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Solar System

Sun

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Mars (Curiosity's Successfully Drills 'Duluth')

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Titan

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Time-lapse: Preparing Sentinel-3B for liftoff


 
Mars



Dust is anything but boring on the Red Planet. It is one of the most dynamic geological processes on the alien world: a whopping 2.9 trillion kg of dust is exchanged between the surface and atmosphere every year. It also controls the planet’s temperature by absorbing and scattering solar and infrared radiation.

Interesting read, thanks @dorsetknob

Noachis Terra, Hephaestus Fossae, Indus Vallis, Ophir Chasma, Doublet Crater

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A swirling storm somersaults through Jupiter's South Equatorial Belt in this view taken by NASA's Juno spacecraft.





 
Drone said:
:confused: Huh? Sun's atmoshere is x1000 hotter than its surface and it's a big mystery in physics

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sorry, I realize that there are definitely things in nature and the various *dynamics worlds we don't understand, and I don't argue that we don't understand this specific principle. I just find any statement referring to the Sun as "mysteriously hot!" as amusing as hell :laugh:. It's the sun. A ball of burning gas that won't stop burning for millennia. We feel the heat from it 93 million miles away. I'm going to conjecture that the Sun itself, and the area immediately surrounding it, is freaking hot, not "mysterious" heheheh.
 
Ahhzz said:
sorry, I realize that there are definitely things in nature and the various *dynamics worlds we don't understand, and I don't argue that we don't understand this specific principle. I just find any statement referring to the Sun as "mysteriously hot!" as amusing as hell :laugh:. It's the sun. A ball of burning gas that won't stop burning for millennia. We feel the heat from it 93 million miles away. I'm going to conjecture that the Sun itself, and the area immediately surrounding it, is freaking hot, not "mysterious" heheheh.
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I get you, but it is kind of mysterious that a dense area apparently produces less heat than something more diffuse. My completely uneducated and wild guess is that explosive powers must be hotter, I guess? I mean, look at supernovas. For a brief moment, they're the most powerful and brightest things in the galaxy.. despite originating from the last stage of a star's life.
 
Ah I see. They call it mysterious because its behavior isn't straightforward. And Sun is more than just a ball of plasma. It has brothers and sisters somewhere in the Universe. There are more red dwarf stars than Sun-like stars. Sun and Earth aren't super mega special but unique.
 
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