4+ hour, 21+ min ago   (878+ words) What happens to Webb’s mysterious little red dots as the universe ages? The Saguaro galaxy’s red nucleus offers a way to explore their hidden surroundings. When the James Webb Space Telescope began finding tiny, intensely red sources in the early…...

22+ hour, 22+ min ago   (504+ words) A 70,000–100,000-year-old site in China’s Lower Yangtze region yielded 3,596 stone artifacts. Their size and manufacture point to a change in toolmaking, but not to a known species or a settled explanation. Stone tools in China’s Lower Yangtze region point to…...

23+ hour, 51+ min ago   (556+ words) A chemical record preserved in their teeth suggests that most of the men in Phaleron’s shackled mass graves grew up in Attica. The finding shifts the debate from foreign invaders to violence within the community itself. At first glance, the…...

1+ day, 36+ min ago   (378+ words) The small moons inside Neptune’s rings may be the surviving debris of a much larger moon system destroyed when Triton was captured billions of years ago. Neptune’s smallest moons look like minor members of the solar system. They are difficult…...

1+ day, 1+ hour ago   (282+ words) Dark photons are one proposed explanation for dark matter. A new calculation suggests that the early universe’s plasma may have stopped them from depositing heat as efficiently as earlier models predicted. The post Early-Universe Plasma May Have Kept Dark Photons…...

1+ day, 2+ hour ago   (603+ words) The enormous Cygnus Bubble is usually linked to a busy star-forming region. A new study argues that the microquasar Cygnus X-3 may be the more natural source of its highest-energy gamma rays. Cygnus X-3 is a microquasar, a binary system containing a…...

1+ day, 2+ hour ago   (663+ words) The cosmic microwave background is the oldest light we can observe. Here is where it came from, what its tiny patterns reveal, and why it still matters. About 380,000 years after the Big Bang, the expanding universe had cooled enough for…...

1+ day, 3+ hour ago   (421+ words) Electrical surveys at a Neolithic cemetery in Brittany have found strong signs of buried stone clusters inside two huge barrows. Only excavation can show whether the mounds conceal rare human-shaped monuments. TRED30 and TRED31 are elongated earthen barrows between 50 and 80 metres long....

1+ day, 4+ hour ago   (476+ words) A sub-threshold Einstein Probe X-ray flash was found after ZTF spotted supernova SN 2025wkm. Researchers link the signal to shock breakout and a possible magnetar-powered engine. EP250827b was a soft X-ray flash that lasted more than 1,000 seconds. Spectral fits put its peak…...

1+ day, 23+ hour ago   (578+ words) What can an 8,300-year-old Jomon genome reveal about prehistoric Japan? New high-coverage DNA sharpens the story of migration, isolation and cultural change. An 8,300-year-old woman from prehistoric Japan has become one of the clearest genetic windows yet into the Jōmon…...