All posts tagged: Satellites

how new engines are reshaping spaceflight

how new engines are reshaping spaceflight

As the new Space Age kicks off in force, propulsion technologies are becoming a booming industry. Read more about the different types of propulsion in development. For more than half a century, spaceflight has relied on a familiar formula: powerful chemical rockets generating enough thrust to escape Earth’s gravity and propel spacecraft towards their destinations. From the Apollo Moon missions to today’s commercial launch vehicles, chemical propulsion has remained the backbone of space exploration. Yet a quiet revolution is underway. As the global space sector expands beyond government-led exploration into satellite mega-constellations, commercial lunar missions, space logistics, and ambitions for human journeys to Mars, traditional propulsion systems are increasingly being pushed to their limits. New mission profiles demand greater efficiency, longer operational lifetimes, enhanced manoeuvrability, and lower costs. In response, engineers and researchers are developing a new generation of propulsion technologies that promise to transform how spacecraft travel through space. From electric thrusters and green propellants to nuclear engines and solar sails, these innovations are reshaping the future of spaceflight and redefining what is possible …

Copernicus Sentinel-1D satellite now fully operational

Copernicus Sentinel-1D satellite now fully operational

Launched last November, the Copernicus Sentinel-1D satellite has completed the critical in-orbit commissioning phase and marks a milestone in Europe’s flagship radar mission. The first generation satellite of the Copernicus programme, Sentinel-1A was launched in 2014. The Sentinel-1 mission aimed to provide consistent, high-quality Earth Observation data for the Copernicus Services, helping inform analysis of meteorological events, natural disasters and climate change. The programme consists of two identical satellites orbiting our planet with 180 degrees of separation to optimise coverage. Sentinel-1B was launched in 2016 to pair with Sentinel-1A, but was its mission was ended prematurely by a technical anomaly in 2022. Sentinel-1C was launched in 2024 to fulfil the constellation, with Sentinel-1D launched as an additional satellite in late 2025. Day and night radar coverage of the Earth’s surface The mission delivers critical data for scientists, emergency responders and policymakers through high-resolution synthetic aperture radar imaging. Upon completion, the satellites will have provided twenty years of continuous observations, in all weathers and day and night, offering an unparalleled retrospective in a time of rapid …

Insights from the latest ESOTC report

Insights from the latest ESOTC report

Rebecca Emerton, Senior Scientist at the Copernicus Climate Change Service (C3S), discusses the latest European State of the Climate (ESOTC) report, exploring key findings on rising temperatures, extreme weather, and climate impacts across Europe. Europe’s climate is shifting at a pace that is no longer abstract or distant – it is visible, measurable, and increasingly disruptive. From shrinking snow cover in the Alps to record-breaking ocean temperatures in the Mediterranean, the latest data shows a system under sustained pressure. The ESOTC 2025 report, produced by the European Centre for Medium-Range Weather Forecasts (ECMWF) on behalf of C3S, in collaboration with the World Meteorological Organization (WMO), provides one of the most comprehensive assessments of these changes. Drawing on the work of around 100 scientists, it brings together dozens of datasets spanning atmosphere, oceans, and land. The conclusion is stark: Europe remains the fastest-warming continent, with impacts already affecting ecosystems, economies, and everyday life. European climate change drives loss of snow and ice One of the clearest signals of Europe’s climate change is the rapid decline of …

UK allocates £30M to strengthen satellite communications sector

UK allocates £30M to strengthen satellite communications sector

New funding aims to help domestic companies compete in the rapidly expanding global satellite network market. The UK Government has announced £30m fiscal backing to accelerate the development of satellite communications technology, part of a broader strategy to strengthen the country’s role in the global space economy. The investment, confirmed by Space Minister Liz Lloyd, will support British companies developing critical components for modern satellite networks operating in low Earth orbit (LEO). The funding comes through the UK Space Agency’s Connectivity in Low Earth Orbit (C-LEO) programme and is designed to help technologies move from laboratory testing into operational missions. Government officials say the initiative is intended to position the UK to capture a larger share of a global satellite communications market estimated to be worth about £40bn and expanding by more than 10% annually. Minister Lloyd explained: “Space is now the cornerstone of our modern economy. Satellite constellations have revolutionised how we operate, digitalising industries, optimising logistics and connecting all corners of the globe. “This new funding will support the development of smarter satellites …

SpaceX’s Starlink dodged 300,000 satellite collisions in 2025

SpaceX’s Starlink dodged 300,000 satellite collisions in 2025

A report filed by SpaceX with the US Federal Communications Commission (FCC) in late December reveals some startling information – including that its Starlink satellites had to perform about 300,000 collision-avoidance manoeuvres in 2025. Starlink is a mega-constellation of satellites that beams the internet to the ground. The first Starlink satellites were launched in 2019; they now number about 9400, accounting for 65 per cent of all active satellites in orbit. The FCC requires SpaceX to publish an update every six months on Starlink’s approach to safety, given that two satellites could produce thousands of pieces of debris if they were to collide in space, potentially rendering parts of Earth’s orbit unusable or leading to a cascade of collisions. In its latest report, filed on 31 December, SpaceX said that its Starlink satellites performed about 149,000 collision-avoidance manoeuvres from June to November 2025. Such manoeuvres are performed when two satellites are deemed to be passing too close to each other and have a reasonable risk of collision. The industry standard is to manoeuvre when there …

Satellites could use magnetic fields to avoid collisions

Satellites could use magnetic fields to avoid collisions

It may be possible to keep space exploration missions running longer and avoid spacecraft colliding with each other using a technique that harnesses magnetic fields to move satellites. Currently, most space missions and satellites have a finite lifespan because the objects are moved around in space using propellant fuel, which often runs out. One alternative method called Electromagnetic Formation Flying (EMFF) relies on renewable power sources, such as solar panels, to power electromagnetic coils on board the satellites. These generate a magnetic field which, through interaction with similar magnetic fields generated on any nearby satellite, can theoretically be used to manoeuvre the spacecraft. But researchers have encountered difficulties in using EMFF to move objects in space because of an issue called magnetic coupling. The magnetic field generated by a satellite doesn’t interfere with just one nearby satellite but with all the satellites around it, making it tricky to move more than two nearby satellites in a controlled way. A team of researchers at the University of Kentucky has found a potential solution through the use …

‘Knitted’ satellite launching to monitor Earth’s surface with radar

‘Knitted’ satellite launching to monitor Earth’s surface with radar

A new UK satellite is about to launch, wearing the latest in high‑tech knitwear. Called CarbSAR, it is due to go into orbit on Sunday, where it will deploy a mesh radar antenna produced on a machine more commonly found in a textiles factory. “It’s a very standard, off‑the‑shelf industrial machine used for knitting jumpers. All we’ve done is add some bells and whistles to let it stitch our special yarns,” says Amool Raina, production lead at Oxford Space Systems (OSS) in the UK. The company has partnered with another UK-based firm, Surrey Satellite Technology Limited (SSTL), to mount the antenna onto a small, inexpensive spacecraft capable of capturing high‑resolution images of Earth’s surface. If it performs as expected, a similar novel design will be adopted for a network of surveillance satellites for the British Ministry of Defence (MoD) later this decade. The “wool” in OSS’s knitting process is an ultra‑fine tungsten wire coated in gold. The company’s machine turns out metres of fabric at a time. These mesh sheets can be cut into pizza …