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Astronomy

Cosmic threesomes make some galaxies run away

Extremely rare, free-floating galaxies called compact ellipticals may have been ejected from their home clusters after a massive intergalactic meet-up.

Earth

Massive magma pool found deep below Yellowstone

Earthquake waves reveal massive magma reservoir deep inside the Yellowstone supervolcano.

Genetics

Genetic editing can delete deleterious mitochondria

A new technique slates mutant mitochondria for destruction.

Neuroscience

Tinnitus causes widespread trouble

People don’t just hear the phantom ringing of tinnitus in the part of the brain that processes sounds.

Neuroscience

Catching Zs may snag memories, too

Flies genetically destined to be forgetful could boost their memory with sleep.

Genetics

Depression leaves lasting mark on DNA

Stress affects cells at the molecular level.

Animals

Bees may like neonicotinoids, but some may be harmed

Two high-profile tests raise worries that bees can’t avoid neonicotinoid pesticides and that wild species are at special risk.

Particle Physics

Particle hunting in space, life in the urban jungle and more reader feedback

Readers discuss wheat's journey to England, share stories about urban wildlife and more.

Space

Driving Curiosity to discovery

Discovery is driven by curiosity, on Mars and closer to home.

Environment

Stinkin’ rich

Researchers work out the hidden value of sewage sludge.

Life

Bolder snails grow stronger shells

Bold snails have tougher shells than shy snails. Understanding what drives snails to develop such differences is a bit of a challenge.

Animals

Finland’s brown bears on surprise fast track to recover diversity

Brown bears in southern Finland show surprisingly fast improvements in genetic diversity and connections with other bears.