Mastodon Users7,148,316 accounts
+4,559 in the last hour
+217,176 in the last day
+555,393 in the last week
+4,559 in the last hour
+217,176 in the last day
+555,393 in the last week
PFP by IG/haneensiddiq
| website | https://jamesodonoghue.wixsite.com/home |
Dr James O'Donoghue
- 2.8K Followers
- 102 Following
- 21 Posts
Planetary scientist, science communicator and amateur animator 🪐. Previously NASA, now JAXA. Next: applying for UK positions.
PFP by IG/haneensiddiq
PFP by IG/haneensiddiq
@mcnees wow it's equal and opposite, almost
Kevin M. GillSaturn, when viewed in the near-infrared methane absorption band, appears blue. You're able to peer through the upper hazes into the clouds below and the bands and belts start to take shape. It's still false color, but almost looks like a whole new planet.
Images: NASA/JPL-Caltech/SSI/CICLOPS/Kevin M. Gill
@teledyn tidal forces impose a torque which slows planets down, either from moons or the Sun. Thermal tides caused by the atmosphere itself, which provides a friction against the planet's rotation, can slow a planet down as well, which is why Venus is so slow
The planets to scale in every way... plus dwarf planets Ceres and Pluto, the only two mapped dwarf planets.
The material from which all planets grew was orbiting the Sun. When growing planets attract this material, they get larger but also faster, as they also take on the material's momentum. That's why large planets like Jupiter are generally faster!
@Pashhur quite a coincidence, yeah!
@JustRosy oh that's funny, I totally forgot that when I rearranged this. It used to be landscape... I'll post the other shortly
@Phancypants please be parody
Planetary rotations and tilts — compared!