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Watching a solar eclipse is always fascinating. During the phase when the moon completely obstructs the sun, daylight gives way to a deep twilight sky. (Shutterstock)

On April 8, 2024, parts of Ontario, Québec, the Maritimes and Newfoundland will see a total eclipse of the sun. Here’s how to get ready for it.

Some parts of North America will witness a total solar eclipse in April 2024. This may seem far away, but you should think about preparing for this rare and fascinating phenomenon.
It’s disconcerting to think the way two people perceive the world might be totally different. Mads Perch/Stone via Getty Images

Do you see red like I see red?

Neuroscientists tackling the age-old question of whether perceptions of color hold from one person to the next are coming up with some interesting answers.
A visually impaired young girl reads a Braille notice. Retinal dysfunction results in one in 3 500 people suffering night blindness, loss of peripheral vision and later complete blindness. Reuters/Amr Abdallah Dalsh

Explainer: South Africa’s challenges in the search for genes causing eye disease

Today is the start of World Retinal Week. Establishing retinal degenerative disorders in Africa is challenged by the unique genetic diversity of Africans.
The retina captures light signals and sends them to the brain. from www.shutterstock.com

Look, your eyes are wired backwards: here’s why

The reverse-wiring of the eyeball has long been a mystery, but new research shows a remarkable structural purpose: increasing and sharpening our colour vision.

‘Blind’ cells sense light

Melanopsin pigment in the eye could be more light sensitive than the pigment that allows for night vision, rhodopsin. A two-year…

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