Normal view

Received — 16 July 2026 ⏭

The Debrief
World’s First Betavoltaic Nuclear Satellite Just Launched to Test a New Era of Space Power 9 July 2026 at 12:50

World’s First Betavoltaic Nuclear Satellite Just Launched to Test a New Era of Space Power

9 July 2026 at 12:50

City Labs BOHR nuclear satellite — (Image Credit: City Labs)

Welcome to this edition of The Intelligence Brief… This week, a new milestone has been reached in space technology, with the launch of the world’s first satellite equipped with a commercial betavoltaic nuclear power system. The satellite was carried to orbit on a a SpaceX Falcon 9 rocket on Tuesday, and in our analysis, we’ll be looking at 1) how the next generation of compact nuclear power systems are now being tested aboard the first City Labs BOHR satellite, 2) how the satellite converts radioactive decay into electricity, and why this technology could eventually help to facilitate long-term space missions to the Moon and other locales, 3) the advantages and hurdles this novel tritium-based power system faces, and 4) what this all could mean for the future of nuclear powered spacecraft used in deep-space missions.

Quote of the Week

“This is a historic step for commercial nuclear power in space.”

— Peter Cabauy, CEO of City Labs

If you enjoy the news and perspectives offered by The Debrief, make sure that you aren’t missing our stories by making us one of your “preferred sources” on Google News. You can simply follow this link to add The Debrief to your list of favorites, and you can read more about Google’s preferred sources in our article here.

The First Nuclear-Powered Satellite is Now in Orbit

Tuesday marked a new chapter in the quest for novel power systems for spacecraft, with the launch of the world’s first satellite equipped with a commercial betavoltaic nuclear power system.

The City Labs Betavoltaic Orbital High-Reliability (BOHR) satellite was carried to space on board a SpaceX Falcon 9 rocket, and in the coming weeks will begin tests to determine whether miniature nuclear batteries can reliably generate electricity in space.

Designed primarily as a proof of concept, the first BOHR satellite will rely on conventional solar panels for its primary power system. However, the first-of-its-kind spacecraft also carries the company’s proprietary “NanoTritium” betavoltaic power source, which, according to the company, uses beta particles emitted during the radioactive decay of tritium that are converted into electricity.

In a statement, Peter Cabauy, CEO of City Labs, called this week’s launch “a historic step for commercial nuclear power in space,” adding that the BOHER satellite “demonstrates that safe, compact, and regulatory-approved nuclear power systems are ready for routine commercial deployment.”

“This capability enables persistent, always-on payload operations that are not constrained by sunlight or battery life,” Cabauy added.

Harnessing the Power of Beta Radiation

The innovative satellite was carried to space earlier this week as part of the recent SpaceX Transporter-17 mission.

“On Tuesday, July 7 at 12:12 a.m. PT, Falcon 9 launched the Transporter-17 mission to low-Earth orbit from Space Launch Complex 4E (SLC-4E) at Vandenberg Space Force Base in California,” read an update that appeared at the SpaceX website announcing the successful launch that carried the City Labs BOHR satellite to space.

“Transporter-17 was a dedicated smallsat rideshare mission,” SpaceX’s update earlier this week added. “There were 81 payloads on this flight, including cubesats, microsats, hosted payloads, and orbital transfer vehicles carrying eight of those payloads to be deployed at a later time.”

Following the satellite’s successful delivery to orbit, its power systems will begin testing the feasibility of beta radiation as a primary driver to produce electricity. In the past, radioisotope thermoelectric generators have been used to propel landmark space missions, such as Voyager 1 and Voyager 2. By contrast, BOHR’s beta radiation system does not rely on heat generated by radioactive decay, which allows for a compact power source that, if all goes according to plan, could one day be deployed in future missions to support spacecraft operating in environments where sunlight is limited. Such applications include the permanently shadowed craters on the Moon and future missions into the outer solar system.

Primarily, City Labs says a tritium-based system is also more beneficial than traditional nuclear fuels like plutonium since it emits relatively low-energy radiation. This, the company says, makes it easier to shield and safer to handle during spacecraft assembly and launch.

Challenges Ahead

The technology does face significant hurdles, however. One involves the fact that tritium is presently still one of the world’s rarest—and most expensive—radioactive materials. Right now, with only around 20 kilograms produced annually throughout the world, the limited quantity and exorbitant costs (current prices reach tens of thousands of dollars per gram) make large-scale adoption anytime in the near term a significant challenge.

There are also regulatory considerations, as noted in a news article released this week by the American Nuclear Society (ANS) following the launch. “In 2019, National Security Presidential Memorandum – 20 (NSPM-20) laid out updates to the process for launching spacecraft containing nuclear systems,” the article states.

“Now the Department of Transportation, which includes the Federal Aviation Administration (FAA), directs the coordination of various agencies to review the safety analysis for missions with nuclear components,” the ANS news brief added, noting that the FAA updated its launch regulations in 2020.

Despite the existence of a few hurdles and other considerations, the mission nonetheless marks an important milestone in the development of next-generation spacecraft power systems. If successful, BOHR could demonstrate that compact betavoltaic power sources are a viable complement to solar energy, opening new possibilities for long-duration missions in some of the darkest and most remote regions of the solar system.

That concludes this week’s installment of The Intelligence Brief. You can read past editions of our newsletter at our website, or if you found this installment online, don’t forget to subscribe and get future email editions from us here. Also, if you have a tip or other information you’d like to send along directly to me, you can email me at micah [@] thedebrief [dot] org, or reach me on X: @MicahHanks.

Here are the top stories we’re covering right now…

The Debrief
U.S. Tests Directed-Energy Weapon as Golden Dome Missile Shield Advances—Here’s What We Know 25 June 2026 at 17:15

U.S. Tests Directed-Energy Weapon as Golden Dome Missile Shield Advances—Here’s What We Know

The Debrief

By: Micah Hanks

25 June 2026 at 17:15

Welcome to this edition of The Intelligence Brief… This week, the Pentagon announced a major milestone in the development of President Trump’s proposed Golden Dome missile defense system after successfully testing a next-generation directed-energy weapon capable of intercepting drones and cruise missiles. In our analysis, we’ll be looking at 1) what the Pentagon revealed about the new directed-energy technology, 2) how the Golden Dome aims to defend against ballistic, cruise, and hypersonic missile threats, 3) why the program has drawn comparisons to Ronald Reagan’s “Star Wars” initiative, and 4) the growing debate over what could become one of the most expensive defense projects in U.S. history.

“With Golden Dome, the War Department will defend our homeland more powerfully than ever before. Golden Dome is real, powerful, and on track.”

– U.S. Secretary of War Pete Hegseth

Golden Dome Advances with Deployment of New Counter-Missile Capability

This week, it was revealed that the Pentagon has made significant strides with the development of its proposed Golden Dome missile defense system, with tests involving a next-generation directed-energy weapon.

Capable of destroying incoming drones and cruise missiles, the weapon has been characterized as a major step toward strengthening America’s future air and missile defense capabilities.

Planned as a multi-layer missile defense system that aims to be operational by the end of President Trump’s term, the Golden Dome aspires to be capable of spotting and destroying a range of missile threats, including ballistic, hypersonic, and cruise missiles.

With the deployment of the new directed-energy weapon this week, the Pentagon has now implemented the first use of next-generation technology that U.S. officials say will lead the way in redefining America’s future air and missile defenses.

The Pentagon’s New Directed-Energy Weapon

In a statement, U.S. Secretary of War Pete Hegseth called the recent test a “first milestone test” for the Golden Dome system.

“Cutting edge directed energy was harnessed and the Dynamic Defense Autonomous Defeat (DDAD) system flawlessly and autonomously cued, targeted, and eliminated a multitude of incoming threats,” Hegseth’s statement read. “This test was executed on schedule — and dynamically defeated every threat.”

Hegesth, who said he was present for the demonstration, “watched our elite warfighters integrate with next-generation technology to stop incoming drones and cruise missiles dead in their tracks,” crediting the advancement to Trump’s One Big Beautiful Bill, a sweeping legislative package put forward in an effort to solidify the permanence of the 2017 Tax Cuts and Jobs Act, along with enacting various other Trump administration priorities.

Hegseth said the legislation provided “the funding to deliver on the ultimate shield to protect America,” and builds on the efforts of former U.S. President Ronald Reagan’s Strategic Defense Initiative (SDI).

Few Technical Details Available

While the Pentagon did not provide technical details about the new system, Hegseth refers to the new weapon as “cutting edge directed energy” technology.

For several years, the Pentagon has been developing directed-energy systems for use in the interception of unmanned aerial vehicles and cruise missiles, with Israel previously reporting operational use of prototype laser capabilities as well.

America’s Golden Dome is partly inspired by Israel’s Iron Dome, although the U.S. counterpart’s design will aim to defend America against longer-range missile attacks—a key element which has encouraged comparisons to Reagan’s SDI.

Unprecedented Expense

The project also carries a large price tag. Presently, the Congressional Budget Office estimates that the initiative could cost as much as $1.2 trillion—an amount nearing the total requested $1.5 trillion defense budget for fiscal year 2027, making it one of the most expensive defense initiatives in U.S. history.

The high cost of the initiative is also impacted by the recent costs associated with the U.S. conflict with Iran, which, by some estimates, could exceed $200 billion. Additionally, a recent controversial memorandum of understanding aiming to halt the conflict agrees to supply $300 billion to Iran, which, as noted by some analysts, is an amount that exceeds the current Iranian defense budget by well over a dozen times.

On Wednesday, the U.S. Senate voted 47-50-1 to block a war powers resolution led by Sen. Tim Kaine that sought to limit President Trump’s authority to conduct military operations against Iran.

Although the measure narrowly advanced in an earlier procedural vote, a surprise upset resulted in a loss of support after Republican Sens. Bill Cassidy and Rand Paul changed their positions. The latest vote came just hours after a heated exchange between Trump and Cassidy, during which Cassidy challenged the president over the duration and objectives of the conflict with Iran.

Many have expressed concerns over the unprecedented U.S. defense spending under the current administration, including U.S. Senator Merkley (D-Oregon), Ranking Member of the U.S. Committee on the Budget, who rebuked a recent addition that asks Congress to spend an additional $88 billion in the form of a supplemental request.

“Padding the pockets of their defense contractor friends does nothing to help Americans get ahead,” Merkley said on Wednesday.