These sea cucumbers seem to have 'zombie' flesh that doesn't die when lopped off

These sea cucumbers seem to have 'zombie' flesh that doesn't die when lopped off

Amputated bits of flesh cut from scarlet sea cucumbers can carry on for years in a strange new form, somewhere between life and death.

To discover new physics, AI may need to 'unlearn' the old one

To discover new physics, AI may need to 'unlearn' the old one

A study in the Journal of Cosmology and Astroparticle Physics explores how a machine-learning strategy known as transfer learning could dramatically reduce the computational cost of searching for new physics beyond the standard cosmological model—while also revealing an unexpected risk: Sometimes AI systems can become too reliant on what they already know.

Look up: Planetary parade featuring Venus, Jupiter and Mercury set to dazzle the sky tonight

Look up: Planetary parade featuring Venus, Jupiter and Mercury set to dazzle the sky tonight

Mercury, Venus and Jupiter will be visible in the night-sky on the evening of June 12. The three planets will align for a celestial show over the Western horizon of the U.S., a worthwhile reason to gaze at the sky above.

Immortal sea cucumber? A fascinating discovery from the ocean floor

Immortal sea cucumber? A fascinating discovery from the ocean floor

Immortal sea cucumber? A fascinating discovery from the ocean floor. The sea cucumber, known in the scientific world as a holothurian,