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Princeton

New image of M87 supermassive black hole generated by the PRIMO algorithm using 2017 EHT data

A sharper look at the M87 black hole

Categories Physics & Mathematics, Space

An example of a gravitational lens found in the DESI Legacy Surveys data. There are four sets of lensed images in DESI-090.9854-35.9683, corresponding to four distinct background galaxies — from the outermost giant red arc to the innermost bright blue arc, arranged in four concentric circles. All of them are gravitationally warped — or lensed — by the orange galaxy at the very center.

Astrophysicists show how to “weigh” galaxy clusters with artificial intelligence

Categories Physics & Mathematics, Space, Technology

Happy child

“What a wonderful day, I’m so happy!” Research shows how children learn emotion labels through parents’ speech

Categories Brain & Behavior

Oxygen starved Pacific Ocean chart

Pacific Ocean’s oxygen-starved ‘OMZ’ is growing, new Princeton research finds

Categories Earth, Energy & Environment

Brain illustration

Direct Evidence of Disrupted Serotonin Release in Depressed Brains

Categories Brain & Behavior

image: Neutron star merger and the gravity waves it produces

New tool allows scientists to peer inside neutron stars

Categories Physics & Mathematics, Space, Technology

Life expectancy drops for Native Americans due to COVID-19

Categories Health, Social Sciences

A team of Princeton researchers has now discovered clear evidence that Megalodon and some of its ancestors were at the very highest rung of the prehistoric food chain – the highest “trophic level.” Indeed, their trophic signature is so high that they must have eaten other predators and predators-of-predators in complicated food web, say the researchers. Harry Maisch of Florida Gulf Coast University, whose hand is holding this Megalodon tooth, gathered many of the samples used in this analysis and is a co-author on the new paper in Science Advances.

What did Megalodon eat? Anything it wanted

Categories Life & Non-humans

Fernanda, the only known living Fernandina giant tortoise (Chelonoidis phantasticus, or “fantastic giant tortoise”), now lives at the Galápagos National Park's Giant Tortoise Breeding Center on Santa Cruz Island. Fernanda, named after her Fernandina Island home, is the first of her species identified in more than a century. Princeton geneticist Stephen Gaughran successfully extracted DNA from a specimen collected from the same island more than a century ago and confirmed that Fernanda and the museum specimen are members of the same species and genetically distinct from all other Galápagos tortoises.

‘Fantastic giant tortoise,’ believed extinct, confirmed alive in the Galápagos

Categories Life & Non-humans

Princeton University researchers reported that unless greenhouse gas emissions are curbed, marine biodiversity could be on track to plummet to levels not seen since the extinction of the dinosaurs. The study authors modeled future marine biodiversity under projected climate scenarios and found that species such as dolphinfish (shown) would be imperiled as warming oceans decrease the ocean’s oxygen supply while increasing marine life’s metabolic demand for it.

Unless climate change is curbed, mass extinction in oceans is likely — Princeton

Categories Earth, Energy & Environment, Life & Non-humans

What do you see when you listen to music?

Categories Brain & Behavior, Social Sciences

Princeton will significantly increase stipends to support graduate students

Categories Social Sciences

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