<page_title> Age of the universe </page_title> <section_title> Planck </section_title> <table> <cell> Age of the universe (Ga) <col_header> Parameter </col_header> </cell> <cell> 13.799±0.021 <col_header> TT,TE,EE+lowP +lensing+ext 68% limits </col_header> </cell> </table>
The age of the universe is 13.799±0.021 billion.