Notícias · Recifes

Reanalysis suggests 'Phoebe' is a variable star, not a primordial black hole

A new study debunks a recent claim that astronomers may have detected a lunar-mass primordial black hole. In a reanalysis of observations from the Dark Energy Camera (DECam), researchers found that the star nicknamed "Phoebe" was simply doing something ordinary that many stars do

Admin Recifes 15/07/2026 2

Camouflaging snails change color in the rain

How does a stripy tree snail hide from hungry birds? The Hypselostyla camelopardalis from the Philippines and Reinia variegata from Japan have both evolved a form of dynamic camouflage to survive. Their light-colored patterns vanish in the rain, and the shell turns dark brown, si

Admin Recifes 15/07/2026 2

Voyage to the end of the world: floating lab to explore life in Arctic adrift in ice

An eight-month expedition will set off soon from Norway on a mission to find new species before the climate crisis and pollution changes the northern ocean for everSix scientists and six crew will travel next month to Kirkenes, a remote Arctic town in Norway near the Russian bord

Admin Recifes 15/07/2026 2

Quantum semiconductor design could expand search for dark matter

Dark matter accounts for 85% of the matter in the universe, but scientists still do not know what it is made of. A study, published in Physical Review Letters, by Rice University researchers proposes a detector design that could help search for axions, hypothetical particles that

Admin Recifes 15/07/2026 1

A strange LIGO signal could reveal the missing link behind dark matter

An unusual gravitational wave signal has renewed hopes that primordial black holes, long considered purely theoretical, may finally be within reach of discovery. If confirmed, they could solve one of astronomy's greatest mysteries by explaining the nature of dark matter.

Admin Recifes 15/07/2026 2

The founding father of American literature, Charles Brockden Brown saw his nation's dark s

Murder, suicide, spontaneous combustion, sleepwalking, ventriloquism: These are some of the sensational events in the novels of Charles Brockden Brown (1771–1810). As the United States' first professional author, Brown is the Founding Father of the nation's literature. He is, acc

Admin Recifes 15/07/2026 2

NASA celebrates America's 250th birthday with incredible views of space

NASA is marking the United States' 250th birthday with four striking red, white, and blue images of deep space from the Chandra X-ray Observatory. The collection features an exploded star, a stellar nursery, a galaxy where stars are rapidly forming, and a galaxy cluster that prov

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Common nanostructures may explain shared photoproperties in two widespread dark materials

A newly developed framework for understanding the photoproperties of both natural organic matter and eumelanin, a natural pigment responsible for dark colors in organisms, may inspire advanced sustainable technologies, scientists say.

Admin Recifes 15/07/2026 2

British swallowtail split from European cousins much earlier than thought, study finds

Finding that Norfolk butterfly has been distinct subspecies for 200,000 years could transform conservation approachThe endangered swallowtail butterfly Papilio machaon britannicus, which is only regularly found breeding in Britain on the Norfolk Broads, has been a distinct subspe

Admin Recifes 15/07/2026 2

The Guardian view on gene-edited humans: darker uses must be acknowledged alongside medica

Polling shows that the public supports this new technology, but the conversation must move beyond simple questions of safetyEver since Crispr-Cas9 gene-editing technology emerged in the early 2010s, ethical questions around genetically altered humans, so-called designer babies, h

Admin Recifes 15/07/2026 1

This alien planet never has sunrise or sunset. It may support life

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could circulate in a stable, continuous loop, helping moderate temperatures in certain

Admin Recifes 15/07/2026 2

Dark energy flips its sign, but the Hubble tension refuses to budge

For nearly a century, astronomers have known that the universe is expanding. In the late 1990s, two independent teams, the Supernova Cosmology Project, led by Saul Perlmutter, and the High-Z Supernova Search Team, led by Brian Schmidt and Adam Riess, discovered something strange:

Admin Recifes 15/07/2026 2

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