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A copper mine in Phalaborwa, South Africa. The African continent is home to vast mineral resources. Mark Schwettmann/Shutterstock

Why African countries must invest more in earth sciences

It seems the production of Earth science knowledge in Africa is simply not progressing, despite the world’s interest in (and exploitation of) the continent’s mineral wealth.
Health care workers and patients in the temporary outside area Steve Biko Academic Hospital created to screen and treat suspected Covid-19 cases in Pretoria. Alet Pretorius/Gallo Images via Getty Images

South African scientists who discovered new COVID-19 variant share what they know

Scientists have observed that 501Y.V2 has quickly become “dominant” among multiple variants that have been circulating in the South African population.
The two giant radio galaxies found with the MeerKAT telescope. In the background is the sky as seen in optical light. Overlaid in red is the radio light from the enormous radio galaxies, as seen by MeerKAT. I. Heywood (Oxford/Rhodes/SARAO)

Discovery of two new giant radio galaxies offers fresh insights into the universe

Based on what we currently know about the density of giant radio galaxies in the sky, the probability of finding two of them in this region is extremely small.
Many researchers from the global North engage research assistants in their geographical field of research. Photo by Axel Fassio/FLICKR

Power dynamics with researchers on the ground needs a reset

Research assistants and associates from the global South are sometimes kept invisible, despite their crucial role in the research cycle.
Migrants try to get network on their phones in Algeciras, Spain. Photo by Ignacio Marin/Anadolu Agency/Getty Images

Insights from Morocco into how smartphones support migration

Smartphones supported migration flows by providing migrants with access to online information before and during travel and when they arrived at their destination country.
Accurate address data is vital for public services, including health monitoring. TippaPatt/Shutterstock

South Africa needs a national database of addresses: how it could be done

Address data are maintained in silos at different government entities. There is limited coordination and adherence to international standards; good practice is lacking around information management.
These fossil trackways resemble the tracks left by flamingos today, but are bigger. Just above the scale bar one can see (more faintly) the ‘tramline traces’ made by the ancient birds’ stomping action. Charles Helm

Fossil tracks reveal which birds once roamed South Africa’s Cape south coast

One avian track, probably made by a large gull or a small goose, was found in sediments that have been dated to about 400,000 years. That makes it the oldest avian track reported from southern Africa.