hi everyone I'm Diana you're watching physics girl and there's an imminent total solar eclipse I know we all know about it already we also know that I'm going to be the one that doesn't get to see it because it's my fault I agreed to go to Charleston I'll be looking to start a post cloud cover support group for any of you out there anyway this got me wondering do eclipses happen in other parts of the solar system like does the Curiosity rover get to see a total solar eclipse on Mars short answer no Martha's moons Phobos and Deimos are too tiny to block up the Sun completely but you do get a funky partial solar eclipse seen here filmed by curiosity itself on Mars surface Phobos looks about 1/3 the size of the moon and the Sun looks about 2/3 as wide compared to how it looks on earth so you get that partial eclipse can we take a second to recognize how amazing it is that we have a video of what a solar eclipse looks like from the surface of another planet anywho no Mars tse but Jupiter has 69 moons now we just need those most to be big enough and close enough to Jupiter it does help but Jupiter is way further away from the Sun so the Sun looks a lot smaller in the sky which means Jupiter has multiple wounds with the right conditions in fact Jupiter can have multiple eclipses happening at the same time in 2004 the Hubble telescope took this photo three of Jupiter's largest moons Io Callisto and Ganymede are simultaneously casting shadows on Jupiter which means three total solar eclipses at three different locations on Jupiter that's so many giant cover-ups it's a conspiracy sorry Saturn Saturn get some unique eclipses because of its ring technically Saturn's rings aren't moons their belts of orbiting dust ice and rock but they end up making these gorgeous shadows [Music] Saturn sometimes cast the shadow on its rings kind of like what happens with the lunar eclipse here on earth here's some interesting stuff about Saturn Saturn has seasons cool because its axis is tilted just like Earth's axis but it takes 30 years for Saturn to go around the Sun so each season lasts over 7 years and depending on the season Saturn casts a different shadow on its ring and its rings casts a different shadow on Saturn now the object with the coolest eclipses in my opinion is Klug oh yeah yeah yeah fluted Wharf planet and not a real planet or whatever picture yourself on Pluto where the sky is also blue and the Sun is a tiny pinprick in the sky because the Sun appears about 40 times smaller in the sky on Pluto and a thousand times dimmer than on earth Pluto's moon Charon looks super big because it's half the size of Pluto and it's 20 times closer to Pluto than the moon is to earth so yeah it blocks out the Sun as far as the clips is go it's over - in fact there was a period of time between 1985 and 1990 when Charon eclipsed the Sun every day Pluto eclipses that being said our Eclipse here on earth is pretty perfect it's kind of an amazing coincidence that total eclipses happen here on earth at all because it's totally random that the moon would be exactly the right size and exactly the right distance from Earth but it won't always be that way because the moon is moving away from Earth at 4 centimeters per year so in 600 million years we won't get total solar eclipses because this is how an eclipse happens on earth the moon orbits the earth at a slight tilt of 5 degrees then every once in a new moon that's when the moon is between the Earth and the Sun and the dark side is facing the earth the moon is just aligned that it casts a shadow on earth if you were near the moon it would look like this this happens about two times every three years on a small sliver of Earth this time around the eclipse will be visible across a thin strip of the United States mainland and basically every other part of the mainland including where I live in San Diego you'll be able to see a partial eclipse so I'm super pumped for the 30% chance I have as no cloud cover and being able to see the total solar eclipse it's been almost 40 since the last TSE was visible in North America so wish me luck thanks for promo code physics girl during the signup process [Music] [Music]