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NASA Mars rover completes preflight checks ahead of this week’s launch
NASA’s Perseverance rover headed for Mars this week officially cleared all required Flight Readiness Reviews, pushing the mission one step closer to its launch pad rollout and liftoff. Launch provider ULA (United Launch Alliance) announced the milestone earlier today.
“The Launch Readiness Review (LRR) has given the approval to continue preparations for Thursday’s liftoff of the United Launch Alliance Atlas V rocket carrying NASA’s Mars 2020 mission,” ULA’s official mission page stated. “Leadership from ULA, NASA and the Space Force assessed the readiness of the rocket, payload and mission assets, discussed the status of pre-flight processing work, heard technical overviews of the countdown and flight, and previewed the weather forecast that continues to be favorable with an 80 percent chance of acceptable conditions. At the conclusion of the meeting, senior leaders were polled and gave a unanimous ready status for launch, then signed the Launch Readiness Certificate.”
“I just want to say that the launch readiness review is complete and we are ‘go’ for launch.” Administrator @JimBridenstine shares the latest for the July 30 launch of our @NASAPesereve rover. #CountdownToMars https://t.co/JXscvTFIRt pic.twitter.com/yVEHYrHq4J
— NASA (@NASA) July 27, 2020
NASA followed with two separate live-streamed conferences in an effort to both inform and engage the public about the mission’s details and goals. During the first pre-launch event, key executives for the mission expressed their pride in the Perseverance rover team while making particular note of the challenging circumstances faced during the COVID-19 pandemic. “Every day was taking the kids to work day,” mused Omar Baez, NASA’s Senior Launch Director.
Keeping the 2020 Mars rover mission on schedule has been vitally important compared to other launches due to the timing involved with the seven-month journey to the red planet. “We have a 20 day planetary launch window, and if we miss it, we’re pushing out another couple of years,” explained Matt Wallace, Perseverance’s Deputy Project Manager, during the first conference. NASA’s second conference of the day focused on the engineering details behind the rover’s instruments to fulfill its three primary missions of seeking signs of life, collecting/caching samples, and testing future technologies.
“I would have never thought that a launch director would be working from home, and I’ve done that for the last 5 months.” @NASA_LSP Launch Director Omar Baez shares how the whole @NASAPersevere team adjusted to work in today’s environment. #CountdownToMars pic.twitter.com/rxO49EG5SL
— NASA (@NASA) July 27, 2020
The 2020 rover has many unique instruments that make it stand out from NASA’s other rovers and landers currently residing on Mars. As part of making the search for ancient microbial life its mission priority, Perseverance has a large robotic arm with a multi-bit drill attached for gathering and storing scientifically interesting samples. These specimens will later be brought to Earth as part of a “sample return” mission.
NASA’s newest Mars rover will additionally have two technology tests aboard – one that generates oxygen from the planet’s carbon dioxide atmosphere, the other a small helicopter for gathering aerial data, and enabling more widespread travel possibilities. Perhaps most relatable to many humans’ day-to-day, however, is Perseverance’s “selfie” capabilities. Not just limited to snaps surrounded by regolith and red mountains, once descent and landing begin from Martian orbit, the rover’s numerous cameras will capture the entire event on video and send the footage back to NASA’s team and the public alike.
Perseverance will accomplish its tasks using power provided by a plutonium-238 nuclear energy source with a 14-year lifespan. As the isotope decays, heat is generated and converted into electricity to charge the rover’s batteries. This part of the mission was activated and loaded with Perseverance into its ULA Atlas V rocket last week.
NASA plans the mission’s launch pad rollout tomorrow with an early morning liftoff on Thursday, July 30th.
Elon Musk
SpaceX weighs Nasdaq listing as company explores early index entry: report
The company is reportedly seeking early inclusion in the Nasdaq-100 index.
Elon Musk’s SpaceX is reportedly leaning toward listing its shares on the Nasdaq for a potential initial public offering (IPO) that could become the largest in history.
As per a recent report, the company is reportedly seeking early inclusion in the Nasdaq-100 index. The update was reported by Reuters, citing people familiar with the matter.
According to the publication, SpaceX is considering Nasdaq as the venue for its eventual IPO, though the New York Stock Exchange is also competing for the listing. Neither exchange has reportedly been informed of a final decision.
Reuters has previously reported that SpaceX could pursue an IPO as early as June, though the company’s plans could still change.
One of the publication’s sources also suggested that SpaceX is targeting a valuation of about $1.75 trillion for its IPO. At that level, the company would rank among the largest publicly traded firms in the United States by market capitalization.
Nasdaq has proposed a rule change that could accelerate the inclusion of newly listed megacap companies into the Nasdaq-100 index.
Under the proposed “Fast Entry” rule, a newly listed company could qualify for the index in less than a month if its market capitalization ranks among the top 40 companies already included in the Nasdaq-100.
If SpaceX is successful in achieving its target valuation of $1.75 trillion, it would become the sixth-largest company by market value in the United States, at least based on recent share prices.
Newly listed companies typically have to wait up to a year before becoming eligible for major indexes such as the Nasdaq-100 or S&P 500.
Inclusion in a major index can significantly broaden a company’s shareholder base because many institutional investors purchase shares through index-tracking funds.
According to Reuters, Nasdaq’s proposed fast-track rule is partly intended to attract highly valued private companies such as SpaceX, OpenAI, and Anthropic to list on the exchange.
Elon Musk
The Boring Company’s Prufrock-2 emerges after completing new Vegas Loop tunnel
The new tunnel measures 2.28 miles, making it the company’s longest single Vegas Loop tunnel to date.
The Boring Company announced that its Prufrock-2 tunnel boring machine (TBM) has completed another Vegas Loop tunnel in Las Vegas. The company shared the update in a post on social media platform X.
According to The Boring Company’s post, the new tunnel measures 2.28 miles, making it the company’s longest single Vegas Loop tunnel to date.
The new tunnel marks the fourth tunnel constructed near Westgate Las Vegas as the Vegas Loop network continues expanding across the city.
The Boring Company also noted that the new tunnel surpassed its previous internal record of 2.26 miles for a single Vegas Loop segment.
Construction of the tunnel involved moving roughly 68,000 cubic yards of dirt. The excavation process also used about 4.8 miles of continuous conveyor belt, powered by six motors totaling 825 horsepower.
The Boring Company’s Prufrock-series all-electric tunnel boring machines are designed to support the rapid expansion of company’s underground transportation projects, including the growing Vegas Loop network. Prufrock machines are designed for reusability, thanks in no small part to their capability to be deployed and retrieved easily through their “porposing” feature.
The Vegas Loop, specifically the Las Vegas Convention Center (LVCC) Loop segment, has already been used during major events. Most recently, the LVCC Loop supported the 2026 CONEXPO-CON/AGG construction trade show, which was held from March 3-7, 2026.
As per The Boring Company, the LVCC Loop transported roughly 82,000 passengers across the convention center campus during the event’s duration.
CONEXPO-CON/AGG is one of the largest construction trade shows in North America, drawing more than 140,000 construction professionals from 128 countries this year.
The LVCC Loop forms the initial segment of the broader Vegas Loop network, which remains under active development as The Boring Company continues building new tunnels throughout the city.
News
Tesla gathers Cybercab fleet in Gigafactory Texas
Images and video of the Cybercab fleet were shared by longtime Giga Texas observer Joe Tegtmeyer in posts on social media platform X.
Tesla appears to be assembling a growing number of Cybercabs at Gigafactory Texas as preparations continue for the vehicle’s mass production. Recent footage shared online has shown over 30 Cybercabs being transported by trucks or staged near testing areas at the facility.
The images and video were shared by longtime Giga Texas observer and drone operator Joe Tegtmeyer in posts on social media platform X.
Interestingly enough, Tegtmeyer noted that many of the Cybercabs being loaded onto transport trucks were still equipped with steering wheels. This suggests that the vehicles are likely testing units rather than the final driverless configuration expected for the company’s Robotaxi service.
The vehicles could potentially be headed to testing sites across the United States as Tesla prepares to expand its Robotaxi fleet.
Additional footage captured at Gigafactory Texas also showed the Cybercab’s side and rear camera washer system operating as vehicles were being loaded onto transport trucks.
The growing number of Cybercabs at Giga Texas comes amidst the company’s announcement that the first production Cybercab has been produced at the facility. Full Cybercab production is expected to begin in April.
The vehicle is expected to play a central role in Tesla’s Robotaxi ambitions as the company looks to expand autonomous ride-hailing operations beyond its early deployments using Model Y vehicles.
Tesla has also linked Cybercab production to its proposed Unboxed manufacturing process, which assembles large vehicle modules separately before integrating them. The approach is intended to reduce production costs and accelerate output.
Musk has also noted that the Cybercab’s ramp will likely begin slowly due to the number of new components and manufacturing steps involved. However, he stated that once the process matures, Cybercab production could scale quickly.