What are the warning signs on Mars?

At a large press conference in Moscow, Yu Te, a Soviet space expert. Bosov announced a surprising news: An unmanned spacecraft sent by the Soviet Union on an exploration mission to Mars suddenly photographed a strange warning slogan from the desolate surface of Mars on March 27, 1990. All messages were interrupted. Some scientists speculated that it might have been destroyed by Martians.

This warning slogan is written in English with the word "leave". Judging from the photos sent back by the radio, the huge slogan seemed to be carved out of stone. Proportionally estimated, the two words were at least half a mile long and 75 meters wide. The slogan seems to be carved out of a giant mountain rock, and judging from its smooth surface, it may have been cut with a laser. This sign does not appear as old and eroded as the mysterious face photographed by a US spacecraft on Mars in 1976. This warning sign only appeared recently. Why do Martians write these two words? Dr. Bosov said: "It is obviously aimed at people on Earth. I think it must be because we have sent too many Mars spacecraft and disturbed the peace of life on Mars, so we issued this warning and told us to leave."