astrophysics

NASA’s Quest to Touch the Sun

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The original version of this story appeared in Quanta Magazine. Our sun is the best-observed star in the entire universe. We see its light every day. For centuries, scientists have tracked the dark spots dappling its radiant face, while in recent decades, telescopes in space and on Earth have scrutinized sunbeams in wavelengths spanning the … Read more

The Mysterious ‘Dark’ Energy That Permeates the Universe Is Slowly Eroding

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Beyond DESI, a slew of new instruments are coming online in the coming years, including the 8.4-meter Vera Rubin Observatory in Chile, NASA’s Nancy Grace Roman Space Telescope, and the European Space Agency’s Euclid mission. “Our data in cosmology has made enormous leaps over the last 25 years, and it’s about to make bigger leaps,” … Read more