Saturday, May 16, is a day to see how light influences our lives with the International Day of Light. The celebration is a global initiative that provides an annual focal point for the continued appreciation of light and the role it plays in science, the economy, culture and art, education, and sustainable development, and in fields as diverse as medicine, communications and energy.
Peering into the darkness to see what we could not previously see, the Hubble Space Telescope has been delighting scientists and the general public with revealing details and images of galaxies and celestial phenomena. The American Institute of Physics recognizes and celebrates the momentous occasion of the 30th anniversary of its launch and Physics Today is highlighting the anniversary in its April issue with a look back at the history of the telescope and analysis of Hubble’s discoveries over the past 30 years.
Given a choice of items to lose on a train, a top-secret document detailing the newly developed hydrogen bomb should be on the bottom of the list. In January 1953, amid the Red Scare and the Korean War, that’s exactly what physicist John Archibald Wheeler lost. In the December 2019 issue of Physics Today, science historian Alex Wellerstein details the creation of the document and Wheeler’s day leading up to its mysterious loss.