Humanity’s greatest explorers aren’t always human. Join us as we celebrate the achievements of the Mars Exploration Rovers Opportunity at the completion of a 15 year mission: https://go.nasa.gov/2SxMkjK | NASA Jet Propulsion Laboratory

43K views · 682 reactions | NASA's mission controllers are hoping to confirm the Perseverance rover's landing on the surface of Mars at 3:55 p.m. ET on Thursday. Mariek Schmidt of Brock University is part of a team investigating Martian soil chemistry using an instrument called PIXL. | CBC News | Facebook