The Perseverance rover is working in the Jezero Crater region of Mars. Scientists believe that billions of years ago there was a lake and a river delta here. To collect samples, the rover is scratching the surface of this region and collecting samples. After bringing them to Earth, scientists will be able to know whether there are signs of life on Mars or not.
As part of this intriguing mission, the first SRL was to carry the NASA Mars Ascent Vehicle (MAV) and an ESA-built Fetch rover to Mars in 2026. The fetch rover was to deliver the sample container carried by Perseverance to the MAV. After this, the Earth Return Orbiter of the European Space Agency would take samples from MAV and return to Earth by the year 2031.
But now NASA is planning to use dual-lander architecture. predetermined because dates have progressed. That is, the launch date of SRL has been shifted to the year 2028 and the sample return will be possible till 2033. NASA says that this will improve the chances of mission success.
By the way, this is not the only mission in which NASA has delayed. The timeline of another of his more ambitious plans, Artemis I, is also moving forward. Under the Artemis mission, there is a plan to send humans to the moon once again. This mission was about to be launched in November last year, but now summer is being seen this year.