Granules

Martian spherules (also known as hematite spherules, blueberries, & Martian blueberries) are small spherules (roughly spherical pebbles) that are rich in an iron oxide (grey hematite, α-Fe2O3) and are found at Meridiani Planum (a large plain on Mars) in exceedingly large numbers.

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Jules Janssen developed high spatial resolution photography of the solar photosphere in the late 19th century. Images of granules and small sunspots were recorded on 6000 plates through a special telescope but 99 % were destroyed or lost

Reusable granules suck harmful PFAS ‘forever chemicals’ out of water

It is possible to see two sections of sunspots through a magnification of 50x through a filtered telescope at the Sun. There is a darker, cooler central portion with a surrounding lighter ring and 150x shows tiny grains called granules

The Sun's surface is covered in an irregular polygonal pattern known as granulation. Granules have a typical lifetime, birth to death, of around 8-20 minutes