SpaceX’s Falcon 9 rocket, with the company’s Dragon spacecraft atop, lifts off from NASA Kennedy Space Center’s Launch Complex 39A in Florida on March 14, 2023, beginning the company’s 27th resupply services mission to the International Space Station. Liftoff occurred at 8:30 p.m. EDT. Photo credit: NASA/Kim Shiflett
SpaceX’s Dragon spacecraft – carrying several thousand pounds of critical science, hardware, and crew supplies – is on its way to the International Space Station following a successful launch from NASA’s Kennedy Space Center in Florida. The company’s Falcon 9 rocket lifted off from Launch Complex 39A at 8:30 p.m. EDT, beginning SpaceX’s 27th resupply services mission to the orbiting laboratory.
Dragon is now safely in orbit. A series of thruster firings will help Dragon reach the space station about 36 hours later. Upon its arrival, it will autonomously dock to the station’s Harmony module, with NASA astronaut Woody Hoburg monitoring operations. Live coverage of Dragon’s arrival will air on NASA TV, the NASA app, and the agency’s website beginning at 6:15 a.m. Thursday, March 16. Docking is scheduled for approximately 7:52 a.m.
In addition to delivering station supplies, fresh food, and hardware, Dragon also will deliver multiple science and research investigations, including the final two experiments of the National Institutes for Health and International Space Station National Laboratory’s Tissue Chips in Space initiative. Both experiments – the Cardinal Heart 2.0 and Engineered Heart Tissues-2 – use small devices containing living cells that mimic functions of heart tissues and organs to understand the role of microgravity on human health and use this information to improve health on Earth.
Dragon will spend about a month attached to the space station before autonomously undocking and returning to Earth with research and return cargo, splashing down in the off the coast of Florida.
Seen here is an up-close view of the SpaceX Dragon spacecraft atop the company’s Falcon 9 rocket in the vertical position at NASA’s Kennedy Space Center in Florida on Tuesday, March 14, 2023, in preparation for the 27th commercial resupply services launch to the International Space Station. The mission will deliver new science investigations, supplies, and equipment to the crew aboard the space station. Liftoff is scheduled for 8:30 p.m. EDT on March 14, from Kennedy’s Launch Complex 39A. Photo credit: SpaceX
Hello from NASA’s Kennedy Space Center in Florida! A SpaceX Falcon 9 rocket, with the company’s Dragon spacecraft atop, stands ready for liftoff at historic Launch Complex 39A. Tonight’s launch is SpaceX’s 27th commercial resupply services mission for NASA, delivering more than 6,000 pounds of supplies, equipment, and research to the crew aboard the International Space Station. NASA is providing live coverage of the launch – watch now on NASA TV, the NASA app, and the agency’s website.
Liftoff is scheduled for 8:30 p.m. EDT, just 30 minutes away, and weather is looking great at 90% “go” for launch. Tonight’s launch is a coordinated effort, with launch controllers here in Florida working closely with teams at NASA’s Johnson Space Center in Houston and SpaceX’s control center in Hawthorne, California.
Fueling of the Falcon 9 began approximately 20 minutes ago, with liquid oxygen flowing into the rocket’s first stage. In the next few minutes, fueling of the second stage will begin.
Here’s a full look at tonight’s countdown and ascent milestones. All times (EDT) are approximate:
COUNTDOWN
Hr/Min/Sec Event
– 00:38:00 SpaceX Launch Director verifies go for propellant load
– 00:35:00 RP-1 (rocket grade kerosene) loading begins
– 00:35:00 1st stage LOX (liquid oxygen) loading begins
– 00:16:00 2nd stage LOX loading begins
– 00:07:00 Falcon 9 begins prelaunch engine chill
– 00:05:00 Dragon transitions to internal power
– 00:01:00 Command flight computer to begin final prelaunch checks
– 00:01:00 Propellant tanks pressurize for flight
– 00:00:45 SpaceX Launch Director verifies go for launch
– 00:00:03 Engine controller commands engine ignition sequence to start
– 00:00:00 Falcon 9 liftoff
LAUNCH, LANDING, AND DRAGON DEPLOYMENT Hr/Min/Sec Event
00:01:12 Max Q (moment of peak mechanical stress on the rocket)
00:02:24 1st stage main engine cutoff (MECO)
00:02:28 1st and 2nd stages separate
00:02:35 2nd stage engine starts
00:05:44 1st stage entry burn begins
00:07:36 1st stage landing
00:08:38 2nd stage engine cutoff (SECO)
00:11:34 Dragon separates from 2nd stage
00:12:22 Dragon nosecone open sequence begins
A SpaceX Falcon 9 rocket, with the company’s Dragon spacecraft atop, is secured in the vertical position at NASA Kennedy Space Center’s Launch Complex 39A on March 13, 2023, in preparation for the 27th commercial resupply services launch to the International Space Station. Liftoff is scheduled for 8:30 p.m. EDT on Tuesday, March 14, from Kennedy’s Launch Complex 39A. Photo credit: SpaceX
SpaceX’s Falcon 9 rocket, with the company’s Dragon spacecraft atop, stands ready for liftoff from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. The instantaneous launch is scheduled for 8:30 p.m. EDT today, March 14, and meteorologists with Cape Canaveral Space Force Station’s 45th Weather Squadron are now predicting an 80% chance of favorable weather conditions for liftoff.
Dragon is packed with more than 6,200 pounds of science, equipment, and supplies bound for the International Space Station. Also flying on Dragon is the agency’s Educational Launch of Nanosatellites (ELaNa) 50 mission, which will deliver two CubeSats to low-Earth orbit to conduct science investigations of their own. Read about them here.
Beginning at 8 p.m. tonight, tune in to NASA TV, the NASA app, or the agency’s website for live launch countdown coverage, or follow along right here on the blog as we take you through all of the major milestones leading up to and after liftoff.
The SpaceX Falcon 9 rocket carrying the Dragon cargo spacecraft lifts off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Nov. 26, 2022, on the company’s 26th commercial resupply services mission for the agency to the International Space Station. Liftoff was at 2:20 p.m. EST. Photo credit: NASA/Kevin O’Connell & Kevin Dav
NASA and SpaceX are targeting 8:30 p.m. EDT Tuesday, March 14, to launch the company’s 27th commercial resupply mission to the International Space Station. Liftoff will be from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. Launch timing is dependent upon the undocking and return of NASA’s SpaceX Crew-5.
On Monday, March 13, tune in to a prelaunch media teleconference at 8 p.m. EDT (or no earlier than one hour after completion of the Launch Readiness Review) with the following participants:
Phil Dempsey, transportation integration manager, International Space Station Program
Dr. Meghan Everett, deputy chief scientist, NASA’s International Space Station Program Research Office
Sarah Walker, director, Dragon Mission Management, SpaceX
Mike McAleenen, launch weather officer, Cape Canaveral Space Force Station’s 45th Weather Squadron
Audio of the teleconference will stream live on the agency’s website. Media may ask questions via phone only. For the dial-in number and passcode, please contact the Kennedy newsroom no later than 5 p.m. EDT on Monday, March 13, at: ksc-newsroom@mail.nasa.gov.
On Tuesday, March 14, at 11 a.m. EDT, a science media teleconference will take place with the following participants:
Dr. Meghan Everett, deputy chief scientist, NASA’s International Space Station Program Research Office
Shane Johnson, former HUNCH student and current research assistant at the University of Texas at Austin, who will discuss the HUNCH Ball Clamp Monopod experiment
Dr. Mita Hajime, professor at the Fukuoka Institute of Technology and principal investigator for the Tanpopo-5 experiment
Dr. Ralf Moeller, microbiologist at the German Aerospace Center in Cologne, Germany, and principal investigator of the BIOFILMS study
Audio of the teleconference will stream live on the agency’s website. Following this, live launch coverage will begin at 8 p.m. EDT on NASA TV, the NASA app, and the agency’s website.
A group of students at Thomas Jefferson High School for Science and Technology work on their CubeSat, TJREVERB (Thomas Jefferson Research and Education Vehicle for Evaluating Radio Broadcasts). Photo credit: Thomas Jefferson High School
Four small, shoebox-sized satellites are being prepared to launch to the International Space Station as part of NASA’s Educational Launch of Nanosatellites (ELaNa) 49 mission. The small satellites, called CubeSats, will study a range of topics – from satellite communication methods to space weather to testing technology for robotic assembly of large telescopes.
The CubeSats will hitch a ride on the SpaceX Falcon 9 rocket and Dragon spacecraft set to deliver additional science, crew supplies, and hardware to the station during the company’s 26th commercial resupply services mission for NASA. Launch is targeted at 4:19 p.m. EST from Launch Complex 39A at the agency’s Kennedy Space Center in Florida.
Satellite Communications
Seen here is an up-close view of the University of Michigan’s Measurement of Actuator Response In Orbit (MARIO) CubeSat. Photo credit: University of Michigan
The first U.S. high school to send a CubeSat to space back in 2013, Thomas Jefferson High School for Science and Technology’s Research and Education Vehicle for Evaluating Radio Broadcasts satellite aims to study the use of iridium as a primary radio communication method. Additionally, the satellite will demonstrate using a passive magnet onboard and the Earth’s magnetic field for stabilization rather than using an attitude determination and control system for pointing accuracy and stabilization for iridium. What makes this satellite even more notable is that it was a system’s engineering project. The students selected space-grade parts, wired the electronics for the satellite, wrote the drivers to control the different systems, and coded the flight software.
“What’s special about TJREVERB isn’t necessarily the mission, it’s what we did. These kids literally built a satellite the way the industry would build a satellite; we selected parts from vendors and got those parts to work together,” said Kristen Kucko, robotics lab director and the school’s space faculty advisor. “This is an engineering feat.”
Structure Testing
The University of Michigan’s Measurement of Actuator Response In Orbit (MARIO) is a technology demonstration that will show how test structures made of a piezoelectric material – a type of material that bends when electricity is applied and can also generate electricity when bent – perform in low-Earth orbit. This will allow the spacecraft to bend or move without any rotating parts and could one day be used to point and adjust telescope mirrors more accurately.
Space Weather
Seen here is an up-close view of NASA Marshall Space Flight Center’s Scintillation Prediction Observations Research Task (SPORT) CubeSat. Photo credit: NASA
NASA Goddard Space Flight Center’s Plasma Enhancement in The Ionosphere-Thermosphere Satellite (petitSat) will study density irregularities in the Earth’s ionosphere – a tiny fraction of the atmosphere made of plasma, or ionized gas. During long distance radio communication, the ionosphere reflects radio waves back to Earth. Disturbances in the upper atmosphere can change the shape of the ionosphere, creating a funhouse mirror effect and distorting these radio waves. The mission will use two instruments to measure the structure and motion of plasma in the ionosphere resulting from these changes in the upper atmosphere to better understand how these affect satellite communications.
NASA Marshall Space Flight Center’s Scintillation Prediction Observations Research Task (SPORT) will also look to the ionosphere to study space weather. The joint mission between the U.S. and Brazil will examine the formation of plasma bubbles, which sometimes scatter radio signals. Understanding how these bubbles are formed and how their evolution impacts communication signals can help scientists improve the reliability of communication and navigation systems.
“The more we learn about space weather – and how to predict it – the better we can protect our astronauts, spacecraft, and technology,” said Shelia Nash-Stevenson, SPORT project manager.
All of these were selected through NASA’s CubeSat Launch Initiative (CSLI), which provides U.S. educational institutions, nonprofits with an education/outreach component, informal educational institutions (museums and science centers), and NASA centers with access to space at a low cost. Once the CubeSat selections are made, NASA’s Launch Services Program works to pair them with a launch that is best suited to carry them as auxiliary payloads, taking into account the planned orbit and any constraints the CubeSat missions may have.
The SpaceX Falcon 9 rocket carrying the Dragon capsule soars upward after lifting off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on July 14, 2022, on the company’s 25th Commercial Resupply Services mission for the agency to the International Space Station. Liftoff was at 8:44 p.m. EDT. Photo credit: NASA/Kim Shiflett
SpaceX’s Dragon spacecraft – carrying more than 5,800 pounds of critical science, hardware, and crew supplies – is on its way to the International Space Station following a successful launch from NASA’s Kennedy Space Center in Florida. The company’s Falcon 9 rocket lifted off from Launch Complex 39A at 8:44 p.m. EDT, beginning SpaceX’s 25th resupply services mission to the orbiting laboratory.
Dragon is now safely in orbit with its solar arrays deployed and drawing power for the nearly two-day trip to the space station.
“We’re excited to continue to help transport this kind of cargo for NASA and also to carry the crew members who are the key component for doing research and managing things on station,” said Benjamin Reed, senior director of Human Spaceflight Programs at SpaceX. “All of this, of course, is not possible without our partnerships with NASA, with the Space Force, and all of our customers. We can’t thank you enough for the opportunity to be a part of this and be a part of this great science community.”
The Earth Surface Mineral Dust Source Investigation (EMIT) mission instrument (right) sits in the “trunk” that will travel aboard SpaceX’s 25th cargo resupply mission to the International Space Station. This image was taken May 3, 2022, at SpaceX’s Dragonland facility in Florida. Photo credit: SpaceX
The spacecraft is scheduled to arrive at the space station on Saturday, July 16. Upon its arrival, Dragon will autonomously dock to the station’s Harmony module while NASA astronauts Jessica Watkins and Bob Hines monitor operations. Live coverage of Dragon’s arrival will air on NASA Television, the NASA app, and the agency’s website beginning at 10 a.m. EDT. Docking is scheduled for approximately 11:20 a.m.
In addition to delivering station supplies and hardware, Dragon also will deliver multiple science and research investigations. One of those is the Earth Surface Mineral Dust Source Investigation (EMIT). Developed by NASA’s Jet Propulsion Laboratory in California, EMIT will use imaging spectroscopy technology to measure the mineral composition of dust in Earth’s arid regions to better understand what effects it has on the planet.
The spacecraft also will deliver five CubeSats, or small satellites, with varying focuses of study; an investigation using tissue chips to study the aging of immune cells; and an experiment looking at an alternative for concrete using organic material and on-site materials. These are just a few of the more than 250 investigations that will take place during Expedition 67.
“It’s going to be a very busy next few weeks onboard the International Space Station with all the experiments and cargo that Dragon is bringing up,” said Dina Contella, operations integration manager for NASA’s International Space Station Program. “I just really want to congratulate again the SpaceX and NASA teams on another great launch, and I’m looking forward to the Dragon docking on Saturday.”
Dragon will spend about a month attached to the space station before autonomously undocking and returning to Earth with research and return cargo, splashing down in the Atlantic Ocean.
Seen here is a close view of the SpaceX Cargo Dragon spacecraft atop the company’s Falcon 9 rocket after being raised to a vertical position at NASA’s Kennedy Space Center in Florida on July 12, 2022, in preparation for the 25th commercial resupply services launch to the International Space Station. Photo credit: SpaceX
Hello from NASA’s Kennedy Space Center in Florida! A SpaceX Falcon 9 rocket, with the cargo Dragon spacecraft atop, stands ready for liftoff at Kennedy’s Launch Complex 39A. Live countdown coverage has begun – watch now on NASA Television, the NASA app, and the agency’s website.
Liftoff is just a little under 30 minutes away, at 8:44 p.m. EDT. This is the 25th commercial resupply services (CRS-25) mission for SpaceX, delivering more than 5,800 pounds of science experiments and research, hardware, and crew supplies to the International Space Station.
About 12 minutes after launch, Dragon will separate from the Falcon 9 rocket’s second stage, beginning a series of carefully choreographed thruster firings to reach the space station two days later.
Here’s a look at some of tonight’s countdown and ascent milestones. All times are approximate.
COUNTDOWN
Hr/Min/Sec Event
– 00:38:00 SpaceX Launch Director verifies go for propellant load
– 00:35:00 RP-1 (rocket grade kerosene) loading begins
– 00:35:00 1st stage LOX (liquid oxygen) loading begins
– 00:16:00 2nd stage LOX loading begins
– 00:07:00 Falcon 9 begins pre-launch engine chill
– 00:05:00 Dragon transitions to internal power
– 00:01:00 Command flight computer to begin final prelaunch checks
– 00:01:00 Propellant tanks pressurize for flight
– 00:00:45 SpaceX Launch Director verifies go for launch
– 00:00:03 Engine controller commands engine ignition sequence to start
– 00:00:00 Falcon 9 liftoff
LAUNCH, LANDING, AND DRAGON DEPLOYMENT
Hr/Min/Sec Event
00:01:18 Max Q (moment of peak mechanical stress on the rocket)
00:02:30 1st stage main engine cutoff (MECO)
00:02:34 1st and 2nd stages separate
00:02:41 2nd stage engine starts
00:06:37 1st stage entry burn begins
00:08:38 2nd stage engine cutoff (SECO)
00:08:38 1st stage landing
00:11:49 Dragon separates from 2nd stage
00:12:35 Dragon nosecone open sequence begins
A SpaceX Falcon 9 rocket, with the company’s Cargo Dragon spacecraft atop, is raised to a vertical position at NASA Kennedy Space Center’s Launch Complex 39A on July 12, 2022, in preparation for the 25th commercial resupply services launch to the International Space Station. Photo credit: SpaceX
NASA and SpaceX are targeting 8:44 p.m. EDT today, July 14, for SpaceX’s 25th commercial resupply (CRS-25) launch to the International Space Station. The company’s Falcon 9 rocket and cargo Dragon spacecraft will lift off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
Weather officials with Cape Canaveral Space Force Station’s 45th Weather Squadron continue to predict a 70% chance of favorable weather conditions for today’s launch, with the primary concerns revolving around the cumulus cloud rule and flight through precipitation.
Dragon will carry more than 5,800 pounds of cargo, including a variety of NASA investigations such as NASA’s Earth Surface Mineral Dust Source Investigation (EMIT), which will identify the composition of mineral dust from Earth’s arid regions and analyze dust carried through the atmosphere from deserts to see what effects it has on the planet, further advancing NASA’s data contributions to monitoring climate change.
Other investigations include studying the aging of immune cells and the potential to reverse those effects during postflight recovery, a CubeSat that will monitor cloud top and ocean surface temperatures which could help scientists understand Earth’s climate and weather systems, and a student experiment testing a concrete alternative for potential use in future lunar and Martian habitats.
Beginning at 8:15 p.m. EDT, join us on the CRS-25 mission blog for live coverage, and follow along on NASA Television, the NASA app, and the agency’s website for the live launch broadcast.
NASA Project Manager Dinah Dimapilis unboxes one of two container assemblies that will be used to carry the agency’s Biology Experiment-1 on the Artemis I mission. Photo credit: NASA
As NASA prepares to return to the Moon through Artemis, teams at the agency’s Kennedy Space Center in Florida are working to send much smaller life forms to space to help scientists better understand the effects of space radiation before humans return to the lunar surface.
A number of science experiments, including the agency’s Biology Experiment-1 (BioExpt-1), will be flying on board Artemis I – the mission that will test the agency’s Space Launch System (SLS) rocket and Orion as an integrated system before sending astronauts to the Moon.
NASA’s Space Biology Program selected four biology experiments to fly as part of BioExpt-1, which involves using plant seeds, fungi, yeast, and algae to study the effects of space radiation before sending humans to the Moon and, eventually, to Mars.
“Each of these four experiments will help us understand a unique aspect of how biological systems can adapt and thrive in deep space,” said Sharmila Bhattacharya, NASA program scientist for space biology. “Gathering information like this and analyzing it after flight will eventually help us paint the full picture of how we can help humans thrive in deep space.”
During Artemis I, Orion will travel more than 40,000 miles beyond the Moon, passing through the Van Allen Belts – areas beyond low-Earth orbit where cosmic radiation is trapped – and providing researchers with a true deep space environment for conducting these experiments.
“We don’t currently know what the effects of radiation are outside of low-Earth orbit and how that could affect our system and our biology,” said Dinah Dimapilis, NASA project manager. “I’m excited to see what we can learn from these experiments, to see us go back to the Moon, and to know that I get to be a part of all of this.”
The four experiments will be split into two science bags fabricated and assembled by personnel with the Test Operations and Support Contract at Kennedy. About three weeks before launch, each science bag will be carefully placed into container assemblies built by a team with the Florida spaceport’s Laboratory Support Services and Operations Contract and then secured to the backbone of Orion.
When Orion finishes its journey and splashes down in the Pacific Ocean, each of the experiments will be returned to the principal investigators for further study. Those principal investigators were awarded grants from NASA Biological and Physical Sciences, totaling approximately $1.6 million. The awardees are Federica Brandizzi, Ph.D., Michigan State University; Timothy Hammond, Ph.D., Institute for Medical Research, Inc.; Zheng Wang, Ph.D., Naval Research Laboratory; and Luis Zea, Ph.D., University of Colorado, Boulder.
A SpaceX Falcon 9 rocket with the company’s Crew Dragon spacecraft aboard is seen at sunrise on the launch pad at Launch Complex 39A as preparations continue for Axiom Mission 1 (Ax-1), Thursday, April 7, 2022, at NASA’s Kennedy Space Center in Florida. Photo credit: NASA/Joel Kowsky
NASA and Axiom Space will provide coverage of launch and select mission activities for Axiom Mission 1 (Ax-1), the first private astronaut mission to the International Space Station.
Liftoff is scheduled at 11:17 a.m. EDT Friday, April 8, from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.
Coverage begins on NASA Television, the NASA app, and the agency’s website beginning at 10:15 a.m. EDT Friday, April 8. Coverage will join the Axiom Space broadcast that begins at about 7:50 a.m. The broadcast will end after orbital insertion approximately 15 minutes after launch.
Weather officials with the 45th Weather Squadron are predicting a 90% chance of favorable weather conditions for launch, with the primary concern being liftoff winds. Teams also are monitoring the down range weather for the flight path of the Crew Dragon.
Ax-1 crew members, Commander Michael López-Alegría of the U.S. and Spain, Pilot Larry Connor of the U.S., Mission Specialist Eytan Stibbe of Israel, and Mission Specialist Mark Pathy of Canada, will launch on a flight-proven SpaceX Falcon 9 rocket aboard SpaceX Dragon Endeavour on its third flight to station.
Leaders from NASA, Axiom Space, and SpaceX will participate in a postlaunch media briefing to provide an update on the launch and mission operations. The briefing is targeted to begin at 12:30 p.m. EDT, or about one hour following launch.
During the 10-day mission, eight of which will be spent aboard the orbiting laboratory, the crew will complete more than 25 science experiments and technology demonstrations developed for a microgravity environment.
NASA is working to build a robust low-Earth orbit economy and working with private companies to support the agency’s goals. In doing so, NASA can become one of many customers of this robust economy as the agency focuses on landing the first woman and first person of color on the lunar surface as part of the Artemis program.
