SpaceX Archives

September 18, 2023September 18, 2023 by Nancy Atkinson

SpaceX Test Fires a Raptor Engine, Simulating a Lunar Landing

A Raptor Vacuum engine was successfully cold-started during a test in August 2023. Via SpaceX.

When NASA astronauts return to the surface of the Moon in the Artemis III mission, the plan is to use a modified SpaceX Starship as their lunar lander. NASA announced last week that SpaceX has now demonstrated an important capability of the vacuum-optimized Raptor engine that will be used for the lander: an extreme cold start.

A test last month successfully confirmed the engine can be started in the frigid conditions of space, even when the vehicle has spent an extended time in space, where temperatures will drop lower than a shorter low-Earth orbit mission. The Raptor vacuum engine was chilled to mimic conditions after a long coast period in space, and then was successfully fired.

August 28, 2023August 28, 2023 by Nancy Atkinson

Crew-7 Reaches the International Space Station

The SpaceX Dragon Endurance spacecraft, with four Crew-7 crew members aboard, approaches the space station for a docking on Sunday, Aug. 27, 2023. Credit: NASA TV

SpaceX Crew-7, the next group of four astronauts, are now on board the International Space Station, and this diverse crew is definitely putting “International” in the ISS. The new crew hails from four different countries: the US, Denmark, Japan and Russia. There will be 11 people on board the station for a few days before the Crew-6 foursome head back to Earth.

NASA has at least 200 science experiments and technology demonstrations queued up for Crew-7[‘s six months space, many of which will help prepare for the upcoming Artemis missions.

June 19, 2023June 19, 2023 by Andy Tomaswick

Even Though They’re Bigger, Generation 2 Starlinks are Fainter than Gen 1

We’ve filed plenty of reports here at UT warning about the potential impact of Starlink and similar satellites on the field of astronomy. We’ve gone so far as to point out that the granddaddy of space-based telescopes – Hubble – has already had some of its images tarnished by passing Starlink satellites. However, SpaceX has been aware of the problem and is working to limit their product’s brightness. The recently launched Gen2 satellites seem to have made a significant step forward – research from a team of amateur astronomers finds that the new Gen2 Starlinks are more than 10x fainter than previous Gen1 iterations.

May 22, 2023May 22, 2023 by Nancy Atkinson

Four Private Astronauts Are Now on the International Space Station

The SpaceX Dragon crew ship launches four Axiom Mission-2 astronauts to the space station from NASA’s Kennedy Space Center on May 21, 2023. Credit: SpaceX

On Sunday, May 21, the 4-person crew of Axiom Mission 2 (Ax-2) blasted off to the International Space Station (ISS) on board a SpaceX Crew Dragon, and today, May 22, the private astronaut crew boarded the International Space Station for a scheduled 10-day stay.

May 17, 2023May 17, 2023 by Nancy Atkinson

Kathy Lueders Was NASA's Top Human Spaceflight Official. Now She Works for SpaceX

Kathy Lueders, seen in the Launch Control Center at NASA’s Kennedy Space Center applauds during the SpaceX Demo-2 mission in May 2020, the first launch with astronauts on board the SpaceX Crew Dragon. At the time, Lueders the manager of NASA's Commercial Crew Program; she has now joined SpaceX. Credit: NASA

Another of NASA’s top human spaceflight officials has joined SpaceX. Kathy Leuders, the former associate administrator for NASA’s Space Operations Mission Directorate, retired from NASA on May 1 after 31 years of service. But this week, CNBC reports that Lueders has joined SpaceX at the company’s Starbase facility in Texas. She follows Bill Gerstenmaier, who retired from NASA in 2020 and became a senior executive at SpaceX as build and flight reliability vice president.

May 6, 2023May 6, 2023 by Nancy Atkinson

Watch a SpaceX Fairing's Fiery Re-Entry Through the Atmosphere

An artist's illustration of the Falcon Heavy. Will it send Mars One colonists to Mars?Image: SpaceX — An artist's illustration of the Falcon Heavy. Credit: SpaceX

During the recent ViaSat-3 launch on a Falcon Heavy rocket, SpaceX released the protective spacecraft fairing at the highest altitude ever attempted. Therefore, the fairing reached incredible speeds during its fiery re-entry through the Earth’s atmosphere. Fortunately, there was a camera on board so we could watch. At one point, the one half of the fairing was traveling 15 times faster than the speed of sound, releasing a trail of plasma in its wake as it returned to Earth.

April 29, 2023April 29, 2023 by Matt Williams

SpaceX Starship Effectively Grounded by FAA After in-Flight Explosion

SpaceX's Starship and Super Heavy booster stand tall on the Starbase launch pad in Texas. Source: SpaceX via YouTube

It was an exciting time when, two weeks ago, SpaceX got the clearance it needed to conduct its first orbital flight test with the Starship and Super Heavy launch system. After years of waiting, SN flight tests, static fire tests, and stacking and unstacking, the long-awaited test of the SN24 Starship and BN7 Booster prototype was on! For this flight, SpaceX hoped to achieve an altitude of at least 150 km (90 mi) above sea level, crossing the 100 km (62 mi) threshold that officially marks the boundary of “space” (aka. the Karman Line) and making a partial transit around the world before splashing down off the coast of Hawaii.

Unfortunately, things began to go awry a few minutes into the flight as the Starship prototype failed to separate from the booster, sending the rocket into a spin that ended in an explosion. While Musk and SpaceX issued statements that the test was largely successful and lots of valuable data was obtained, residents and environmental researchers claim the explosion caused damage to houses in the area and the local environment. In response, the FAA has launched a “mishap investigation,” temporarily grounding the Starship until the explosion’s impact can be assessed.

April 20, 2023April 20, 2023 by Nancy Atkinson

Aurora Hunter Todd Salat Captures a Bizarre Spiral Made by a SpaceX Fuel Dump

A mysterious spiral appeared in the sky over Donnelly Dome near Delta Junction, Alaska on April 15, 2023, caused by a fuel dump from a SpaceX rocket. Credit and copyright: Todd Salat/AuroraHunter.com

Astrophotographer Todd Salat was out in the early hours of April 15, 2023, hoping to capture an aurora display over Donnelly Dome near Delta Junction, Alaska. While the stunning aurora didn’t disappoint, Salat was in for a surprise: a weird spiral appeared in the sky over the summit.

“I had no idea of what I was seeing,” Salat said on his website, “but this phenomenon appears to be caused by engine exhaust from a SpaceX Transporter-7 mission that launched southward on the Falcon 9 about three hours earlier from the Vandenberg Space Force Base in California.”

April 20, 2023April 20, 2023 by Alan Boyle

SpaceX’s Starship Has a Glorious Liftoff — but Then Spins and Explodes

SpaceX’s Starship launch system lifted off on its first full-scale test flight today, rising majestically from its Texas launch pad but falling short of stage separation.

The uncrewed mission represented the most ambitious test yet for the world’s most powerful rocket — which eventually could send people to the moon and Mars, and even between spaceports on our own planet.

Liftoff from SpaceX’s Starbase complex at Boca Chica on the South Texas coast came at 8:33 a.m. CDT (9:33 a.m. EDT). The Starship system’s Super Heavy booster, powered by 33 methane-fueled Raptor rocket engines, rose into clear skies with a deafening roar and a blazing pillar of flame.

Hundreds of SpaceX employees cheered at the company’s California headquarters, but the crowd turned quiet three minutes into the flight when the Starship upper stage failed to separate from the booster as planned. The entire rocket spun in the air as a ground-based camera watched.

A minute later, SpaceX’s flight termination system destroyed both stages of the rocket as a safety measure. “Obviously, we wanted to make it all the way through, but to get this far, honestly, is amazing,” launch commentator Kate Tice said.

April 8, 2023April 8, 2023 by Matt Williams

Will the Starship be Ready for an April Launch?

The SN24 and BN7 fully stacked on the launch test pad at SpaceX's Starbase in Boca Chica, Texas. Credit: NASA

It’s been a long road, but it looks as though SpaceX may finally be ready for an orbital flight test with the Starship and Super Heavy. After months of waiting, static fire tests, stacking, and restacking, Elon Musk announced on March 16th that SpaceX could be ready to go with the SN24 and BN7 prototypes in “a few weeks,” pending approval from the Federal Aviation Administration (FAA). Musk announced via Twitter, saying, “launch timing depends on FAA license approval. Assuming that takes a few weeks, first launch attempt will be near end of third week of April, aka…”