The first to image Earth's magnetosphere using X-ray light
In the predawn hours above French Guiana, a rocket carried two small sensors into orbit that may change how humanity understands its relationship with the Sun. The European Space Agency's SMILE mission, bearing imaging technology built by Teledyne in Chelmsford, England, is the first spacecraft designed to watch Earth's magnetic shield respond to solar wind in real time — not from a distance, but from within the interaction itself. What is at stake is not merely scientific curiosity, but the protection of the satellites, power grids, and communications systems that modern civilization depends upon, and the safety of those who live and work beyond Earth's atmosphere.
- Solar storms and geomagnetic disturbances pose a growing threat to satellites, power infrastructure, and astronauts — yet humanity has never been able to watch Earth's magnetic defenses respond to them in real time.
- SMILE launched at 04:52 BST from French Guiana carrying instruments designed to close that gap, including Teledyne's CCD370 sensors built to detect the faint soft X-ray light produced when solar wind collides with Earth's magnetosphere.
- For the first time, scientists will have an X-ray image of the magnetosphere itself — the boundary where Earth's magnetic field pushes back against the Sun's charged particle stream — rather than inferring its behavior from indirect measurements.
- Four instruments aboard the spacecraft will work in concert to build a comprehensive picture of the Sun-Earth interaction, with Teledyne's sensors providing the critical X-ray layer of that view.
- If the mission succeeds, the result will be sharper space weather forecasting — giving engineers and policymakers more time and more information to protect the systems and people most vulnerable to solar events.
Before dawn on a May morning, a rocket rose from French Guiana carrying two small imaging sensors built by Teledyne Space Imaging in Chelmsford, England. Their destination was orbit aboard ESA's SMILE mission — Solar wind Magnetosphere Ionosphere Link Explorer — a spacecraft designed to observe one of the most consequential interactions in near-Earth space: the constant collision between charged particles streaming from the Sun and the magnetic field that shields our planet.
That collision produces space weather. Solar storms and geomagnetic disturbances can knock out satellites, disrupt power grids, scramble communications, and endanger astronauts. Scientists have studied these events from the ground and from spacecraft positioned upstream in the solar wind — but no mission has ever watched the magnetosphere itself respond to the incoming assault in real time. SMILE is designed to do exactly that.
Teledyne's contribution is the Soft X-ray Imager, built around two CCD370 sensors. When solar wind particles strike Earth's magnetosphere, they produce soft X-ray emissions — light invisible to human eyes but rich with information about what is happening at that boundary. Teledyne's sensors will capture that light, rendering the magnetosphere in X-ray wavelengths for the first time in history.
Company leaders framed the mission in terms of both scientific possibility and practical urgency. A new vantage point on the Sun-Earth relationship has never before existed; now it will. And the knowledge it generates could sharpen space weather forecasting enough to protect the satellites, power systems, and communications networks that civilization depends on — and the people who live and work in orbit above it.
On a May morning in French Guiana, a rocket carrying two small imaging sensors lifted into the sky at 04:52 British Summer Time. Those sensors, built by Teledyne Space Imaging, were bound for orbit aboard the European Space Agency's SMILE mission—a spacecraft designed to watch what happens when the Sun's wind collides with Earth's invisible magnetic shield.
SMILE stands for Solar wind Magnetosphere Ionosphere Link Explorer, and it represents a collaborative effort among space agencies to understand one of the most consequential interactions in near-Earth space: the constant, violent meeting between charged particles streaming from the Sun and the magnetic field that surrounds our planet. This collision produces space weather—solar storms and geomagnetic disturbances that can knock out satellites, disrupt power grids, scramble communications, and endanger astronauts. The mission aims to illuminate how Earth responds to these assaults, with the hope that better understanding will lead to better forecasting and protection.
Teledyne's contribution is specific and crucial. The company supplied two CCD370 imaging sensors that form part of SMILE's Soft X-ray Imager. When solar wind particles slam into Earth's magnetosphere, they produce soft X-ray emissions—light with energies between 0.2 and 2.0 kiloelectron volts. These photons are invisible to human eyes but carry information about what is happening at the boundary where two vast forces meet. Teledyne's sensors will capture that light, allowing scientists to see, for the first time, the magnetosphere itself rendered in X-ray wavelengths. The sensors were designed, built, tested, and qualified at Teledyne's facility in Chelmsford, England.
David Morris, Chief Engineer at Teledyne Space Imaging, framed the achievement in terms of scientific possibility. SMILE, he said, will give researchers a new vantage point on the Sun-Earth relationship—one that has never been available before. The CCD technology makes it possible. Daniel Waller, the company's Vice President and General Manager, emphasized the practical stakes: understanding space weather protects not just the technology civilization depends on—satellites, power systems, communications networks—but also the people who work in space. Teledyne has a long track record on major international missions, and SMILE represents another chapter in that history.
What makes this moment significant is the shift in perspective it enables. Space weather has been studied from the ground and from spacecraft positioned to measure the solar wind before it reaches Earth. But SMILE will observe the interaction itself, watching the magnetosphere respond in real time to the incoming stream. The four science instruments aboard the spacecraft will work together to build a comprehensive picture. Teledyne's sensors will provide one critical piece: the X-ray view of the boundary layer, the place where Earth's magnetic field begins to push back against the Sun's assault. That view has never existed before. Now it will, and it will help scientists and engineers on Earth prepare for the space weather events that will inevitably come.
Notable Quotes
SMILE will provide scientists with a new perspective on the complex interaction between the Sun and Earth, enabling the first X-ray imaging of Earth's magnetosphere.— David Morris, Chief Engineer, Teledyne Space Imaging
Understanding space weather helps protect our planet, the technology we rely on, and our astronauts in space.— Daniel Waller, Vice President and General Manager, Teledyne Space Imaging
The Hearth Conversation Another angle on the story
Why does it matter that we can now see the magnetosphere in X-rays instead of other wavelengths?
Because X-rays are produced at the exact moment of collision—when solar wind particles interact with Earth's magnetic field. Other wavelengths tell you what happened before or after. X-rays show you the event itself, in real time.
And Teledyne built these sensors in England?
Yes, in Chelmsford. The entire pipeline—design through qualification—happened there. It's a specialized facility with the expertise to build detectors sensitive enough to count individual photons from space.
How many instruments are on SMILE total?
Four. Teledyne's sensors are part of the Soft X-ray Imager, but there are other instruments measuring different aspects of the magnetosphere's response.
What happens if space weather forecasting actually improves because of this mission?
Satellite operators get warning. Power companies can take precautions. Communications networks can reroute. Astronauts in orbit can shelter. Right now, we're often caught off guard.
Is this the first time anyone has tried to image the magnetosphere?
Not the first time anyone has tried. But the first time using X-ray light. That's the breakthrough. It's a completely different perspective on the same phenomenon.
How long will SMILE be in orbit?
The source doesn't specify, but these missions typically operate for several years. The data will keep flowing back to Earth as long as the instruments function.