Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron—less than 1/40,000th of the sun. This signature makes it the clearest example of a star within a primordial system that preserves the chemical enrichment of the universe’s first stars. PicII-503 also has an extreme overabundance of carbon, providing the missing link to connect carbon-enhanced stars observed in the Milky Way halo to an origin in ancient dwarf galaxies.
Extremely rare second-generation star discovered inside ancient relic dwarf galaxy
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Social media platforms, such as Facebook, Instagram and X, are accessed daily by millions of people worldwide. In the weeks or months leading up to elections, many political parties use social media platforms as part [...]
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During the National Prayer Breakfast on Feb. 5, 2026, Paula White-Cain, senior adviser to the White House Office of Faith, introduced President Donald Trump as “the greatest champion of faith that we have ever had [...]
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The news media is shaping reproductive narratives and stigma around childlessness, presenting it as a threat to national interests, a deviation from moral or cultural norms, as a risk and, sometimes, as a legitimate life [...]
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Texas busing programs that transported newly arrived immigrants to Democratic-led cities boosted President Donald Trump’s vote share in affected counties during the 2024 election, according to a new study from the USC Price School of [...]
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Indigenous people in the United States are at higher risk of fatal police violence in and around American Indian/Alaska Native (AIAN) reservations, according to the first comprehensive national study on the subject from researchers at [...]
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The growing use of AI-generated scientific and science-related content, especially on social media, raises important concerns: these texts may contain false or highly persuasive information that is difficult for users to detect, potentially shaping public [...]
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The Doomsday Clock—a symbolic device to signal an array of existential threats to the world since 1947—was recently moved to 85 seconds before midnight, the closest it has ever been to midnight. And that was [...]
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During armed conflicts in Latin America, state forces, insurgents, and paramilitaries systematically employed massacres, torture, abductions, and targeted killings to dismantle social structures. The Comisión para el Esclarecimiento de la Verdad, la Convivencia y la [...]
