[2] TWINS provides continuous wind and air temperature measurements to help understand the seismic data from the SEIS instrument.

[3] InSight will provide a continuous and higher-frequency record of pressure, air temperature and winds at the surface of Mars than previous in situ missions.

[6] At the same time, the lander uses its cameras to document cirrus clouds that develop high above Elysium Planitia, any instances of fog that appear along the ground, as well as dust devils.

[7] With this data, scientists are able to gain even greater insights into Mars' weather and climate, supplementing what was collected by previous missions, and what is currently being gathered by the Curiosity rover about 600 km to the south.

[7] TWINS on InSight is part of what is called the Auxiliary Payload Sensor Suite, forming a "weather station" which components include:[6]