5 'Impossible' Things That Can Happen on Other Planets (Reaction)

5 "impossible" things that can happen on other planets, my thoughts and commentary on the subject(s). The ocean's deepest point is called Challenger Deep.

Challenger Deep:

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[Blues]

GJ 1214 is the name of the star (it's a red dwarf about 48 lightyears away from us) and "b" means, that it is the second object in this system. If there are more planets in this system, they would be named GJ 1214 b, GJ 1214 c, GJ 1214 d and so on.

GJ 1214 has no traditional name, because that star is very small and is not visible for the naked eye.

GJ stands for "Gliese & Jahreis", two astronomers who made the last edition of the "Catalogue of nearby stars". 1214 is the number of the star in this catalogue.

Sorry for my bad english... ;-)

[johnanthony]

At 10, 935 meters or 35, 876 feet, the deepest part of the ocean is called the Challenger Deep, located beneath the Mariana Trench :)

[nem]

How astronomers name stars: “hey what if we just slammed our head on a keyboard?” Cp7b89.-d

[dragonfly.effect]

I'll try to keep this brief-ish.  Exoplanets are  named after their star followed by the letter b for the closest in, c for the next, etc.  (Current record is a star with 8 planets, notated b–i.)   As for the naming of stars, that is an annoying system depending on when and how they were discovered.
Several dozen of the brightest stars have traditional names (e.g., Sirius, Vega, Rigel, Polaris), mostly from classical Latin, Greek, Arabic, or Persian.  Then all these plus other brighter stars got named for their (Latin) constellation preceded by a Greek Letter (Alpha Centauri, Tau Ceti, Theta Scorpii, etc.).  The letters were assigned in alphabetical order roughly from brightest to dimmest.  To complete the catalog of "visible" stars (close to ten thousand), numbers are used after the Greek letters are used up.  All this is just background context to the question asked in the video.
Modern practice is to assign designations based on the project in which they were first noticed or recorded.  In the 20th century, a series of catalogs was published by an astronomer named Gliese ("glee-za") and his collaborators.  The first version had stars named Gliese 1061, etc.  For the first extension, he named them GI 1 – GI 915.  (Reason for "I" unclear.)  Then on the next one he had help from someone named Jahreiss, so those stars got named GJ 1000, etc.  Which explains exoplanet "GJ 1214 b" (@ 47 ly).
Then there was the Kepler mission, which was the first satellite designed specifically to search for exoplanets.  Eventually a few thousand were found.  One of the earliest was Kepler 16 b  (245 ly).
Around the same time a satellite named CoRoT was launched by France/ESA with a similar mission, and apparently found CoRoT 7 b (520 ly), among others.
An earlier catalog of some 225 thousand stars was published by astronomer Henry Draper.  Hence the later serendipitous discovery of  HD 189733 b (63 ly).
As for Titan, well Saturn is the Roman counterpart of Chronos, who was himself a Titan, so I can't explain it; but it's 16–17 light days from the Sun.  Personally, I'm hoping for critters in the planet-wide watery ocean of Jupiter's moon Europa (about half as far away).

[Vanillastump]

You can also go outside with 2 different streetlights. When I walk my dogs at night sometimes I have 4 shadows.

[maximiliandegarnerinvonmon]

Love that you don't have a long intro. Straight to the point. Such a breath of fresh air. Not to mention probably the best smile on YouTube 😊.

[paiute]

As an amateur astrophotographer I find these video topics fascinating.

[joshuawillard]

Reminds me of something I constantly think about. We look at planets and say that life isn't possible because of weather, size, whatever. I wonder if there are civilizations that are looking at us saying, "Life can't be on that planet. Look at all the water. It just falls from the sky. And all those storms. No one can survive there." Just because Terrans (earthlings) can't live there, doesn't mean someone else can't.

[ranger-]

If we're not sure what is the deepest point in our oceans, even though we live here and explore it.... I'm not convinced there's any accuracy to telling me someone knows the depth of one on another planet? ;-) Always enjoy your episodes and watch them right away. Thanks!!

[Pixelblurr]

As someone who lives in Oklahoma, Tornadoes are incredibly scary to my friends who live in other states. Most people I know don't get freaked out by them though. I have slept through a few of them. Just depends on the person, but they can be very devastating when you go up to an F3-5.

[ravenward]

While I forget the title now there's a youtube video around here where someone took the time to independently verify an exoplanet discovery using a dlsr camera, telescope, and a home built rig to keep the scope on target while taking readings. Using that they were able to confirm the period of dimming when the object (exoplanet) passed in front of the star they were watching. It was neat stuff.

[Simon-hbrf]

regarding the "deepest point in the ocean" part i do agree with your logic that if we have only "mapped" a small part of the ocean floor we have no idea what would be the deepest, however there is some mathematical and scientific basis for this assumption.

in 1950 Marie Tharp produced the first map of the Atlantic ocean floor with a focus on the subsea fault lines, this finally proved theories of continental drift and later was instrumental in developing our modern understanding of plate tectonics. this lead to many such mapping efforts focusing on fault lines.

so basically although we have only mapped a small part of the ocean that effort has been largely focused on the massive rifts left in the ocean floor from active plate tectonics which would logically be deeper then areas with no active fault lines. so while it is possible there is some deeper part we have somehow missed until we can map the entirety in inch by inch detail, its reasonable and probable to assume that the deepest point would be in one of several specific regions where the geology would most likely allow for it. still that's why science always qualifies the statement with the word "known" but its not as wild a guess as you may assume at first.

this is of course a very brief simplified version of a poor explanation, but the point im trying to get across is that scientific facts always have a long and fascinating history of exactly how scientific communities came to their conclusions. if more people understood the reasoning and process behind establishing scientific fact people would be far less likely to dismiss them so quickly.

[gkiferonhs]

Usually whoever first publishes about a given celestial body is granted naming rights, but there are far too many object to give anthropomorphic names and they uses the systemic names using letters and numbers that indicate where the object is, where and usually when it was discovered. These are sometimes referred to as catalog names because an ordered listing of these bodies is available.

[charlesf]

I agree with you about tornadoes. When I was younger I devoured anything I could get on meteorology, especially storms. I even have a couple of courses from The Great Courses, one on general meteorology and one on extreme weather. Very interesting. But it's even more frightening to consider that an EF5 tornado (301 mph winds) doesn't even compare to those winds on the planet HD198733-b. Tornadoes are why I wouldn't live in the middle of the country. But then, the mid-south is another tornado-prone area these days (I'm from Nashville) and I'd be leery of moving back there. I used to have some interest in astronomy; this video makes me think of getting back into it perhaps. Thank you.

[stevesheroan]

00:43 “Never seen it.”

I now selfishly want her to react to the de-specialized Star Wars movie. She could watch it from a historical perspective, because it truly is a piece of cinematic history. She would certainly have to suspend all disbelief in regard to physics, but it’s arguable (as is anything related to the Star Wars universe) that we don’t have to hold that galaxy far, far away to the constraints of our galaxy’s physics.

[ronaldmorgan]

Gravity, temperature, atmosphere, type of star (sun), distance from star, chemical makeup, etc, are the main variables that determine the possibility of life. That's why so many say that life is rare. Things must be almost perfect.

[Sandsodalime]

Just loving this channel and your thirst for knowledge 💚

[dubsteplovingginger]

I absolutely love your content, innocent wholesome reactions on entertaining highly educational subject that you also know a lot about 👌

[fewwiggle]

Yes, I share your skepticism of the certainty with which they presented the conditions on planets many many light years away.

[MasterIceyy]

"Tornado's are alarming" I think I might need that on a shirt