InSight landed on Mars on Nov. 26, 2018 at 11:52:59 a.m. PT (2:52:59 p.m. ET). The entry, descent, and landing (EDL) phase began when the spacecraft reached the Martian atmosphere, about 80 miles (about 128 kilometers) above the surface, and ended with the lander safe and sound on the surface of Mars six minutes later.
Studies have repeatedly linked maternal smoking during pregnancy with reduced sperm counts in male offspring. Now a research team at Lund University in Sweden has discovered that, independently of nicotine exposure from the mother, men whose fathers smoked at the time of pregnancy had half as many sperm as those with non-smoking fathers.