

Space
Watch NASA’s Mars 2020 Rover go for a test drive in preparation for landing on Martian soil
NASA engineers witnessed their newest Mars rover take its first steps in preparation for its next mission that will search for fossilized remains of ancient life on the red planet.
The test took place inside the Spacecraft Assembly Facility clean room at NASA’s Jet Propulsion Laboratory in Pasadena, California. Engineers clad in white bunny suits—special cleanroom attire worn in order to keep the rover’s delicate instruments very, very clean—watched the yet-to-be-named rover inch forward as part of the crucial pre-flight test, which lasted just over 10-hours.
“Mars 2020 has earned its driver’s license,” Rich Rieber, the lead mobility systems engineer for Mars 2020, said in a news release. “The test unambiguously proved that the rover can operate under its own weight and demonstrated many of the autonomous-navigation functions for the first time. This is a major milestone for Mars 2020.”
During the test, NASA engineers noticed no problems, as the six-wheeled rover successfully performed all its required tasks: it rolled forward and backward and even pirouetted. According to NASA, the rover’s systems, all working in concert, enabled it to steer, turn and drive with ease.
The testing of the vehicle’s autonomous navigation system went well. Since these systems performed perfectly under Earth’s gravity, engineers expect them to perform just as well under Mars’ gravity, which is only 38% of what we experience on Earth.
The test went so well that NASA says the “next time the Mars 2020 rover drives, it will be rolling over Martian soil.” The Mars 2020 rover is scheduled to launch in July 2020, followed by a landing in Jezero Crater on February 18, 2021.
“A rover needs to rove, and Mars 2020 did that,” John McNamee, project manager for Mars 2020, said in a statement. “We can’t wait to put some red Martian dirt under its wheels.”
During its initial test drive, the rover crept forward in small, 3-feet ( 1-meter) increments, enabling the engineers to properly assess its movement and steering abilities. The rover also drove over small ramps designed to simulate uneven Martian terrain.
Engineers were also able to collect data from the vehicle’s Radar Imager for Mars’ Subsurface Experiment (RIMFAX)—an instrument that uses radar waves to scan the ground below the rover. Depending on the terrain, once on Mars, RIMFAX will penetrate the ground, probing the red planet’s subsurface to depths of more than 30-feet (or 10-meters).
Curiosity, the Mars 2020 rover’s predecessor currently roaming around on Mars, is predominantly commanded by people back on Earth. However, the rover does have the ability to autonomously choose where to fire its laser spectrometer. As part of its onboard science arsenal, the instrument—called ChemCam—is designed to analyze the chemical composition of nearby rocks and soil.
Mars 2020, on the other hand, will be more independent than any of its predecessors. Equipped with advanced auto-navigation software, the rover will drive with the help of a dedicated onboard computer operating on data collected from the vehicle’s high-resolution, wide-field color cameras.
NASA engineers estimate that the rover will travel an average of 650 feet (200 meters) per day. For comparison, Curiosity’s current distance record for a single day is 702 feet (214 meters), although that’s not typical. The Mars 2020 rover will also be sporting more durable wheels. Curiosity’s wheels are visibly worn after seven years on the Martian surface; engineers hope Mars 2020’s wheels will hold up better.
Once on Mars, the rover will land at Jezero Crater—a former lake bed, rich in mineral deposits known for preserving microfossils here on Earth. In this crater, the rover will search for any signs that life may have once existed on Mars.
While acting as a remote scientist, the rover will unlock clues about the planet’s climate and geology as well as collect samples that will be returned to Earth sometime in the future.
Following the loss of the Opportunity rover, Curiosity has been the sole robot roaming the Martian surface. That will change in 2021, but they won’t be the only ones.
They will be joined by another: The European Space Agency is teaming up with Russia to send their version of the Mars 2020 rover. The Rosalind Franklin ExoMars rover will arrive on Mars at a soon-to-be-announced location, in 2021.

News
SpaceX readies to rescue astronauts from International Space Station

SpaceX is readying to launch the Crew-10 mission this evening, which will bring home U.S. astronauts Butch Wilmore and Suni Williams, who have been stuck on the International Space Station for nine months.
SpaceX is working alongside NASA to bring the two astronauts home, and all systems and weather conditions are looking ideal to launch the mission this evening from the Kennedy Space Center in Florida.
All systems are looking good and weather is exceptional for tonight’s Falcon 9 launch of @NASA‘s Crew-10 to the @Space_Station → https://t.co/VPdhVwQFNJ pic.twitter.com/wZ9LvZAnYn
— SpaceX (@SpaceX) March 14, 2025
Boeing was originally tasked with the rescue mission.
The company sent a Starliner aircraft to the ISS in late September in an effort to bring Williams and Wilmore home. However, malfunctioning thrusters and other issues on the Starliner aircraft prevented NASA from giving the green light to the astronauts to board and come home.
SpaceX was then tasked with bringing the two home, and it appears they will be on their way shortly.
The launch was intended to occur on Wednesday, but a last-minute problem with the rocket’s ground systems forced SpaceX and NASA to delay until at least Friday. Things are looking more ideal for a launch this evening.
The launch is targeted for 7:03 p.m. ET, but another backup opportunity is available tomorrow, March 15, at 6:41 p.m.
SpaceX writes about the Dragon spacecraft that will be used for the mission:
“The Dragon spacecraft supporting this mission previously flew NASA’s Crew-3, Crew-5, and Crew-7 missions to and from the space station. This will be the second flight for the first stage booster supporting this mission, which previously launched the SES 03b mPOWER-e mission. Following stage separation, Falcon 9’s first stage will land on Landing Zone 1 (LZ-1) at Cape Canaveral Space Force Station.”
The mission will not only aim to bring the two astronauts who have been stranded for nine months home, but it will also conduct new research to prepare for human exploration beyond low-Earth orbit.
If Crew-10 launches at the planned time this evening, it will dock to the ISS at 11:30 p.m. ET on Saturday night.
News
SpaceX explains reasoning for Starship 7 upper stage loss

SpaceX is set to launch its eighth test flight of the Starship rocket this Friday. Ahead of the most recent test in what could be the most revolutionary spaceflight program since NASA’s Apollo, SpaceX is clearing the air about what went wrong during its previous test flight, which resulted in the loss of the second stage during its ascension.
On January 16, SpaceX successfully launched Starship while also completing its second successful catch of the lower-stage booster.
However, the flight did not go as smoothly as initially anticipated, as the company lost Starship’s upper stage roughly eight minutes and twenty seconds into flight.
Now, the company is clarifying what happened that led to the demise of the upper stage, which SpaceX has identified with the recognition of “flashes” that occurred after vehicle separation.
SpaceX completes second catch of lower stage, but loses Starship
SpaceX says that a flash was observed roughly two minutes into its burn after vehicle separation. The flash, along with sensors that was a pressure rise in the attic, indicated a leak:
“Approximately two minutes into its burn, a flash was observed in the aft section of the vehicle near one of the Raptor vacuum engines. This aft section, commonly referred to as the attic, is an unpressurized area between the bottom of the liquid oxygen tank and the aft heatshield. Sensors in the attic detected a pressure rise indicative of a leak after the flash was seen.”
This was not the only flash that was observed. Two minutes after the first, another flash was seen, but this one was followed by sustained fires in the attic. These fires caused Starship’s engines to perform a controlled shutdown:
“These eventually caused all but one of Starship’s engines to execute controlled shut down sequences and ultimately led to a loss of communication with the ship. Telemetry from the vehicle was last received just over eight minutes and 20 seconds into flight.”
SpaceX clarified that Starship was destroyed and communication with the ship was lost before it was able to initiate any destruct rules for its Autonomous Flight Safety System. The company said this was “fully healthy when communication was lost.”
It went on to say that the “most probable root cause” of the loss was likely due to an environment not seen during testing:
“The most probable root cause for the loss of ship was identified as a harmonic response several times stronger in flight than had been seen during testing, which led to increased stress on hardware in the propulsion system. The subsequent propellant leaks exceeded the venting capability of the ship’s attic area and resulted in sustained fires.”
Nevertheless, Starship will launch for the eighth time soon, with CEO Elon Musk noting that the most likely date will be Friday. This could be the second of potentially 25 Starship launches planned for 2025.
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News
SpaceX Starship’s next test flight gets target date – Here’s when it could lift off

SpaceX’s Starship will soon be lifting off for its eighth test flight, according to federal airspace advisory listings, as the Elon Musk-headed company will look to rebound from its most recent launch that ended in the destruction of its rocket.
SpaceX has listed its launch window as starting on Wednesday, February 26, at 5:30 p.m. EST. The company will look to launch between then and on any of the various backup opportunities that will be available through Thursday, March 6.
Coming off of what is one of its most eventful missions yet with the seventh Starship launch, the company is going to look to improve in one facet while aiming to repeat another. First, SpaceX said it is aiming to complete yet another catch of the first-stage booster, something it has now accomplished on two other occasions.
However, the last launch also resulted in the complete loss of the rocket itself, which was destroyed during its ascension phase. Debris from the exploded rocket fell over the Caribbean island of Turks and Caicos, lighting up the sky in what was a stunning display of a learning experience for the aerospace company:
?Absolutely insane video of Starship coming down over Turks & Caicospic.twitter.com/28wfgdKJuN
— TESLARATI (@Teslarati) January 16, 2025
The only thing that would potentially delay Starship’s next launch is the lack of closure to the previous investigation, which dealt with finding the reasoning for the rocket’s explosion.
SpaceX aimed to explain what happened shortly after the destruction of Starship after the seventh test flight:
“Following stage separation, the Starship upper stage successfully lit all six Raptor engines and performed its ascent burn to space. Prior to the burn’s completion, telemetry was lost with the vehicle after approximately eight and a half minutes of flight. Initial data indicates a fire developed in the aft section of the ship, leading to a rapid unscheduled disassembly with debris falling into the Atlantic Ocean within the predefined hazard areas.”
Musk also said that a leak of oxygen or fuel in the cavity above the ship engine firewall could have been responsible for the loss.
He also expected Starship to return to launch in February.
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