🌌 Universe’s Expansion May Be Slowing Down, Not Speeding Up
If verified, this finding could overturn decades of cosmological theory and redefine our understanding of dark energy — potentially marking one of the most transformative moments in modern astrophysics.
A new study in the Monthly Notices of the Royal Astronomical Society challenges the long-held belief that the universe’s expansion is accelerating. Researchers from Yonsei University discovered that the brightness of type Ia supernovae depends on the age of their progenitor stars, and when this bias is corrected, the apparent acceleration disappears. The results align with data from baryonic acoustic oscillations and the cosmic microwave background, suggesting that dark energy could be weakening over time.
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🧠 From Web Developer to Database Engineer: A Decade of Growth
An inspiring and relatable account that shows how steady learning and community involvement can propel developers from web apps to the core layers of database systems engineering.
The author reflects on a ten-year journey from building front-end web applications to contributing to PostgreSQL internals at EnterpriseDB. Through experimenting with small database projects, mastering data structures and algorithms, and engaging with the open-source community, he evolved into a distributed systems engineer. The story highlights how persistence and curiosity can turn practical experience into deep technical expertise.
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💻 Nvidia’s China Shipments Halt Highlight AI Trade Tensions
Beyond the headline confusion, the piece sheds light on the growing geopolitical friction in the semiconductor sector and how export restrictions continue to influence Nvidia’s financial and strategic direction.
Despite its misleading title, the article focuses on Nvidia’s 9% stock decline following CEO Jensen Huang’s statements about suspending chip exports to China. Huang confirmed that Nvidia will not export H20 or Blackwell chips due to regulatory limits and lower market demand, while also dismissing claims that he predicted China would lead the AI race — instead noting the country’s strong AI research capabilities.
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