,” providing critical information that allows other “first responder” missions to follow up to learn more about how the universe works. After 21 years, Swift’s low Earth orbit has begun to rapidly decay because of increased solar activity. Rather than allowing the observatory to re-enter Earth’s atmosphere, as many missions do at the end of their lifetimes, NASA is using this opportunity to advance U.S. spacecraft servicing technology. In September 2025, NASA awarded a contract to Katalyst to mount a robotic servicing mission for Swift in less than a year. The mission will use LINK to rendezvous with Swift and boost it to a higher altitude, demonstrating a key capability for the future of space exploration.
SpaceX CRS-34 Dragon Undocking
The SpaceX CRS-34 Dragon spacecraft will undock from the International Space Station ahead of its reentry, splashdown and recovery.
Artemis III Crew Announcement
NASA will provide an update on the agency’s Artemis III mission and announce the astronauts assigned to the test flight. Artemis III will launch four astronauts from NASA’s Kennedy Space Center in Florida aboard the Orion spacecraft on the SLS (Space Launch System) rocket. The mission will test critical rendezvous and docking capabilities between Orion and commercial human landing systems needed to deliver astronauts to the lunar surface. Building on the successful Artemis II crewed test flight in April, Artemis III will pave the way for future surface missions.
NASA MAVEN Farewell Media Teleconference
The first mission devoted to observing the Martian atmosphere and its evolution, NASA’s MAVEN (Mars Atmosphere and Volatile Evolution), has ended after more than 11 years in orbit at Mars and a decade beyond its primary, one-year mission. The spacecraft was heard last on Dec. 6, when it experienced an unexpected loss of signal after it passed behind the Red Planet. NASA will host a media teleconference to discuss MAVEN’s achievements. Participants in the teleconference include: - Tiffany Morgan, director, Mars Exploration Program, Planetary Science Division, NASA Headquarters - Mike Moreau, project manager, MAVEN, NASA’s Goddard Space Flight Center, Greenbelt, Maryland - Greg Heckler, deputy program manager for Capability Development, SCaN (Space Communications and Navigation), NASA Headquarters - Shannon Curry, MAVEN principal investigator, Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder