World’s Strangest

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Fairy Wasps are Smaller than Amoebas

People who make toys, dollhouses, or other miniatures know that certain laws of physics apply that make miniaturization difficult. Certain laws of biology apply, too, but the fairy wasp seems to do an end-run around some of those rules. How else could an insect exist that is smaller than many single-celled creatures? Some are revealed [...]

A Cosmic Collision

Today’s Astronomy Picture of the Day shows the aftermath of powerful collision between two asteroids in the belt between Mars and Jupiter. They estimate the speed of the impact at “15,000 kilometers per hour — five times the speed of a rifle bullet — and liberated energy in excess of a nuclear bomb.” What Hubble saw indicates that [...]

Human Embryos With Three Parents

British medical researchers are working on growing human embryos that would have three parents: the father’s sperm, the mother’s egg nucleus, and another mother’s egg cytoplasm. In The Daily Telegraph, Richard Alleyne writes: IVF often fails in older women because there are abnormalities in the outside of their eggs, known as cytoplasm, which surrounds the nucleus. The [...]