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Billions of years ago, before animals and plants existed, stromatolites helped release some of the earliest oxygen into Earth’s atmosphere. Now, a study published in Current Biology suggests these unusual formations may also preserve clues to another major event in Earth’s history: the emergence of complex life.
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That finding comes from an international research team led by scientists from the Chinese Academy of Sciences (CAS), working with the Dark Energy Spectroscopic Instrument (DESI) project. Using China’s Five hundred meter Aperture Spherical radio Telescope (FAST), the researchers made precise measurements of cosmic neutral atomic hydrogen across the past 4.5 billion years.
Plus: OpenAI is restricting its next model after rating it a “critical” cyber risk.
People with Takotsubo syndrome can suddenly experience chest pain, abnormal electrocardiogram results, and elevated levels of cardiac enzymes – all signs that can closely resemble a heart attack. The key difference is that Takotsubo syndrome does not involve blocked coronary arteries. Because the two conditions can look nearly identical at first, many patients undergo invasive cardiac catheterization before doctors can determine what is causing their symptoms.
Plus: OpenAI is restricting its next model after rating it a “critical” cyber risk.
People with Takotsubo syndrome can suddenly experience chest pain, abnormal electrocardiogram results, and elevated levels of cardiac enzymes – all signs that can closely resemble a heart attack. The key difference is that Takotsubo syndrome does not involve blocked coronary arteries. Because the two conditions can look nearly identical at first, many patients undergo invasive cardiac catheterization before doctors can determine what is causing their symptoms.
Plus: OpenAI is restricting its next model after rating it a “critical” cyber risk.
People with Takotsubo syndrome can suddenly experience chest pain, abnormal electrocardiogram results, and elevated levels of cardiac enzymes – all signs that can closely resemble a heart attack. The key difference is that Takotsubo syndrome does not involve blocked coronary arteries. Because the two conditions can look nearly identical at first, many patients undergo invasive cardiac catheterization before doctors can determine what is causing their symptoms.