A precise X-ray thermometer for warm dense matter

Warm dense matter (WDM) measures thousands of degrees in temperature and is under the pressure of thousands of Earth's atmospheres. Found in many places throughout the universe, it is expected to have beneficial applications ...

China's Lunar New Year exodus cools major cities, study shows

During the week-long Chinese New Year, also known as the Lunar New Year, work is suspended, businesses close and nearly 300 million people leave cities to join their families in rural areas for traditional gatherings. The ...

Machine learning tools autonomously classify 1,000 supernovae

Astronomers at Caltech have used a machine learning algorithm to classify 1,000 supernovae completely autonomously. The algorithm was applied to data captured by the Zwicky Transient Facility, or ZTF, a sky survey instrument ...

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