Uploaded August 2023 | Updated September 2026, 1 hour ago
Mars is a planet that rotates on its axis, just like Earth. However, unlike Earth, Mars’s rotation is not constant, but gradually speeding up over time. This means that the length of a day on Mars, or a sol, is getting shorter by about 0.76 milliseconds per year. Scientists are not sure why this is happening, but they have some possible explanations. One of them is that the mass of Mars is changing due to the accumulation or loss of ice on its polar caps. Another one is that the surface of Mars is slowly rising or sinking due to the effects of past glaciation and erosion. These changes in mass and shape can affect how fast the planet spins, like an ice skater pulling in or stretching out their arms. To measure the tiny changes in Mars’s rotation, scientists used radio waves sent and received by NASA’s InSight lander, which was on Mars from 2018 to 2022. By analyzing the Doppler shift of the radio waves, they were able to calculate how fast Mars was spinning and how much it was wobbling. This information can help us learn more about the interior and history of Mars, as well as its future evolution.
#shorts
#mars
#space
#nasa
#astronomy
#planets
Mars is a planet that rotates on its axis, just like Earth. However, unlike Earth, Mars’s rotation is not constant, but gradually speeding up over time. This means that the length of a day on Mars, or a sol, is getting shorter by about 0.76 milliseconds per year. Scientists are not sure why this is happening, but they have some possible explanations. One of them is that the mass of Mars is changing due to the accumulation or loss of ice on its polar caps. Another one is that the surface of Mars is slowly rising or sinking due to the effects of past glaciation and erosion. These changes in mass and shape can affect how fast the planet spins, like an ice skater pulling in or stretching out their arms. To measure the tiny changes in Mars’s rotation, scientists used radio waves sent and received by NASA’s InSight lander, which was on Mars from 2018 to 2022. By analyzing the Doppler shift of the radio waves, they were able to calculate how fast Mars was spinning and how much it was wobbling. This information can help us learn more about the interior and history of Mars, as well as its future evolution.
#shorts
#mars
#space
#nasa
#astronomy
#planets
