Roeland van der Marel31 May 2012
Hubble measurements constrain M31's sideways motion against distant background galaxies, enabling a quantitative forecast of its future encounter with the Milky Way.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble measurements constrain M31's sideways motion against distant background galaxies, enabling a quantitative forecast of its future encounter with the Milky Way.
This factsheet is generated from stored World History Database records matching the country, broad category, detailed category and exact Event value shown above. Duplicate display records are collapsed; database wording is otherwise preserved. Source provenance varies by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.