A Mars landing is a landing of a spacecraft on the surface of Mars. Of multiple attempted Mars landings by robotic, unmanned spacecraft, six were successful. There have also been studies for a possible manned mission to Mars, including a landing, but none have been attempted.
In 1969, the Soviet Union prepared a 5-ton orbiter called M-69. Two copies of the probe, Mars 1969A and Mars 1969B, were lost in launch related complications caused by prob...
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Mars landing
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Cover-up
A cover-up is an attempt, whether successful or not, to conceal evidence of wrong-doing, error, incompetence or other embarrassing information. The expression is usually applied to people in authority who abuse their power to avoid or silence criticism. Those who cover up may be those responsible...