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SpaceX to launch five South Korean military satellites by 2025

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South Korea is deepening its relationship with SpaceX with a contract to launch at least five military reconnaissance satellites on Falcon 9 rockets by the end of 2025.

Known as the “425 Project,” South Korea intends to operate its own small constellation of five new Earth observation satellites: four synthetic aperture radar (SAR) satellites and one electro-optical infrared (EO/IR) satellite. All five would help ensure the near-continuous observation of sites of interest in North Korea, nominally allowing for new observations to be made at least every two hours. In a boon to South Korea’s aerospace industry, the country intends to domestically design and manufacture most or all aspects of those spacecraft. Developing domestic aerospace solutions has been a significant industrial priority for the country in recent years.

As a result, South Korea’s first stab at a domestic satellite constellation probably won’t produce record-breaking results. Publicly, the goal is to develop satellites with a maximum resolution of 0.3-0.5 meters (1-1.6 ft) per pixel – similar to the publicly established capabilities of most modern mid-sized Earth observation satellites. However, the classified capabilities of the US military and US spy agencies may offer several times that resolving power. South Korea is a close ally of the United States and likely benefits significantly from shared US intelligence. But it’s still no surprise that a country with such a belligerent neighbor would want to own and operate its own fleet of reconnaissance satellites and have the ability to independently produce its own spacecraft.

On top of working on those spacecraft, South Korea has also been developing a fully domestic orbital launch capability. The Korea Aerospace Research Institute (KARI) attempted to launch the first fully completed Korean Satellite Launch Vehicle II (KSLV-2) – also known as Nuri – in October 2021 but fell just short of orbit after its first and second stages performed nominally but its third stage ran into pressurization issues. Nuri is scheduled to return to flight as early as June 15th, 2022. Once operational, the South Korean rocket is designed to launch up to 2.6 tons (~5700 lb) to low Earth orbit (LEO) and 1.5 tons (~3300 lb) to a slightly higher sun-synchronous orbit (SSO).

South Korea’s decision to manifest its 425 Project satellites on SpaceX rockets thus raises some questions about South Korea’s confidence in – or plans to use – its own homegrown launch capabilities. Assuming Nuri more or less meets its performance goals and successfully reaches orbit during its second launch attempt in mid-2022, both of which seem plausible, the rocket would likely be more than capable of beginning operational launches no later than 2023. In fact, South Korea says that its EO/IR satellite – scheduled to launch first – will weigh around 800 kilograms (~1750 lb), making it a near-perfect fit for Nuri’s first operational launch. Such a small payload would give the rocket a large safety margin to account for any unexpected performance losses.

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Instead, South Korea has decided to launch all five spacecraft on SpaceX rockets. SpaceX already has a solid relationship with the country: the company recently launched its Lockheed Martin-built ANASIS-II military communications satellite and is scheduled to launch KARI’s Korean Pathfinder Lunar Orbiter (KPLO) – South Korea’s first mission beyond Earth orbit – no earlier than August 2022.

It’s unclear if SpaceX will launch South Korea’s ‘425’ satellites individually on dedicated Falcon 9s, as rideshare payloads alongside other paying customers, or – in the case of the four SAR satellites – in batches of two or four. KPLO will be a Falcon 9 rideshare payload, making it clear that South Korea is happy to exploit cost-effective rideshare launches – though that calculus may change for military payloads. Regardless, South Korea’s latest contract won’t hurt SpaceX’s commercial manifest, which currently includes around 75 publicly-acknowledged Falcon launches.

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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Tesla teases new market entrance with confusing and cryptic message

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(Credit: Tesla)

Tesla teased its entrance into a new market with a confusing and what appeared to be cryptic message on the social media platform X.

The company has been teasing its entrance into several markets, including Africa, which would be a first, and South America, where it only operates in Chile.

In September, Tesla started creating active job postings for the Colombian market, hinting it would expand its presence in South America and launch in a new country for the first time in two years.

Tesla job postings seem to show next surprise market entry

The jobs were related to various roles, including Associate Sales Manager, Advisors in Sales and Delivery, and Service Technicians. These are all roles that would indicate Tesla is planning to launch a wide-scale effort to sell, manage, and repair vehicles in the market.

Last night, Tesla posted its latest hint, a cryptic video that seems to show the outline of Colombia, teasing its closer than ever to market entry:

This would be the next expansion into a continent where it does not have much of a presence for Tesla. Currently, there are only two Supercharger locations on the entire continent, and they’re both in Chile.

Tesla will obviously need to expand upon this crucial part of the ownership experience to enable a more confident consumer base in South America as a whole. However, it is not impossible, as many other EV charging infrastructures are available, and home charging is always a suitable option for those who have access to it.

Surprisingly, Tesla seems to be more concerned about these middle-market countries as opposed to the larger markets in South America, but that could be by design.

If Tesla were to launch in Brazil initially, it may not be able to handle the uptick in demand, and infrastructure expansion could be more difficult. Brazil may be on its list in the upcoming years, but not as of right now.

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Tesla expands crucial Supercharging feature for easier access

It is a useful tool, especially during hours of congestion. However, it has not been super effective for those who drive non-Tesla EVs, as other OEMs use UI platforms like Google’s Android Auto or Apple’s iOS.

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tesla supercharger
Credit: Tesla

Tesla has expanded a crucial Supercharging feature that helps owners identify stall availability at nearby locations.

Tesla said on Tuesday night that its “Live Availability” feature, which shows EV owners how many stalls are available at a Supercharger station, to Google Maps, a third-party app:

Already offering it in its own vehicles, the Live Availability feature that Teslas have is a helpful feature that helps you choose an appropriate station with plugs that are immediately available.

A number on an icon where the Supercharger is located lets EV drivers know how many stalls are available.

It is a useful tool, especially during hours of congestion. However, it has not been super effective for those who drive non-Tesla EVs, as other OEMs use UI platforms like Google’s Android Auto or Apple’s iOS.

Essentially, when those drivers needed to charge at a Supercharger that enables non-Tesla EVs to plug in, there was a bit more of a gamble. There was no guarantee that a plug would be available, and with no way to see how many are open, it was a risk.

Tesla adding this feature allows people to have a more convenient and easier-to-use experience if they are in a non-Tesla EV. With the already expansive Supercharger Network being available to so many EV owners, there is more congestion than ever.

This new feature makes the entire experience better for all owners, especially as there is more transparency regarding the availability of plugs at Supercharger stalls.

It will be interesting to see if Tesla is able to expand on this new move, as Apple Maps compatibility is an obvious goal of the company’s in the future, we could imagine. In fact, this is one of the first times an Android Auto feature is available to those owners before it became an option for iOS users.

Apple owners tend to get priority with new features within the Tesla App itself.

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Elon Musk’s Boring Co goes extra hard in Nashville with first rock-crushing TBM

The Boring Company’s machine for the project is now in final testing.

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Credit: The Boring Company/X

The Boring Company is gearing up to tackle one of its toughest projects yet, a new tunnel system beneath Nashville’s notoriously tough limestone terrain. Unlike the soft-soil conditions of Las Vegas and Austin, the Music City Loop will require a “hard-rock” boring machine capable of drilling through dense, erosion-resistant bedrock. 

The Boring Company’s machine for the project is now in final testing.

A boring hard-rock tunneling machine

The Boring Company revealed on X that its new hard-rock TBM can generate up to 4 million pounds of grip force and 1.5 million pounds of maximum thrust load. It also features a 15-filter dust removal system designed to keep operations clean and efficient during excavation even in places where hard rock is present.

Previous Boring Co. projects, including its Loop tunnels in Las Vegas, Austin, and Bastrop, were dug primarily through soft soils. Nashville’s geology, however, poses a different challenge. Boring Company CEO and President Steve Davis mentioned this challenge during the project’s announcement in late July.

“It’s a tough place to tunnel, Nashville. If we were optimizing for the easiest places to tunnel, it would not be here. You have extremely hard rock, like way harder than it should be. It’s an engineering problem that’s fairly easy and straightforward to solve,” Davis said.

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Nashville’s limestone terrain

Experts have stated that the city’s subsurface conditions make it one of the more complex tunneling environments in the U.S. The Outer Nashville Basin is composed of cherty Mississippian-age limestone, a strong yet soluble rock that can dissolve over time, creating underground voids and caves, as noted in a report from The Tennessean.

Jakob Walter, the founder and principal engineer of Haushepherd, shared his thoughts on these challenges. “Limestone is generally a stable sedimentary bedrock material with strength parameters that are favorable for tunneling. Limestone is however fairly soluble when compared to other rack materials, and can dissolve over long periods of time when exposed to water. 

“Unexpected encounters with these features while tunneling can result in significant construction delays and potential instability of the excavation. In urban locations, structures at the ground surface should also be constantly monitored with robotic total stations or similar surveying equipment to identify any early signs of movement or distress,” he said.

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