ESA title

The mission

Carrying a suite of cutting-edge instruments, Copernicus Sentinel-3 measures systematically Earth’s oceans, land, ice and atmosphere to monitor and understand large-scale global dynamics. It provides essential information in near-real time for ocean and weather forecasting.

The launch

Date: Sentinel-3A on 16 February 2016
          Sentinel-3B on 25 April 2018
          Sentinel-3C in 2026
Site: Sentinel-3A and -B from Plesetsk Cosmodrome, Russia
         Sentinel-3C from Europe's Spaceport, French Guiana
Launcher: Sentinel-3A and -B on Rockot
                  Sentinel-3C on Vega-C

Sentinel-3
Sea state
Applications

Satellites reveal the power of ocean swell

08/10/2025 5569 views 57 likes
Read
Iberian fires August 2025
Applications

Iberian wildfires seen from space

20/08/2025 11244 views 64 likes
Read
Trends in Arctic sea ice thickness from 2011–2025
Applications

Sea ice lows high on the agenda

24/06/2025 1857 views 22 likes
Read
Global sea surface temperature
Applications

Sea surface warming faster than expected

17/04/2025 7039 views 59 likes
Read
Protecting areas of the Atlantic Ocean from human activity
Applications

Protecting ocean biodiversity with satellite data

15/04/2025 2095 views 31 likes
Read
Adriatic Bloom
Applications

How marine heatwaves impact phytoplankton and ocean health

31/10/2024 2116 views 33 likes
Read
Arctic diatoms
Applications

Will climate change turn the Arctic green?

18/06/2024 3430 views 10 likes
Read
Smoke from fires in Canada
Applications

Canada’s wildfire season begins

16/05/2024 2757 views 14 likes
Read
Full Earth disc from the Meteosat Third Generation Imager
Applications

10 ways Earth is interconnected

22/04/2024 4738 views 17 likes
Read
Sentinel-5P detected methane plumes
Applications

Trio of Sentinel satellites map methane super-emitters

20/09/2023 39142 views 152 likes
Read
Worldwide fires from ESA’s World Fire Atlas
Applications

Counting wildfires across the globe

03/08/2023 40487 views 105 likes
Read
Heatwave across Europe
Applications

Europe braces for sweltering July

13/07/2023 109461 views 213 likes
Read
Sea-surface temperature January to mid-May 2023
Applications

Our oceans are in hot water

17/05/2023 10832 views 107 likes
Read
France and Spain land-surface temperature
Applications

Feeling the heat from space

20/07/2022 13953 views 139 likes
Read
Greenland ice sheet melt
Applications

Historic Greenland ice sheet rainfall unravelled

25/05/2022 8257 views 113 likes
Read
A-68A’s position on 17 December
Applications

Mega iceberg released 152 billion tonnes of freshwater

20/01/2022 11683 views 82 likes
Read
Baltic Sea from Copernicus Sentinel-3
Applications

New satellite data techniques reveal coastal sea-level rise

07/07/2021 16093 views 112 likes
Read
Ocean acidification
Applications

Satellites highlight a 30-year rise in ocean acidification

21/04/2021 8494 views 92 likes
Read
Mount Etna smoke plumes
Applications

Satellites monitor Mount Etna’s unpredictable behaviour

08/04/2021 18385 views 102 likes
Read
A-68A and A-68G
Applications

Is this the end of the A-68A iceberg?

03/02/2021 20579 views 102 likes
Read
Wetlands
Applications

Earth observation vital in monitoring wetland waters

02/02/2021 6464 views 89 likes
Read
Area burned by fire in August 2019
Applications

New long-term dataset to analyse global fire trends

26/01/2021 7589 views 70 likes
Read
A-68A iceberg loses chunk of ice
Applications

Giant A-68A iceberg loses chunk of ice

18/12/2020 11587 views 127 likes
Read
Start of Vendée Globe 2020
Applications

Copernicus satellites keep eyes on icebergs for Vendée Globe

02/12/2020 5207 views 51 likes
Read
Between fire and hurricane
Applications

US West Coast on fire

18/09/2020 8474 views 84 likes
Read
Industrial emissions of carbon dioxide fuel our warming climate
Applications

Providing the facts to help Europe achieve 55%

16/09/2020 3807 views 48 likes
Read
Captured on 11 August by the Copernicus Sentinel-3 mission, this image shows Eureka in the Canadian territory of Nunavut.
Applications

Monitoring the Arctic heatwave

27/08/2020 7177 views 115 likes
Read
Working on Copernicus Sentinel-6 Michael Freilich
Applications

Building satellites amid COVID-19

04/05/2020 4447 views 53 likes
Read
Burned area near Chernobyl site
Applications

Mapping Chernobyl fires from space

16/04/2020 19797 views 90 likes
Read
Water management key for sustainable agriculture
Applications

Satellites and machine learning for water management

09/04/2020 10715 views 87 likes
Read
Smoke over New South Wales, Australia, from Copernicus Sentinel-3
Applications

Australia: like a furnace

09/01/2020 14663 views 140 likes
Read
Fires around the world
Applications

Is Earth on fire?

25/10/2019 24098 views 110 likes
Read
Sea roughness key to carbon flux
Applications

Can oceans turn the tide on the climate crisis?

08/10/2019 11804 views 217 likes
Read
Wildfires in Brazil
Applications

Fires ravage the Amazon

27/08/2019 17069 views 146 likes
Read
Sargassum in Guadeloupe
Applications

Washed up: Sargassum blankets beaches

30/07/2019 12804 views 126 likes
Read
Ice streams named
Applications

Antarctic glaciers named after satellites

07/06/2019 5267 views 60 likes
Read
Greenland snow grain and albedo
Applications

Snow grain size – it matters

29/05/2019 7113 views 89 likes
Read
Floods imaged by Copernicus Sentinel-1
Applications

Copernicus Sentinel-1 maps floods in wake of Idai

20/03/2019 14464 views 111 likes
Read
Cloud-free Europe
Applications

New observations for the new economy

08/03/2019 10708 views 89 likes
Read
Losing ice
Applications

Greenland ice loss quickening

06/12/2018 8337 views 131 likes
Read
Regional sea-level trends
Applications

Spotlight on sea-level rise

25/09/2018 16251 views 97 likes
Read
Lake Maggiore and Baveno
Applications

Copernicus 20 years on

21/06/2018 6076 views 93 likes
Read
Tandem in images
Applications

Sentinel-3 flies tandem

19/06/2018 9098 views 109 likes
Read
Antarctic sunset from Sentinel-3B
Applications

Copernicus Sentinel-3B delivers first images

09/05/2018 23088 views 154 likes
Read
Applications

Seventh Sentinel satellite launched for Copernicus

25/04/2018 12233 views 86 likes
Read
Enabling & Support

ESA teams ready for space

24/04/2018 4594 views 61 likes
Read
Into the tower
Applications

Sentinel-3B on launch pad

23/04/2018 8885 views 77 likes
Read
Fuelling Sentinel-3B
Applications

Sentinel-3B fully tanked

13/04/2018 2982 views 37 likes
Read
Unveiling Sentinel-3B
Applications

Sentinel-3B launch preparations in full swing

23/03/2018 7522 views 65 likes
Read
Applications

Safeguarding our most precious resource: water

22/03/2018 7529 views 101 likes
Read
1 2 >