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Consistency check casts doubt on evolving dark energy

Consistency check casts doubt on evolving dark energy
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Cosmologists have long struggled to determine whether the universe's accelerating expansion is being driven by a simple cosmological constant, or whether dark energy's influence is evolving over time. In a new analysis published in Physical Review D, Samsuzzaman Afroz and Suvodip Mukherjee at the Tata Institute of Fundamental Research, Mumbai, have identified a subtle impact on the inference of th

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Blue and fin whale sightings on the rise in the Southeast Atlantic
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Blue and fin whale sightings on the rise in the Southeast Atlantic

More than 40 years after the end of commercial whaling, new research reveals a recent increase in sightings of the world's two largest whale species in the southeastern Atlantic. The findings, published in the African Journal of Marine Science, compile more than 60 years of confirmed sightings and strandings from Namibia and South Africa's west coast. Although overall numbers remain low, sightings of both species have increased markedly in recent years—with 95% of observations recorded since 201

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