The mysterious interstellar object, 3I/ATLAS, was photographed closely approaching Mars, European Space Agency (ESA) said. ESA's ExoMars Trace Gas Orbiter (TGO) and Mars Express had the closest view of the comet. It's only the third ever confirmed interstellar object to enter our solar system. It was reportedly travelling at a speed of 2,10,000 kmph when ESA's spacecraft captured its images.