APOD: 2019-10-04 – InSight on a Cloudy Day (Narrated by Brian)

APOD: 2019-10-04 – InSight on a Cloudy Day (Narrated by Brian)


Hello! Astronomy Picture of the Day – October 4th, 2019 Today’s video is about InSight on a Cloudy Day Clouds drift through the sky as the light fades near sunset in this three frame animated gif The scene was captured on sol 145 beginning around 6:30pm local time by a camera on the Mars InSight lander Of course, InSight’s martian day, sol 145, corresponds to Earth calendar date April 25, 2019 Under the 69 centimeter (2.3 foot) diameter dome in the foreground is the lander’s sensitive seismometer SEIS designed to detect marsquakes Earthquakes reveal internal structures on planet Earth, and so tremors detected by SEIS can explore beneath the martian surface In particular, two typical marsquakes were recorded by SEIS on May 22 (sol 173) and July 25 (sol 235) The subtle tremors from the Red Planet are at very low frequencies though, and for listening have to be processed into the audio frequency range In the sped up recordings external noises more prevalent on cool martian evenings and likely caused by mechanical shifts and contractions have been technically dubbed dinks and donks Thanks for watching! and don’t forget to like, comment, and share!

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