A dark sky is shown above a bright desolate landscape. The landscape is the Moon and large shadows appear, with one being the shadow of lunar lander. A bright dot appears over the horizon that is distant planet Earth. Please see the explanation for more detailed information.
一片黑暗的天空悬于明亮而荒凉的景观之上。这个景观是月球，大片阴影显现，其中一个是月球着陆器的影子。在地平线上方出现了一个明亮的光点，那是遥远的地球。有关更多详细信息，请参阅说明。
2021年02月23日 Video: Perseverance Landing on Mars Video Credit: NASA/JPL-Caltech, Mars 2020 Mission Team Explanation: What would it look like to land on Mars? To better monitor the instruments involved in the Entry, Decent, and Landing of the Perseverance Rover on Mars last week, cameras with video capability were included that have now returned their images. The featured 3.5-minute composite video begins with the opening of a huge parachute that dramatically slows the speeding spacecraft as it enters the Martian atmosphere. Next the heat shield is seen separating and falls ahead. As Perseverance descends, Mars looms large and its surface becomes increasingly detailed. At just past 2-minutes into the video, the parachute is released and Perseverance begins to land with dust-scattering rockets. Soon the Sky Crane…
2021年02月20日 Perseverance: How to Land on Mars Image Credit: NASA, JPL, Mars 2020 Explanation: Slung beneath its rocket powered descent stage Perseverance hangs only a few meters above the martian surface, captured here moments before its February 18 touchdown on the Red Planet. The breath-taking view followed an intense seven minute trip from the top of the martian atmosphere. Part of a high resolution video, the picture was taken from the descent stage itself during the final skycrane landing maneuver. Three taut mechanical cables about 7 meters long are visible lowering Perseverance, along with an electrical umbilical connection feeding signals (like this image), to a computer on board the car-sized rover. Below Perseverance streamers of martian dust are kicked-up from the surface by the descent…
2021年02月19日 Mars Perseverance Sol 0 Image Credit: NASA, JPL, Mars 2020 Explanation: After a 203 day interplanetary voyage, and seven minutes of terror, Perseverance has landed on Mars. Confirmation of the successful landing at Jezero crater was announced from mission control at NASA’s Jet Propulsion Laboratory in Southern California at 12:55 pm PST on February 18. The car-sized Mars rover’s Front Left Hazard Avoidance Camera acquired this initial low resolution image shortly after touchdown on mission Sol 0. A protective cover is still on the camera, but the shadow of Perseverance, now the most ambitious rover sent to the Red Planet, is visible cast across the martian surface. Tomorrow’s picture: light-weekend 毅力号火星车的第一天 影像提供: NASA, JPL, Mars 2020 说明: 经过203天的行星际旅程，以及恐怖7分钟之旅后，毅力号着陆在火星上。在太平洋标准时间2月18日午后12:55，位在南加州的美国航太总署．喷射推进实验室的任务控制中心，正式确认在耶杰罗坑的著陆成功。着陆后不久，这部房车大小的火星车之左前避险相机，拍下了上面这幅初期低解析影像，标志这部火星车火星历的第一天。虽然相机仍在保护罩内，不过在影像里，仍可清楚见到这部空前的毅力号火星车，在火星表面投下的身影。 明日的图片: light-weekend
2021年02月16日 Perseverance: Seven Minutes to Mars Video Credit: NASA, JPL Explanation: How hard is it to land safely on Mars? So hard that many more attempts have failed than succeeded. The next attempt will be on Thursday. The main problem is that the Martian atmosphere is too thick to ignore — or it will melt your spacecraft. On the other hand, the atmosphere is too thin to rely on parachutes — or your spacecraft will crash land. Therefore, as outlined in the featured video, the Perseverance lander will lose much of its high speed by deploying a huge parachute, but then switch to rockets, and finally, assuming everything goes right, culminate with a hovering Sky Crane that will slowly lower the car-sized Perseverance rover to…
2021年02月15日 Landing on Mars: Seven Minutes of Terror Video Credit: NASA, JPL Explanation: Starting Thursday, there may be an amazing new robotic explorer on Mars. Or there may be a new pile of junk. It all likely depends on things going correctly in the minutes after the Mars 2020 mission arrives at its new home planet and attempts to deploy the Perseverance rover. Arguably the most sophisticated landing yet attempted on the red planet, consecutive precision events will involve a heat shield, a parachute, several rocket maneuvers, and the automatic operation of an unusual device called a Sky Crane. Thursday’s Seven Minutes of Terror echo the landing of the Curiosity rover on Mars in 2012, as depicted in the featured video. If successful, the car-sized…
