[deleted] t1_j97zwis wrote on February 19, 2023 at 11:20 PM

TIL! Still, what mechanism could we use to increase its spin? If it happened to blow a big chunk of the atmosphere away I think that's a plus, no?

I'm still surprised that "total sun-shading" seems to have a consensus cooldown period of less than a decade.

CarrotyTucker t1_j97rm0p wrote on February 19, 2023 at 10:19 PM

Reply to This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80

So many impacts. Is this due to the lack of atmosphere, that would normally cause most asteroids to burn up?

MissBunny09 t1_j97rhc5 wrote on February 19, 2023 at 10:18 PM

Reply to This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80

Do the remains of river valleys mean there was once water on Mars?

terabranford t1_j97qx8d wrote on February 19, 2023 at 10:14 PM

Reply to The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77

I realize something like this may take forever to answer, but: is the tail moving at all?

vipperofvipp t1_j97qhlj wrote on February 19, 2023 at 10:11 PM

Reply to comment by djh_van in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80

I’ve read a description before of Jupiter being described as a massive offensive lineman that protects Earth.

purchankruly t1_j97pc6j wrote on February 19, 2023 at 10:02 PM

Reply to The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77

Imagine your night view on your small planet in the tail.

Don_Paolo t1_j97pc0s wrote on February 19, 2023 at 10:02 PM

Reply to This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80

Iridescent blue glow near North Pole? What could that be?

Davicho77 OP t1_j97owyx wrote on February 19, 2023 at 9:59 PM

Reply to comment by Chiliconkarma in The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77

When two galaxies come close to each other, the gravitational forces between them can cause them to distort and deform. In the case of the tadpole galaxy, it is believed that the gravitational forces from the nearby galaxy have pulled material out of the galaxy, creating the long, thin tail-like structure.

This type of interaction is known as "tidal stripping," and it is thought to be responsible for the formation of many other tail-like structures in galaxies. As the two galaxies continue to interact, the tidal forces can cause more material to be pulled out of the tadpole galaxy, further elongating the tail.