Notícias · Recifes

Why scientists fear we're missing evidence of extraterrestrial life

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden biosignatures, limitations in detection technology, and assumptions about what life should look like can all create dangerous false negatives. The research

Admin Recifes 15/07/2026 1

Were Clovis foragers in Late Pleistocene North America big-game hunters, or just big-game

There are currently 15 well-documented Late Pleistocene localities in North America in which Clovis points are found associated with proboscidean remains (of mammoth, mastodon and gomphothere). Archaeologists routinely assume these localities represent evidence that Clovis people

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Evolutionary origins of 'junk DNA' may provide new clues to cancer

In cancer research, one person's junk is increasingly becoming another person's treasure. Scientists have uncovered new evidence showing how recently evolved "junk DNA" genetic elements can become integrated into ancient cellular pathways that regulate cancer. These findings may

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390 gravitational wave detections reveal hidden population of black holes

Astronomers have released the largest gravitational wave catalog ever, revealing 161 new black hole collisions and pushing the total number of detections to 390. Among the highlights are the clearest gravitational wave signal ever recorded, the most accurate location of a black h

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Two centuries on, experts unlock secrets of Red Sea and Gulf of Aden sailing chart

Experts have unlocked secrets hidden for two hundred years in a beautiful navigational chart made for 18th century seafarers negotiating the Red Sea and Gulf of Aden. The paper scroll is evidence seafaring communities in the region used their own effective system of navigation th

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Researchers recreate a lost Ming Dynasty goldworking technique to make replica royal jewel

Chinese goldsmiths working during the Ming Dynasty were masters of their craft, capable of creating intricate and elaborate jewelry pieces. The evidence is there in the abundance of finds in royal and noble tombs across Hubei province.

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Newfound family ties link Scythian elite burials across the Eurasian steppe

A new ancient DNA study published in Science Advances provides evidence that political power among Scythian elites may have been inherited through family lineages that extended across multiple burial sites. By combining archaeology, anthropology and genetics, the new study offers

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New research reveals the hidden pollution left behind by fireworks

Scientists have uncovered new evidence that fireworks can pollute both the air and water in ways that extend beyond the visible smoke. The findings show that leftover debris, fine particles, and airborne chemicals may affect ecosystems and increase people's exposure to air pollut

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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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Astronomers may have caught an early galaxy in the process of dying

Astronomers have spotted many "red and dead" galaxies in the early universe. These are massive systems that stopped forming stars surprisingly early in cosmic history. Now, they may have found evidence of one in the act of becoming dead: a massive galaxy being stripped of its sta

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Ancient teeth from Siberia rewrite the plague's timeline, dating back to over 5,500 years

Scientists have found the oldest known evidence of the plague, which sparked deadly outbreaks dating back about 5,500 years ago—some 200 years earlier than previously thought.

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Ancient rocks reveal how water reshaped Earth's interior 3.1 billion years ago

Geologists studying some of the planet's oldest volcanic rocks have uncovered new evidence that water was playing a major role in shaping Earth's interior and driving volcanic activity more than 3 billion years ago.

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