Why itโs so difficult for NASA to land rover on Mars
Hereโs a look at how NASAโs Perseverance rover will attempt to land on Mars on Thursday, Feb. 18, 2021. Dr. Roger Weins, a NASA scientist, explained why itโs so difficult to land on the Red Planet. โPartly because of the very thin air on Mars. But with that thin air on Mars, that only slows it down to several hundred mph, and thatโs not good enough to land at all. After that, you have to use retro rockets.
NASA rover lands on Mars to look for signs of ancient life
(NASA via AP)CAPE CANAVERAL, Fla. โ A NASA rover streaked through the orange Martian sky and landed on the planet Thursday, accomplishing the riskiest step yet in an epic quest to bring back rocks that could answer whether life ever existed on Mars. Two spacecraft from the United Arab Emirates and China swung into orbit around Mars on successive days last week. AdPerseverance, the biggest, most advanced rover ever sent by NASA, became the ninth spacecraft since the 1970s to successfully land on Mars, every one of them from the U.S. โAre we alone in this sort of vast cosmic desert, just flying through space, or is life much more common? Two older NASA landers are still humming along on Mars: 2012โฒs Curiosity rover and 2018โฒs InSight.
122-year-old snow record may be broken: Just short of 3 feet
Robert Post, who owns a landscaping company, puts the final touches on a sidewalk he just cleared in Mt. This week's winter storm appears to have broken a 122-year-old record for the most snow in a New Jersey community from one storm. The National Weather Service made a preliminary report Tuesday that Mount Arlington in the northern part of the state got 35.5 inches of snow in the three-day storm. (AP Photo/Seth Wenig)MOUNT ARLINGTON, N.J. โ This week's winter storm appears to have broken a 122-year-old record for the most snow in a New Jersey community from one storm. The snowfall report came from a trained weather observer, and officials note there's no reason to doubt its veracity.