A visual challenge, the 'Spot the 409' test, requires participants to find a single '409' amidst numerous '406's within seven seconds. This exercise highlights how visual crowding can make subtle ...
HELSINKI — China has selected near-Earth object 2019 VL5 for a combined asteroid deflection and observation test to launch 2025. The mission will use a Long March 3B rocket and carry both an impactor ...
A challenging optical illusion is baffling social media users, tasking them to find a hidden child within a green tree and bush scene. The boy is expertly camouflaged by leaves and shadows, making him ...
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