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SpaceX CEO Elon Musk proposes Starship, Starlink tech for Solar System tour

Starship ignites its Raptor engines during a close approach to Titan. (NASA/SpaceX/Teslarati)

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SpaceX CEO Elon Musk has proposed an unusual approach to conducting a robotic survey of the Solar System’s major outer planets, asteroids, and comets, requiring a stripped-down Starship with a minimalist payload of Starlink satellites modified for interplanetary cruises and high-resolution cameras.

To enable this arrangement, it sounds like an expendable variant of Starship would have to be designed and built, cutting as much extraneous mass as possible to put as much energy as physically possible into its payloads. Outer planets – those lying beyond the Solar System’s main asteroid belt – are a minimum of 400 million miles (~650 million km) from Earth and stretch out to bodies like 2014 MU69 (below) at 4+ billion miles (6.8+ billion km) beyond Earth’s orbit. To travel those truly absurd distances, the time-to-destination can often be measured in decades, a timeframe that is physically impossible to shrink without hugely powerful rockets like BFR. Even then, SpaceX would face major hurdles to pull off Musk’s impromptu mission design.

New Horizons, the tiny but amazing spacecraft responsible for the first-ever close-up photos of Pluto and (more recently) the bizarre MU69 comet/asteroid, is perhaps the best categorical example of what Musk is proposing. Weighing less than 480 kg (1060 lb) and powered by a radioisotope generator (RTG), the spacecraft was launched in January 2006 and – after a single gravity assist around Jupiter – flew by Pluto a bit less than ten years later in July 2015, traveling a blistering ~13.8 km/s (8.6 mi/s).

After traveling several billion miles over nearly a decade, New Horizons completed its main mission, returning spectacular views of the unexpectedly exotic Pluto. (NASA/JPL)

Coincidentally, at least the first prototypes of SpaceX’s Starlink satellite constellation weighed around 400 kg (880 lb) during their March 2018 launch, just shy of New Horizons’ own dry mass. Major differences abound, however. Most notably, Starlink satellites will be powered by solar arrays optimized for energy generation at Earth’s distance from the sun, compared to New Horizons’ RTG reactor. At distances beyond Saturn, reliance on solar power would be an extraordinary challenge for any spacecraft hoping to do more than simply survive. For example, due to certain unforgiving laws of physics, New Horizons would receive – quite literally – 0.06% the solar energy per unit of area at Pluto.

To produce the scant ~300 Watts New Horizon receives from its nuclear power source, a single Starlink satellite would need a minimum of 1400 m^2 (~15,000 ft^2) of high-efficiency solar panels to survive and power a minimal suite of instruments and communications hardware. Assuming an extraordinary 170 g/m^2 solar array as proposed by Alta Devices, a Starlink satellite would need solar cells weighing no less than 250 kg (550 lb) total to operate at Pluto, a mass that absolutely does not factor in the complex mechanisms necessary to deploy a third of an acre of solar panels from an area of just a few cubic meters.

Frankly put, solar-powered exploration beyond the orbit of Jupiter and perhaps Saturn becomes almost inconceivably difficult. Further, the above numbers don’t even take into account each Starlink spacecraft’s electric thrusters, which would need several times more solar panels or massive batteries (themselves needing heaters) to operate at an optimal power level for long, uninterrupted periods of time, a necessity for electric propulsion. Several billion miles closer to the sun, in the main asteroid belt or around the gas giants Jupiter and Saturn, solar power is still extremely challenging but not impossible. NASA’s Juno spacecraft, the first solar-powered vehicle to visit the outer planets, uses solar arrays with an area of 72 m^2 (800 ft^2) to produce less than 500 Watts of power around Jupiter, compared to the ~14 kW they could produce around Earth.

Juno’s solar arrays are an impressive ~28% efficient but still weigh 340 kg (750 lb) and produce less than 500 Watts of power around Jupiter. (NASA)

At the end of the day, SpaceX’s Starlink satellites and Starship-based boost stage would need to undergo radical (and thus expensive) redesigns to accomplish such an ambitious ‘tour’ of the Outer Solar System, quite possibly also requiring the development and integration of wholly new technologies and exploration strategies to get off the ground. While the challenges are immense, the fact that Mr. Musk is already expressing interest in supporting such an exploratory, science-focused mission inspires confidence in the many future benefits that could soon be derived from Starlink and Starship, if successfully developed. Assuming missions that remain within the Inner Solar System, an exploration architecture as described by Musk is already readily doable and wouldn’t need the major modifications and leaps necessary for Outer Solar System ventures. Possible destinations where it could be practical include the Moon, Mars, Venus, the main asteroid belt (i.e. Ceres, Vesta, etc.), and many others.

If SpaceX can find a way to get both Starlink and Starship off the ground and into operational configurations, the future of space exploration – both human and robotic – could be extraordinarily bright.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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SpaceX President Gwynne Shotwell details xAI power pledge at White House event

The commitment was announced during an event with United States President Donald Trump.

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Credit: xAI

SpaceX President Gwynne Shotwell stated that xAI will develop 1.2 gigawatts of power at its Memphis-area AI supercomputer site as part of the White House’s new “Ratepayer Protection Pledge.” 

The commitment was announced during an event with United States President Donald Trump.

During the White House event, Shotwell stated that xAI’s AI data center near Memphis would include a major energy installation designed to support the facility’s power needs.

“As you know, xAI builds huge supercomputers and data centers and we build them fast. Currently, we’re building one on the Tennessee-Mississippi state line. As part of today’s commitment, we will take extensive additional steps to continue to reduce the costs of electricity for our neighbors… 

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“xAI will therefore commit to develop 1.2 GW of power as our supercomputer’s primary power source. That will be for every additional data center as well. We will expand what is already the largest global Megapack power installation in the world,” Shotwell said.

She added that the system would provide significant backup power capacity.

“The installation will provide enough backup power to power the city of Memphis, and more than sufficient energy to power the town of Southaven, Mississippi where the data center resides. We will build new substations and invest in electrical infrastructure to provide stability to the area’s grid.”

Shotwell also noted that xAI will be supporting the area’s water supply as well. 

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“We haven’t talked about it yet, but this is actually quite important. We will build state-of-the-art water recycling plants that will protect approximately 4.7 billion gallons of water from the Memphis aquifer each year. And we will employ thousands of American workers from around the city of Memphis on both sides of the TN-MS border,” she noted. 

The Ratepayer Protection Pledge was introduced as part of the federal government’s effort to address concerns about rising electricity costs tied to large AI data centers, as noted in an Insider report. Under the agreement, companies developing major AI infrastructure projects committed to covering their own power generation needs and avoiding additional costs for local ratepayers.

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SpaceX to launch Starlink V2 satellites on Starship starting 2027

The update was shared by SpaceX President Gwynne Shotwell and Starlink Vice President Mike Nicolls.

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Credit: SpaceX

SpaceX is looking to start launching its next-generation Starlink V2 satellites in mid-2027 using Starship.

The update was shared by SpaceX President Gwynne Shotwell and Starlink Vice President Mike Nicolls during remarks at Mobile World Congress (MWC) in Barcelona, Spain.

“With Starship, we’ll be able to deploy the constellation very quickly,” Nicolls stated. “Our goal is to deploy a constellation capable of providing global and contiguous coverage within six months, and that’s roughly 1,200 satellites.”

Nicolls added that once Starship is operational, it will be capable of launching approximately 50 of the larger, more powerful Starlink satellites at a time, as noted in a Bloomberg News report.

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The initial deployment of roughly 1,200 next-generation satellites is intended to establish global and contiguous coverage. After that phase, SpaceX plans to continue expanding the system to reach “truly global coverage, including the polar regions,” Nicolls said.

Currently, all Starlink satellites are launched on SpaceX’s Falcon 9 rocket. The next-generation fleet will rely on Starship, which remains in development following a series of test flights in 2025. SpaceX is targeting its next Starship test flight, featuring an upgraded version of the rocket, as soon as this month.

Starlink is currently the largest satellite network in orbit, with nearly 10,000 satellites deployed. Bloomberg Intelligence estimates the business could generate approximately $9 billion in revenue for SpaceX in 2026.

Nicolls also confirmed that SpaceX is rebranding its direct-to-cell service as Starlink Mobile.

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The service currently operates with 650 satellites capable of connecting directly to smartphones and has approximately 10 million monthly active users. SpaceX expects that figure to exceed 25 million monthly active users by the end of 2026.

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Starlink V2 to bring satellite-to-phone service to Deutsche Telekom in Europe

Starlink stated that the system is designed to deliver 5G speeds directly to compatible smartphones in remote areas.

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Credit: Deutsche Telekom/X

Starlink is partnering with Deutsche Telekom to roll out satellite-to-mobile connectivity across Europe, extending coverage to more than 140 million subscribers across 10 countries.

The service, planned for launch in 2028 in several Telekom markets, including Germany, will use Starlink’s next-generation V2 satellites and Mobile Satellite Service (MSS) spectrum to enable direct-to-device connectivity.

In a post on X, the official Starlink account stated that the agreement will be the first in Europe to deploy its V2 next-generation satellite-to-mobile technology using new MSS spectrum. The company added that the system is designed to deliver 5G speeds directly to compatible smartphones in remote areas.

Abdu Mudesir, Board Member for Product and Technology at Deutsche Telekom, shared his excitement for the partnership in a press release. “We provide our customers with the best mobile network. And we continue to invest heavily in expanding our infrastructure. At the same time, there are regions where expansion is especially complex due to topographical conditions or official constraints,” he said.

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“We want to ensure reliable connectivity for our customers in those areas as well. That is why we are strategically complementing our network with satellite-to-mobile connectivity. For us, it is clear: connectivity creates security and trust. And we deliver. Everywhere.”

Under the partnership, compatible smartphones will automatically switch to Starlink’s satellite network when terrestrial coverage is unavailable, enabling access to data, voice, video, and messaging services.

Telekom reports 5G geographic coverage approaching 90% in Germany, with LTE exceeding 92% and voice coverage reaching up to 99%. Starlink’s satellite layer is intended to extend connectivity beyond those terrestrial limits, particularly in topographically challenging or infrastructure-constrained areas.

Stephanie Bednarek, VP of Starlink Sales, also shared her thoughts on the partnership. “We’re so pleased to bring reliable satellite-to-mobile connectivity to millions of people across 10 countries in partnership with Deutsche Telekom. This agreement will be the first-of-its-kind in Europe to launch Starlink’s V2 next-generation technology that will expand on data, voice and messaging by providing broadband directly to mobile phones,” she said. 

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Starlink’s V2 constellation is designed to expand bandwidth and capacity compared to its predecessor. If implemented as outlined, the 2028 launch would mark one of the first large-scale European deployments of integrated satellite-to-phone connectivity by a major telecom operator.

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