Success stories include the Mauritius kestrel and the Lord Howe woodhen, which had just 23 individuals in the 1970s but today numbers more than 1,600 birds.

Seen in the Grand Canyon and other locations, the pressing mystery of the Great Unconformity might have a solution.

When astronomers looked at photos of the early universe taken by the James Webb Space Telescope, they found something odd: an overabundance of bright galaxies about 400 to 500 million years after the Big Bang. But these galaxies should have been far less common so soon after the Big Bang. Researchers may have figured this out: Powerful ultraviolet (Lyman-alpha) radiation produced by dense clusters of young stars acted like a leaf blower, driving light-blocking gas and dust out of the galaxy and thereby making the galaxies appear brighter.

Some benefits seem to go beyond weight loss, but for healthy people, the case for taking them isn’t there yet.

I'm going to brace myself and probably scream a little, but perhaps the discomfort will be worth it.