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Future Mars astronauts’ diet will likely include space lettuce

Future astronauts on Mars could grow their own lettuce for salads. Credit: NASA

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Elon Musk wants to send a million people to Mars, and we would love to see that happen sooner rather than later.

But what will we feed them?

Since 2014, NASA has been busy studying the development of different types of plants on the space station. Using a special plant-growth chamber, called Veggie, the agency is trying to perfect the art of making space salad.

A new study published last week in the journal Frontiers in Plant Science explains that lettuce grown in space is as nutritious and tasty as any variety grown on Earth.

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“The ability to grow safe, fresh food to supplement packaged foods of astronauts in space has been an important goal for NASA,” reads the paper.

Currently, astronauts on the space station rely on prepackaged food to sustain them during their time on orbit. (They also enjoy occasional treats sent up on cargo resupply missions, such as fresh fruit.) But with the help of plant chambers like Veggie, astronauts could one day crunch on healthy salads.

Veggie is a special plant growth chamber installed on the ISS to test how well crops grow in space. Credit: NASA

Packaged foods are nutritious enough, but do not have everything a person needs (or wants). The ability to have fresh fruits and vegetables on Mars could do wonders for an astronaut’s health. Not only do plants provide key nutrients, but they could also help life-support systems on any potential Mars city by helping to scrub carbon dioxide from the atmosphere.

NASA and other space agencies around the world have been studying plants in space almost as long as we’ve been sending astronauts to space. But with the construction of the space station and advent of the veggie chamber, the research can track growth over longer periods and with more crops.

Organisms grow differently in space, so understanding how plants respond to microgravity is an important step toward ensuring that future astronauts will have the ability to grow their own crops in space, especially as we start sending humans back to the moon and onto Mars.

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From 2014 to 2016, researchers sent batches of “Outredgeous” red romaine lettuce seeds to space, to see if and how well they grew inside the Veggie chamber. In space there’s no gravity or soil or rain like the plants here on Earth rely on. There’s also 16 sun rises and sun sets in space, so the crops will need steady light to help them grow. Where does that come from?

The Veggie chamber is outfitted with special LED lights, tuned to a specific wavelength in order to help the plants grow. (Set to 16 hours of  light and 8 hours of darkness.) Plant pillows are placed in the chamber, each equipped with its own water supply, fertilizer, and seeds. The astronauts can control the amount of water each plant receives and other settings like humidity.

The lettuce plants were allowed to grow for approximately one month before being harvested and sent back to Earth for testing. (Yes, the astronauts were allow to eat some, after they were deemed safe.)

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When compared to ground-based experiments, researchers found that the crops contained the same level of nutrients that the terrestrial crops did. (Not to mention the same microbes.) The only recorded differences was a slight variation in mineral content, in particular in iron, potassium, and zinc.

A crop of red lettuce grows inside the Veggie plant chamber. Credit: NASA

But what about other vegetables? Growing lettuce is easy, growing things like peppers and tomatoes are a bit more tricky. Mostly because they take a lot longer to grow — 80 days versus 30. 

To date, NASA has grown five different varieties of leafy green in the Veggie chamber. (The agency is also researching other plants across several experiments.)

NASA’s plant researchers are busy designing the next iterations of their plant experiments, with plans to send both chili peppers and tomatoes to the orbital outpost later this year and early next year. If those grow successfully, we could soon see the first space salads.

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I write about space, science, and future tech.

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SpaceX makes first acquisition post-IPO

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Credit: SpaceX

SpaceX has exercised its option to acquire Cursor, the innovative AI coding company, in an all-stock transaction valued at $60 billion. The deal, announced on June 16, marks a significant step in SpaceX’s expansion into advanced artificial intelligence, building on months of close collaboration between the companies.

Cursor, officially operated by Anysphere, Inc., is an AI-native code editor and coding agent designed to transform software development. Founded in 2022 by a group of MIT graduates in San Francisco, Cursor builds on the familiar foundation of Visual Studio Code but integrates powerful AI capabilities directly into the core experience.

Unlike traditional code editors or simple extensions, Cursor functions as a full “coding agent” that turns natural-language instructions into actionable code.

Developers interact with Cursor through features like its Composer agent, which can search entire codebases, edit multiple files, run terminal commands, debug issues, and complete complex multi-step programming tasks autonomously.

Users describe high-level goals, such as “build a scalable API endpoint with authentication,” and the AI plans, implements, tests, and refines the solution while the human oversees decisions. Additional tools include advanced autocomplete (Tab), context-aware chat, and infrastructure for handling billions of daily requests.

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The platform has gained considerable traction, surpassing $3 billion in annual recurring revenue by early 2026 and earning adoption by over half of the Fortune 500 companies. Its agentic approach accelerates development dramatically, allowing engineers to focus on architecture and creativity rather than repetitive coding.

The acquisition integrates Cursor’s leading product, expert team of roughly 300 engineers, and distribution network among top software developers with SpaceX’s unparalleled computational resources. SpaceX’s Colossus supercomputer, equivalent to a million H100 GPUs, has already powered joint training of next-generation models. These models are expected to launch soon within Cursor and SpaceX’s Grok Build environment.

This combination positions SpaceX to develop the world’s most capable AI systems for coding and knowledge work. Access to Cursor’s real-world usage data from millions of professional developers provides unparalleled feedback loops for model improvement. Training on Colossus enables rapid iteration on massive datasets, potentially creating AI that outperforms current leaders in reliability, context handling, and complex reasoning.

For SpaceX, the benefits extend far beyond software tools. Rocket engineering, satellite constellation management, autonomous flight systems, and Starship development involve millions of lines of highly specialized, safety-critical code.

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Cursor’s AI agents, supercharged by proprietary models trained on SpaceX’s domain expertise, could slash development timelines, reduce errors, and enable faster innovation cycles. This vertical integration of AI tooling strengthens SpaceX’s competitive edge in both aerospace and the broader AI race, complementing its xAI initiatives.

The deal reflects the exploding value of AI-native developer platforms. By owning Cursor outright, SpaceX secures a strategic talent pool and product pipeline that will accelerate internal projects while potentially offering enhanced tools to the wider engineering community. As AI continues reshaping software creation, this acquisition underscores SpaceX’s commitment to leveraging cutting-edge technology for ambitious goals, from Mars colonization to global connectivity.

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Investor's Corner

Tesla and SpaceX’s biggest bull just placed a massive $1B bet on the stock

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Ron Baron on Tesla stock

Renowned investor Ron Baron, founder and CEO of Baron Capital, has once again demonstrated his unwavering faith in Elon Musk’s ventures.

Just after SpaceX’s record-breaking IPO, Baron announced he purchased an additional $1 billion in SpaceX (NASDAQ: SPCX) shares. This move pushes Baron Capital’s total holdings in the company to a staggering $25 billion in market value, underscoring one of the most successful private-to-public investment stories in recent history.

Baron’s relationship with SpaceX dates back to 2017, when his firm began investing approximately $1.75–2 billion through secondary markets and employee tender offers at valuations around $20–22 billion.

By the time of the IPO, which valued SpaceX at over $2 trillion with shares closing near $161, those early stakes had generated more than $13 billion in unrealized gains. Post-IPO, Baron’s position ballooned further, reflecting the company’s meteoric rise driven by reusable rocketry, Starlink’s global satellite internet constellation, Starshield defense applications, and ambitious plans for orbital infrastructure.

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In a recent interview, Baron articulated his bullish outlook with characteristic enthusiasm.

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“I think we’re going to make hundreds of billions of dollars,” he stated, emphasizing that SpaceX’s achievements in rocketry and satellite technology are “not possible for anyone else to accomplish.” He envisions the company as a cornerstone of humanity’s multi-planetary future, potentially reaching valuations of $10–30 trillion within 10–15 years.

Baron has repeatedly affirmed he has no plans to sell, viewing SpaceX as a “lifetime investment” alongside Tesla.

Tesla bull Ron Baron reveals $100M SpaceX investment, sees 3-5x return on TSLA

This conviction stems from SpaceX’s unparalleled execution. The company has revolutionized access to space with Falcon 9 reusability, deployed thousands of Starlink satellites, and is advancing Starship for Mars missions and point-to-point Earth transport.

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Baron highlights emerging opportunities like space-based AI data centers and direct-to-cell satellite connectivity, positioning SpaceX at the forefront of a new space economy projected to generate trillions in value.

Critics may question the lofty projections amid high valuations and execution risks, but Baron’s track record speaks volumes. His Tesla holdings, initiated in the mid-2010s, have also delivered outsized returns. As one of the largest institutional holders of SpaceX pre-IPO, Baron Capital’s funds, such as Baron Partners, benefited immensely from valuation markups.

Baron’s $1 billion IPO purchase signals deep confidence in SpaceX’s post-IPO trajectory. In an era of short-term market noise, his strategy exemplifies patient capital: backing visionary leadership and transformative technology.

For investors watching the space sector, it serves as a powerful endorsement that the final frontier may indeed yield the next great wealth-creation engine. As Baron puts it, SpaceX isn’t just building rockets—it’s trying to “save humanity” by expanding our horizons beyond Earth.

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Elon Musk

SpaceX’s Elon Musk relieves worries about orbital data centers

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Rendering of Elon Musk overlooking a Starship fleet (Credit: Grok)
Rendering of Elon Musk overlooking a Starship fleet (Credit: Grok)

SpaceX CEO Elon Musk recently confronted worries about orbital data centers and launching satellites in mass quantities in space, as some voiced concerns about crowding.

Musk’s SpaceX plans to combat the issue of needing data centers by launching them into space instead of taking up valuable real estate on Earth. It has been a major point of SpaceX’s future, including its looming IPO, which could be the largest ever.

In a recent interview filmed at SpaceX’s Starlink terminal factory in Bastrop, Texas, Elon Musk directly addressed concerns that deploying large numbers of AI satellites for orbital data centers could crowd Earth’s orbit. His message was straightforward and reassuring: space is vast beyond human intuition.

“Space is really big,” Musk said. “It’s not like space is gonna get crowded. Space is enormous. If you actually look at it relative to the Earth, the satellites are so tiny you can’t even see them.” He emphasized that even zooming in makes a satellite appear large, but from a planetary perspective, they are minuscule specks.

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Musk pointed to SpaceX’s real-world experience operating roughly 10,000 Starlink satellites as evidence that large constellations can be managed safely. “We’ve got a pretty good idea of how to operate just really large constellations and do it safely,” he noted. SpaceX remains the only operator with meaningful experience at this scale, giving the company unique insight into tight orbital packing without compromising safety

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The discussion highlighted SpaceX’s plans for “AI1” satellites—essentially orbiting racks of AI compute powered by massive solar arrays and cooled via radiative panels in space’s vacuum.

These satellites leverage proven Starlink V3 technology, making them simpler to design than communications satellites. A first-generation unit targets around 150 kW peak power, with a 70-meter wingspan for solar panels and radiators. Laser links will connect them to each other and the Starlink network, delivering low-latency access (on the order of a few milliseconds from low-Earth orbit).

FCC accepts SpaceX filing for 1 million orbital data center plan

Musk framed orbital data centers as a practical solution to Earth’s constraints on AI growth. Ground-based facilities face power shortages, water demands for cooling, and grid limitations. In space, constant sunlight (no day-night cycle), vacuum radiative cooling, and abundant solar energy offer clear advantages.

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Production will ramp up at an expanded “Gigasat” factory in Bastrop, with solar manufacturing already underway and full AI satellite output expected at reasonable volume by the end of 2027. Starship’s rapid, high-volume launch capability, aiming for multiple flights per hour, will make massive deployment feasible.

Critics sometimes raise risks like space debris or Kessler syndrome, but Musk’s response underscores scale: even a million satellites would represent an imperceptible fraction of available orbital volume when viewed against Earth’s size. SpaceX’s automated collision avoidance and deorbiting designs for Starlink further mitigate concerns.

This vision ties into broader ambitions. Musk sees orbital AI compute as a step toward harnessing more of the Sun’s energy, advancing humanity on the Kardashev scale from a Type 0 civilization toward Type 1 and eventually Type 2. By moving power-hungry data centers off-planet, SpaceX aims to unlock orders-of-magnitude more compute while preserving Earth’s resources.

Musk’s comments should ease public anxiety. With proven operational expertise, incremental engineering, and the immensity of space itself, orbital data centers represent not overcrowding, but smart expansion into the final frontier.

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