<page_title> Hubble's law </page_title> <section_title> Observed values of the Hubble constant </section_title> <table> <cell> 2019-03-18 <col_header> Date published </col_header> </cell> <cell> 74.03±1.42 <col_header> Hubble constant (km/s)/Mpc </col_header> </cell> <cell> Hubble Space Telescope <col_header> Observer </col_header> </cell> <cell> 2018-07-18 <col_header> Date published </col_header> </cell> <cell> 67.66±0.42 <col_header> Hubble constant (km/s)/Mpc </col_header> </cell> <cell> Planck Mission <col_header> Observer </col_header> </cell> </table>
The Planck mission published in 2018 indicated a value of 67.66±0.42 and in 2019, a value of 74.03±1.42 has been determined using the Hubble Space Telescope.