You often have to make quick judgments about the number of objects you encounter in the world. You might see a group of people walking toward you. It is useful to know whether there are roughly five, ...
3I/ATLAS is surrounded by “a complex jet structure,” new images show, sparking fresh speculation that the Manhattan-sized interstellar object could be an artificial alien craft. The images, captured ...
A family’s set of dishes has passed through five generations of women, but will the teacups, plates and bowls make it to a sixth? By Rukmini Callimachi For this article, Rukmini Callimachi read five ...
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