Solar Daily
September 2026
Every article published in September 2026. 9 articles · Back to full archive
Earth Observation
How did a Sahel nation facing advancing desert regrow roughly 5 million hectares of trees on farmland by changing one rule about who owns the seedlings sprouting in a farmer's field?
Flora And Fauna
Every normally sighted human eye has a blind spot about as wide as three small coins held side by side at arm's length, created where the optic nerve exits the retina and leaves no photoreceptors, and the brain quietly paints over the gap using whatever pattern surrounds it
Solar Daily
Olympus Mons on Mars rises 22 kilometres above the surrounding plains
Earth Observation
We tend to think of the Sahara as forever draining life from Africa, but every year roughly 27.7 million tonnes of its dust cross the Atlantic on trade winds and settle on the Amazon, delivering the phosphorus the rainforest's soil cannot otherwise replace
Epidemics
Louis Pasteur was born on 27 December 1822 to a tanner in Dole, was a mediocre student who preferred drawing and fishing, and went on to establish germ theory, invent pasteurisation, and produce vaccines for anthrax and rabies
Earth Observation
How does a small Pacific archipelago keep rats, stoats, and possums off entire islands so that flightless birds thought nearly extinct now breed in the open again?
Aerospace
Astronauts returning from six-month International Space Station stays land measurably taller, sometimes by up to 5 centimetres, because without gravity compressing their vertebrae the intervertebral discs slowly rehydrate and expand, and the effect reverses within a few painful weeks back on Earth
Outer Planets