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A Defender of Darkness in the Darkest Place on Earth

12 septembre 2025 à 05:00
A Chilean astronomer has become dedicated to battling light pollution in the Atacama Desert and preserve what is considered the best place on Earth to study space.

© Cristobal Olivares for The New York Times

Eduardo Unda-Sanzana at the Paranal Observatory in Antofagasta, Chile.

Happy 10th Birthday to the Laser Interferometer Gravitational-Wave Observatory. Now Drop Dead.

10 septembre 2025 à 12:07
Ten years ago, astronomers made an epic discovery with the Laser Interferometer Gravitational-Wave Observatory. Cosmology hasn’t been the same since, and it might not stay that way much longer.

© LIGO/Caltech/MIT/Sonoma State (Aurore Simonnet), via Science Source

An artist’s rendering of two black holes spiraling around each other, a phenomenon scientists believe produced the gravitational waves of the GW170104 signal detection of Jan. 4, 2017
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