Saturday, July 26, 2025

France-UK MicroCarb Earth Science Mission Launch | Arianespace Vega C Rocket

France-UK MicroCarb Earth Science Mission Launch | Arianespace Vega C Rocket


On Friday July 25th, 2025, at 11:03 p.m. local time (02:03 a.m. UTC, 04:03 a.m. CEST, on July 26th, 2025), Arianespace successfully launched the MicroCarb satellite for French space agency, CNES. This launch mission, called “VV27” was performed using an Arianespace operated Vega C rocket, launched from Europe's Spaceport in French Guiana.

The auxiliary passenger, MicroCarb, was placed in a Sun-synchronous orbit at an altitude of 650 km and separated 1 hour and 41 minutes after lift-off. It is Europe’s first mission to monitor and map atmospheric carbon dioxide.

The CNES' MicroCarb mission is designed to map sources and sinks of carbon dioxide (CO₂), the most important greenhouse gas, on a global scale. The satellite's dispersive spectrometer instrument will measure atmospheric concentration of CO₂ globally with a high degree of precision. MicroCarb's platform is based out of the lastest CNES Myriade model. Its instrument was built by Airbus Defence and Space, and the integration was realized by Thales Alenia Space UK through a dedicated partnership implemented with the UK Space Agency.

MicroCarb is a joint mission between the UK Space Agency and French Space Agency, Centre National d’Études Spatiales (CNES), serving as the prime contractor. The mission is co-financed by these two agencies, as well as by the European Commission and the French government within the framework of the Investments for the Future Program (PIA), managed by the National Research Agency (ANR). The satellite is designed to precisely map atmospheric carbon dioxide (CO₂), capturing detailed data on emissions from human activities as well as absorption by natural sinks such as oceans and forests.

The satellite is built on the CNES Myriade platform. Thales Alenia Space, a joint venture between Thales (67%) and Leonardo (33%), completed the assembly, integration, and testing of the satellite platform at RAL Space in Harwell, UK, and was responsible for launch preparations. Airbus Defence and Space provided the instrument payload, the infrared spectrometer.

MicroCarb will operate in low Earth orbit, at an altitude of 650 km, and serves as a precursor to the European Union’s Copernicus Anthropogenic Carbon Dioxide Monitoring (CO2M) mission—a constellation of three satellites, with payloads supplied by Thales Alenia Space, which will deliver precise measurements for human-induced atmospheric carbon dioxide and methane. MicroCarb complements the CO2M mission by providing early observations and valuable data, enhancing our capability for CO₂ and methane monitoring to inform climate policy makers. 

Additionally, a special city-scanning mode will enable the mapping of CO₂ distribution within urban areas.

The VV27 launch at a glance:

354th launch by Arianespace, 5th Vega C launch
10% of the satellites launched by Arianespace are Earth observation satellites
147th-150th spacecraft built by Airbus Defence and Space launched by Arianespace (CO3D, 4 satellites)
108th spacecraft built by Thales Alenia Space launched by Arianespace (MicroCarb platform)


Video Credit: Arianespace
Duration: 1 minute, 14 seconds
Release Date: July 26, 2025

#NASA #CNES #ESA #Space #Satellites #Science #Planet #Earth #Arianespace #VegaCRocket #FlightVV27 #MicroCarb #CarbonDioxide #CO2 #ClimateChange #GreenhouseGases #GlobalHeating #EarthScience #EarthObservation #RemoteSensing #France #UK #UKSpaceAgency #InternationalCooperation #KourouSpaceport #FrenchGuiana #Europe #STEM #Education #HD #Video

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