Mysteries of the Outer Solar System with Dr. Steven Desch 

Can we just take a moment to appreciate how JMG doesn't litter his videos with annoying sponsors and ad-breaks

John, your guests are not only the best in their field, but the most enthusiastic. Theyre always willing to talk, and your show is all about asking the right questions, and letting the guest spill their guts, about what they are passionate about. I understand and respect that, because i, as a professional in my own field, who is passionate about what i do, feel their passion in my soul. Good show bro.

"...if you just ask them nicely..." Homie earned my respect for his lighthearted take on his own craft, right at the start. If you cant go to work, and have a good time, why go to work? I like how he already shared a small piece, that most wont understand, right off the line.

Listening to this channel is always one of the positive things of my week

These episodes bring me so much joy and comfort. Thank you so much JMG.

always listen to event horizon when im going sleep JMG is such a great podcast host and this podcast is criminally underrated

Thanks for the videos John cheers from Toronto

Great episode! Listened to it while prepping dinner and Desch had me listening to his every word. The questions were all great too and flowed perfectly.

Every time I listen to this gem of a channel, I learn something utterly new an fascinating. JMG brings his listeners topics of research not covered by the mainstream. More people need to listen to Event Horrizon!

I'm diving brain first into the event horizon 🧠 🕳

I had an "Ah ha" moment whilst listening to this interview. "The migration of Neptune destabilsed the Kuiper belt." I am presuming that material that then fell into the inner solar system is the source of the Late Heavy Bombardment. I had always been rather blank about the why the LHB had occured.

Good explanation of the red edge and the fact that this might be more common on planets where there is photosynthesis since it keeps plants from getting too hot.

John Michael is awesome love his vids on his channel!

Drifting off into the outer solar system. Thank Possum it’s Thursday. 💚♾️

0:14: 🌌 Steve Dash, an astrophysicist, discusses the use of meteorites to understand the formation of the solar system. 5:47: 🌌 The video discusses the melting process of asteroids and the use of uranium-led dating to determine when these events occurred. 10:57: 🌍 The absence of Jupiter during Earth's formation could have led to more life-bearing elements on the surface, but also potentially more impacts. 15:55: 🌍 The video discusses the presence of methane and other compounds in the atmospheres of exoplanets as potential indicators of a biosphere. 21:23: 🌱 The red edge phenomenon in plants is a universal sign of photosynthesizing life. 26:24: 🌌 The collision and migration of Neptune caused Haumea to spin faster, resulting in the formation of its family members. 31:35: 🪐 The possibility of a ninth planet in our solar system is intriguing and plausible. 37:05: 🌌 During the early stages of the solar system, collisions between Kuiper Belt objects and the migration of Neptune would have generated trillions of fragments, sandblasting the surfaces of thousands of Pluto-like objects. 42:26: 🌌 The video discusses the use of uranium-led dating system to determine the age of objects in meteorites and the formation of chondrels and calcium aluminum-rich inclusions (CAIs) in the early solar system. Recap by Tammy AI

Excellent interview. Probably rthe best of the past few months. Verry engaging.

Holy cow! I was listening to your event horizon shows hours ago! Basically when you uploaded this video

Great video and information !

Greetings from Finland! Thanks for your great show with great guests, been listening a lot of it this winter. Love the enthusiasm towards science! All the content makes existence a lot more fascinating 🙏

Next time he's a guest, could you ask more about the early solar electric fields and current heliospheric properties. I often wonder if they're related.

Love all of this, but the very end made me laugh. Great stuff as usual man.

Dude's outlook notifications were really triggering me 😅 I really enjoyed what the guest had to say though. I think I even understood some of it!

Interesting interview! Thanks!

Exceptional interview.

Stellardrone - Ascent ..really gets the mind thinking.

Anna is the best! 😁 Great video as always! Be safe out there y'all and thank you for doing what you do! 🍻🌎♥️🎶🕺

Hope you get to interview Issiac Arthur one day. Would be such an interesting interview

“Welcome to the program” “Meh” Is that what I heard?

I always get my best sleep on Thursday nights. Thank you JMG!! 💫🙏☮️🍻

You two are so funny at the end. Anna :)

I hit the like button before the opening ad was finished

Shoutout my boy Farfar out

I dont want to be crude but id much rather hear discussion about the talk then the sucking up to amazing JMG 😂

background picture in the first minute of this video is background pic on my laptop for many years...sunrise from space

Took 5 days for me to see this!

Less exoplanet, more Oort cloud! Chop chop!

long time sub....the Ads are OUT OF CONTROL

Hey John what's up, really enjoying the video, however, you should pull your guests aside and tell him to do something about that irritating chime that keeps sounding, makes me think there's an emergency broadcast coming through LOL!

My question may be unrelated, but something the good doctor said gave me a thought: is it possible that Earth is a chthonian world? Are there any molecules here that could only have formed under pressures that Earth doesn't presently have the mass to produce?

what is that sound at 10:00 ?

I don’t believe that only 86 comments are here…this is my science education and homework all in one…hardly wAit till my daughter and I are listening together 😂😊😊😊😊

9:45 still in the inner solar system

A micro nova every 12,000 years would melt the chondrites.

I have a question, do all stars rotate in the same direction? If not, what determines that?

I'm glad Dr. Steve Desch knows to ask his meteor experiment "nicely" to get his answers. Researchers who ask their LK-99 samples very rudely. Well let's say they got what they deserved.🤪

I LIKE THE GRAPHICS MADE BY THE ARTISTS, BUT ARE THE GRAPHICS AN ACCURATE PICTURE? URANUS BLEW MY MIND WHEN I LEARNED IT ROTATES ON ITS "SIDE" AND A MOON ROTATES OPPOSITE OF URANUS'S ROTATION!!! ANOTHER QUESTION,WHAT MAKES A PLANET ROTATE WHILE ITS MOON DOES NOT. OR CAN ITS MOON ROTATE WHILE ITS PLANET DOES NOT? i'VE READ JUPITOR IF IT WAS 13% LARGER IT WOULD GLOW LIKE A SUN, IS THAT TRUE? HOW MANY MINERALS ARE ASTEROIDS MADE FROM? CAN COMPANIES MINE ASTEROIDS?

ya need to order your playlists from newest to oldest not the other way around.

If nitrogen ice sheets are normal and natural, why was the first one we ever saw an interstellar object? Were people talking about nitrogen ice sheets before Oumuamua, or is it maybe ad hoc?

Dark matter is null inert matter that the fabric of space is made of, but instead of thinking of space as a fabric think of it as a very viscus liquid made of particles to small they have to be measured in the Planck length. That is dark matter. Dark energy is the flow of these particles throughout the universe. Gravity is large amounts of matter warping this fluid. Gravitational waves are the ripples caused by matter moving through the fluid. Static electricity and electromagnetism is what causes matter to attract itself to other matter and at a certain point the orbital mechanism takes over once objects become massive enough. There is no such thing as empty space or vacuum. Electromagnetic waves can travel through the void of space because it uses dark matter as a medium to traverse through.

Earth plants are green. But they used to be purple. So why a red edge not a green edge?

Just a little more material and our system could have easily been a binary. Without us 😂

How come Saturn's largest moon has lakes of methane?

What is the name of the women who opens this program?

We have a 9th planet, Pluto.

Bah like #399 my ocd is acting up

Steve desch welcome to the program, meh. Anyone else noticed that haha

Steven Desch the Avi Loeb hater number 1.

What was that windows beep happening in the video? Was annoying, it's on your end probably. A lot of your videos have that sound coming in.

Don't forget about the planet that crashed into the Earth to form the moon.

YOU PHYSICIST THROW OUT "A BILLION HERE AND A BILLION THERE, LIKE YOUR GIVING AWAY CHANGE IN A CANDY STORE. ONE LIGHT YEAR IS SIX TRILLION MILES. YOU GUYS SAY THE NEAREST STAR IS TWO OR THREE LIGHT YEARS, HOW CAN YOU PHYSICISTS CONVEY THESE TIME SCALES AND DISTANCES FOR US CURIOSITY SEEKERS?

Is this the same Desch who poo pooed Avi Loeb finding an interstellar meteor off Papua New Guinea?

10 x more water than earth is 10 x 70% is more than 100% ??? oh, i get it, the water is very deep . It is already known that the physics is very different in other solar systems. Accretion of planets is a fantasy. Love to all .

I've been a member for a long time. your Ads are enough to make me unsubscribe

and here's where science goes wrong.......notice the shift from "we can infer" to "we know!" between 2.30 and 3 minutes at the very start of this video..........................

I like that we're finally adding planets to the solar system albeit as dwarf planets. Ceres should have been added long ago. 🪐