Astronomy

A 13-million-year-old leg bone from an enormous flightless bird carries crocodilian tooth marks, showing South America was once a predator-eat-predator world

A 13-million-year-old leg bone from an enormous flightless bird carries crocodilian tooth marks, showing South America was once a predator-eat-predator world

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A SpaceX Falcon 9 rocket launched two of SES's O3b mPOWER communications satellites toward medium-Earth orbit today (July 22), then aced its landing on a ship at sea.

Ozzy Osbourne, lead singer of Black Sabbath, has died at age 76. He said he had been previously diagnosed with a form of Parkinson’s disease linked to the gene PRKN

Meteor-watchers will be busy this month and next. Not only are the Southern Delta Aquariids peaking soon, but they get a boost from additional minor showers.

The post Thumbs Up for the Delta Aquariid Meteor Shower appeared first on Sky & Telescope.

Astronomers have discovered a 200-light-year-wide Giant Molecular Cloud dubbed the Midpoint cloud that seems to be feeding star-building material to the heart of the Milky Way.

Reducing air pollution is critical for improving public health, but it has brought big climate trade-offs

Reducing air pollution is critical for improving public health, but it has brought big climate trade-offs

The thin crescent moon and Jupiter will be visible to the naked eye for early risers on July 23.

'A malfunctioning program who wants to live. Why is that?'

Two AI models have achieved gold medal standard for the first time in a prestigious competition for young mathematicians – and their developers claim these AIs could soon crack tough scientific problems

Two AI models have achieved gold medal standard for the first time in a prestigious competition for young mathematicians – and their developers claim these AIs could soon crack tough scientific problems

Miguel Claro took one last look at Comet C/2023 A3 Tsuchinshan-Atlas as it bid farewell to Earth for the next 80,000 years.

Solar expert Dr. Ryan French explains how to safely photograph the sun and all of its wondrous features!

Leaf-toed geckos were thought to be locally extinct on Rabida Island, but the diminutive reptiles have re-emerged after a campaign to eliminate invasive rats

Leaf-toed geckos were thought to be locally extinct on Rabida Island, but the diminutive reptiles have re-emerged after a campaign to eliminate invasive rats

Losing a tooth as an adult is par for the course for many of us. The only option to replace them? Artificial substitutes. But an era of regrowing living teeth may now be almost upon us

Losing a tooth as an adult is par for the course for many of us. The only option to replace them? Artificial substitutes. But an era of regrowing living teeth may now be almost upon us