Einstein’s understanding of gravity, as outlined in his general theory of relativity, predicts that all objects fall at the same rate, regardless of their mass or composition. This theory has passed test after test here on Earth, but does it still hold true for some of the most massive and dense objects in the known universe, an aspect of nature...
Over the past several years, the Atacama Large Millimeter/submillimeter Array (ALMA) has transformed our understanding of protoplanetary disks — the gas- and dust-filled planet factories that encircle young stars. The rings and gaps in these disks provide intriguing circumstantial evidence for the presence of planets. Other phenomena, however,...
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A delegation of members from the United States House of Representatives visited the ALMA Observatory on April 4th. This visit was organized by the US Embassy in Chile, Associated Universities, Inc. (AUI) — the North American partner in the observatory — and ALMA. There were a total of 13 representatives from the House Committee on Science, Space...