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Astronomers Cannot Agree On How Fast the Universe is Expanding

2 weeks 6 days ago
Two fundamentally different methods for measuring the universe's expansion rate continue to produce incompatible results -- with direct observations of receding galaxies yielding approximately 73 kilometers per second per megaparsec and cosmic microwave background radiation analysis producing closer to 67 km/s/mpc. The discrepancy, known as the Hubble tension, has strengthened annually for the past decadem, according to Duke University astronomer Dan Scolnic. The persistent disagreement prevents calculation of the universe's precise age or size. The Lambda-CDM model, which holds that dark energy and dark matter comprise 95% of the universe while visible matter constitutes just 5%, assumes dark energy's nature has remained constant since the Big Bang. Some theorists propose dark energy's potency changes over time, while others suggest the Milky Way sits within a comparatively empty region of space. A June study using gravitational lensing of quasar light, bypassing traditional distance measurements, matched the higher value. New telescopes including the Vera Rubin Observatory and Nancy Grace Roman Space Telescope may provide additional data. Past improvements in measurement precision have only reinforced rather than resolved the tension.

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Sci-Fi Adaptation War of the Worlds Scores 0% on Rotten Tomatoes

2 weeks 6 days ago
A new War of the Worlds adaptation starring Ice Cube has achieved a 0% critical rating on Rotten Tomatoes after arriving on Prime Video in late July. The science fiction film, produced by Universal Pictures during the 2020 pandemic using actors filming separately through video calls, features alien tripods emerging from meteors to attack Earth. The movie sat unreleased for approximately five years before streaming debut. Critics cite poor visual effects that "wouldn't pass muster on a whimsical Snickers ad" and performances where actors appear to be "performing in a Zoom-style vacuum." The film was shot using screenlife format with most action unfolding on computer screens.

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OpenAI’s new model can't believe that Trump is back in office

2 weeks 6 days ago
gpt-oss-20b can't seem to decide who won the election, but tried to convince us that it was Biden

If you're still struggling to come to terms with the results of the 2024 US presidential election, you're not alone. OpenAI's new open-weight language model is also a bit confused.…

Tobias Mann

Google Says AI Search Features Haven't Hurt Web Traffic Despite Industry Reports

2 weeks 6 days ago
Google says total organic click volume from its search engine to websites has remained ""relatively stable year-over-year" despite the introduction of AI Overviews, contradicting third-party reports of dramatic traffic declines. The company reports average click quality has increased, with users less likely to immediately return to search results after clicking through to websites. Google attributes stable traffic patterns to users conducting more searches and asking longer, more complex questions since AI features launched, while AI Overviews display more links per page than traditional results.

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