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Articles sur Earth observation

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Illustration of a view of Africa from space. Getty Images

Côte d’Ivoire is launching its first satellite for Earth observation – and it’s locally made

Côte d’Ivoire’s nanosatellite is the first step towards applications that monitor environmental harm and illegal activities and assist in planning for development.
NASA’s Landsat satellites have been monitoring changes on Earth’s landscape for 50 years. NASA illustration

Satellites over the Amazon capture the choking of the ‘house of God’ by the Belo Monte Dam – they can help find solutions, too

When Indigenous peoples lose their river flow to dams, satellite programs like Landsat – which is celebrating its 50th anniversary – can help them fight for their resources.
Rapid loss of species like these Spix’s macaws, considered extinct in the wild, may represent the sixth mass extinction in Earth’s history. PATRICK PLEUL/DPA/AFP via Getty Images

Protecting half of the planet is the best way to fight climate change and biodiversity loss – we’ve mapped the key places to do it

A new plan targets areas around the world that can store carbon and protect large numbers of species. It calls for preserving these lands, working with Indigenous peoples and connecting wild areas.
A section of Beijing Daxing International Airport from the first 3D images released by China National Space Administration using data from the recently launched Gaofen-7 Earth observation satellite, which can resolve objects less than a metre wide. China National Space Administration/Xinhua

As Digital Earth gains momentum, China is setting the pace

China has embraced the concept of Digital Earth – the use of data from satellites to create a visual map of what’s happening at every point on the planet – and is now a key player in making it happen.
Sunset at Australia’s Cape Grim observatory, one of the key global background monitoring sites for CFC-11. Paul Krummel/CSIRO

Eastern China pinpointed as source of rogue ozone-depleting emissions

For several years, emissions of CFCs have been rising, in apparent defiance of a global ban in place since 2010. A new global detective effort has traced the source to two eastern Chinese provinces.
The vast amounts of data from more than 650 Earth observation satellites are transforming how we see and shape urban landscapes. Pitney Bowes Australia courtesy PSMA

Digital Earth: the paradigm now shaping our world’s data cities

The huge volume and high quality of data streaming down from Earth observation satellites are transforming how we see and shape our cities.
The northeast edge of the Venable Ice Shelf, near Antarctica’s Allison Peninsula. NASA/John Sonntag

Short-term changes in Antarctica’s ice shelves are key to predicting their long-term fate

Last summer one of Antarctica’s floating ice shelves calved an iceberg the size of Delaware – but scientists say other less dramatic changes reveal more about how and why Antarctica is changing.
Three new reports examine Australia’s existing space capabilities, set them in the light of international developments, and identify growth areas and models for Australia to pursue. 136319147@N08/flickr

Three new reports add clarity to Australia’s space sector, a ‘crowded and valuable high ground’

Space is becoming cheaper, more attractive to investors and increasingly important in our data-rich economy. It’s time Australia mapped a path forward.
Carbon dioxide flux over China, measured by NASA’s Orbiting Carbon Observatory-2 satellite. NASA

Satellites are giving us a commanding view of Earth’s carbon cycle

New data from a NASA satellite show in unprecedented detail the flow of carbon dioxide into the atmosphere. Future satellites should even be able to detect the signatures of individual power stations.

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