<page_title> List of gravitational wave observations </page_title> <section_title> List of gravitational wave events </section_title> <table> <cell> GW151226 <col_header> GW event </col_header> <col_header> Type </col_header> </cell> <cell> 2016-06-15 <col_header> Date published </col_header> <col_header> Type </col_header> </cell> </table>
On 15 June 2016, GW151226 was the third gravitational wave signal detected.