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Before our Space Launch System (SLS) rocket and Orion spacecraft can launch our nation into a new era of spaceflight, the duo must first undergo a wet dress rehearsal at the launch pad prior to liftoff. Watch SLS and Orion continue on their path to the pad as they travel to Kennedy Space Center's Launch Pad 39B for a full countdown rehearsal - an operation involving hundreds of engineers stationed all across the nation.

"Best day of my whole life. Ever." Watch the reactions of a group of students, joined by NASA Administrator Bill Nelson and NASA Associate Administrator Bob Cabana, who hopped on a tour bus at Kennedy Space Center for an opportunity of a lifetime to view the Artemis I Space Launch System rocket and Orion spacecraft in the Vehicle Assembly Building's High Bay 3. #Artemis I is scheduled to launch no earlier than Aug. 29 at 8:33 a.m. EDT from the center’s Launch Complex 39B on a flight test around the Moon and back to Earth.

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Watch live as the Dragon Freedom spacecraft undocks with the four crew members of NASA’s SpaceX Crew-4 mission aboard: NASA astronauts Kjell Lindgren, Bob Hines, and Jessica Watkins, as well as ESA (European Space Agency) astronaut Samantha Cristoforetti. Undocking from the International Space Station (ISS) is targeted for Friday, Oct. 14. Splashdown is targeted several hours later at 4:55 p.m. EDT (2055 UTC) Friday off the coast of Florida. During their stay of nearly six months on the ISS, Crew-4 members contributed to ongoing and new scientific investigations and technology demonstrations, work that is helping to prepare humans for future space exploration missions and generating innovations and benefits for humanity on Earth

NASA hosted a briefing to provide highlights from the first year-and-a-half of the Perseverance rover’s exploration of Mars. The rover landed in Mars’ Jezero Crater in February 2021 and is collecting samples of rock and other materials from the Martian surface. Perseverance is investigating the sediment-rich ancient river delta in the Red Planet’s Jezero Crater. Speakers: • Lori Glaze, director of NASA’s Planetary Science Division, NASA Headquarters • Laurie Leshin, JPL director • Rick Welch, Perseverance deputy project manager, JPL • Ken Farley, Perseverance project scientist, Caltech • Sunanda Sharma, Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) scientist, JPL • David Shuster, Perseverance returned sample scientist, University of California, Berkeley

NASA astronaut Frank Rubio, a member of NASA's 2017 astronaut candidate class, is set to begin his first mission to space this Wednesday, Sept. 21. Rubio will lift off from the Baikonur Cosmodrome in Kazakhstan aboard the Soyuz MS-22 spacecraft, alongside Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin. MS-22 is scheduled to lift off at 9:54 a.m. EDT (13:54 UTC) Wednesday, Sept. 21; NASA TV coverage will begin at 9 a.m. After a two-orbit, three-hour journey, the Soyuz will dock to the International Space Station at 1:11 p.m. Rubio, Prokopyev, and Petelin are scheduled to spend six months aboard the station.

NASA’s Perseverance Mars Rover has arrived at an ancient delta in Jezero Crater, one of the best places on the Red Planet to search for potential signs of ancient life. The delta is an area where scientists surmise that a river once flowed billions of years ago into a lake and deposited sediments in a fan shape. Rachel Kronyak, a member of the Perseverance science operations team, guides the viewer through this Martian panorama and its intriguing sedimentary rocks. It’s the most detailed view ever returned from the Martian surface, consisting of 2.5 billion pixels and generated from 1,118 individual Mastcam-Z images. Those images were acquired on June 12, 13, 16, 17, and 20, 2022 (the 466th, 467th, 470th, 471st, and 474th Martian day, or sol, of Perseverance’s mission). In this panorama, an area called Hogwallow Flats is visible, as is Skinner Ridge, where two rock core samples were taken. The color enhancement in this image improves the visual contrast and accentuates color differences. This makes it easier for the science team to use their everyday experience to interpret the landscape.

When the Hunga Tonga-Hunga Ha’apai volcano erupted on Jan. 15, it sent a tsunami racing around the world and set off a sonic boom that circled the globe twice. The underwater eruption in the South Pacific Ocean also blasted an enormous plume of water vapor into Earth’s stratosphere – enough to fill more than 58,000 Olympic-size swimming pools. The sheer amount of water vapor could be enough to temporarily affect Earth’s global average temperature. So outside of its sheer magnitude, what makes this eruption so unique? Well, it’s really a matter of our ability to see it through NASA and ESA satellites. Music credit: “Color Chart” and “Bright Horizons” from Universal Production Music Credit: NASA's Goddard Space Flight Center Emily Watkins (GSFC Interns): Lead Producer Kathleen Gaeta(GSFC AIMMS): Producer Dr. James Garvin (NASA Chief Scientist Goddard):

These are our explorers. They're the people who will get us to the Moon, collect Moon rocks, deliver them to Earth safely, and ensure that we can study them for years to come. On episode one of “NASA Explorers: Artemis Generation," meet astronaut Jessica Watkins, engineer Adam Naids, Moon rock curator Julie Mitchell, and astrobiologist Jose Aponte. They each had a different path to NASA, from conducting hazardous kitchen chemistry experiments in Lima, Peru, to exploring the Louisiana Bayou, to dissecting a cow’s eye in a science program in Colorado. Each person is a vital part of NASA’s goal to conduct science on the Moon’s surface. Series Executive Producers: Katy Mersmann/Lauren Ward Season Producers: Lonnie Shekhtman/Stephanie Sipila/James Tralie/Molly Wasser Explorers: Jose Aponte/Natalie Curran/Julie Mitchell/Adam Naids/Noah Petro/Kelsey Young/Jessica Watkins Music: a. “Blackbird” by Magnum Opus b. “Optimistic Attitude 1” by Joel Goodman and Vicente Julio Ortiz Gimeno c. “By the Moonlit Lake” by Mark Choi d. “Beside You” by Dominic Marsh and Giovanni Tria e. “Playground Intrigue” by Brice Davoli f. “Momentous” by Le Fat Club and Olivier Grim Credit: NASA

The Jet Propulsion Laboratory’s success in landing the low-cost Mars Pathfinder mission in 1997 was viewed as proof that spacecraft could be built more often and for far less money — a radical cultural change NASA termed “Faster, Better, Cheaper.” This era also coincided with the discovery of a Mars rock that hinted at the possibility of microbial life elsewhere in the solar system. NASA’s reaction was to envision a steady stream of missions to Mars — all done at cut-rate costs. In fact, the next challenge taken on by JPL was to fly two missions to Mars for the price of the single Pathfinder mission. Mars Climate Orbiter and the Mars Polar Lander both made it to the launch pad, on time and on budget, but were lost upon arrival at Mars, resulting in one of the most difficult periods in the history of JPL. “The Breaking Point” tells the story of the demise of these two missions and the abrupt end of NASA’s “Faster, Better, Cheaper” era. Documentary length: 1 hour 47 minutes

Countdown to impact as NASA’s Double Asteroid Redirection Test (DART) attempts humanity’s first-ever test of planetary defense! The DART spacecraft will intentionally crash into asteroid Dimorphos at 7:14 p.m. ET on Monday, September 26, 2022 to see if kinetic force can change its orbit. Why? If this test is successful, the same technique could be used to deflect an Earth-threatening asteroid in the future, should one ever be discovered. The #DARTMission's target asteroid is NOT a threat to Earth before, during or after the impact event.

Meet NASA’s rock detectives. Using tiny samples of lunar rock brought back by Apollo astronauts, these NASA Explorers are looking into the origins of our Moon, our planet, and ourselves. They might be among the first scientists to study samples from the Moon’s South Pole that will be delivered to Earth by Artemis astronauts. In episode 2 of “NASA Explorers: Artemis Generation,” we’re joining scientists like Natalie Curran and Jose Aponte, who are looking at clues buried in Moon rocks. Series Executive Producers: Katy Mersmann/Lauren Ward Season Producers: Lonnie Shekhtman/Stephanie Sipila/James Tralie/Molly Wasser Explorers: Natalie Curran/Jose Aponte Music: 1. “Darwin’s Extraordinary Journey” by Laurent Dury 2. “From Small Beginnings” by Jay Price 3. “Life Eternal” by Enrico Cacace and Lorenzo Castellarin 4. “All is Good” by Anders Niska and Klas Johan Wahl 5. “Hyperion” by Gresby Race Nash Credit: NASA

NASA's next outer solar system mission, Europa Clipper, will gather detailed measurements of Jupiter’s moon Europa. Scientists think the intriguing moon may contain a salty ocean below a miles-thick ice shell, and the Europa Clipper mission - which is scheduled for launch in 2024 - will investigate whether it could have conditions suitable for life. Join us Sept 28th at 1:00 pm PT for a live Q&A from JPL's High Bay 1 clean room and see Europa Clipper up close in the early stages of assembly. We'll discuss what we want to learn from Europa and what kind of instruments we will use to explore it with project staff scientist Cynthia Phillips and project system engineer Jennifer Dooley.

This broadcast features numerous Moon-themed videos and presentations in celebration of International Observe the Moon Night 2022. International Observe the Moon Night is a time to come together with fellow Moon enthusiasts and curious people worldwide to learn about lunar science and exploration, take part in celestial observations, and honor cultural and personal connections to the Moon. This broadcast showcases videos about NASA’s Lunar Reconnaissance Orbiter Mission, Apollo 17, VIPER and the Artemis missions, as well as video submissions from those celebrating this night around the world.

NASA hosted a briefing to provide highlights from the first year-and-a-half of the Perseverance rover’s exploration of Mars. The rover landed in Mars’ Jezero Crater in February 2021 and is collecting samples of rock and other materials from the Martian surface. Perseverance is investigating the sediment-rich ancient river delta in the Red Planet’s Jezero Crater. Speakers: • Lori Glaze, director of NASA’s Planetary Science Division, NASA Headquarters • Laurie Leshin, JPL director • Rick Welch, Perseverance deputy project manager, JPL • Ken Farley, Perseverance project scientist, Caltech • Sunanda Sharma, Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) scientist, JPL • David Shuster, Perseverance returned sample scientist, University of California, Berkeley

"Best day of my whole life. Ever." Watch the reactions of a group of students, joined by NASA Administrator Bill Nelson and NASA Associate Administrator Bob Cabana, who hopped on a tour bus at Kennedy Space Center for an opportunity of a lifetime to view the Artemis I Space Launch System rocket and Orion spacecraft in the Vehicle Assembly Building's High Bay 3. #Artemis I is scheduled to launch no earlier than Aug. 29 at 8:33 a.m. EDT from the center’s Launch Complex 39B on a flight test around the Moon and back to Earth

NASA’s Double Asteroid Redirection Test, also known as DART, is humanity’s first attempt to change the motion of a non-hazardous asteroid in space by intentionally crashing a spacecraft into it. After impact, ground-based observatories across the globe will turn their eyes to the skies to determine if this planetary defense test was successful. In this video, NASA visits Lowell Observatory to learn more about how astronomers have been tracking this double asteroid over the course of many years, and how they will document the orbital change post-impact. DART is a spacecraft designed to impact an asteroid as a test of technology. DART’s target asteroid is NOT a threat to Earth. This asteroid system is a perfect testing ground to see if intentionally crashing a spacecraft into an asteroid is an effective way to change its course, should a hazardous asteroid be discovered in the future.