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Challenge yourself with these optical brainteasers.

Former NASA astronaut Drew Feustel now advises the astronaut training program for the private space company Vast, which aims to put its Haven-1 station into orbit in May.

4 mins read//

Most healthy adults have bowel movements three times a day to three times a week. Constipation refers to bowel movements that occur less often than expected or when the stool is hard, dry, and difficult to pass. Though constipation may be a common problem, it is still uncomfortable and stressful when it strikes.

As modern leaders, we should be both proficient in using AI tools and also cognizant of when not to use them.

Read good news about climate change with 9 stories that show reducing carbon emissions, improving biodiversity, and protecting the planet Earth.

Are Starlink satellites a grand innovation or an astronomical menace?

Two types of migraine can cause visual disturbances with or without the classic headache.

A new study examines the nutritional value of popular breakfast cereals — maybe the one you're eating right now.

Plus: which supplements actually work, and is high-fiber all it’s cracked up to be?

A tango might be more than a ballroom dance when it comes to the aging brain.

Sometimes doctors remove cataracts from both eyes on the same day. Is this something you should consider?