Can we just talk about how there’s an asteroid in the asteroid belt called Ida that has a dinky little moon called Dactyl? Ida’s gravitational field is only about 1.1cm/s^2 and mass is less than 5x10^16kg (about 50quadrillion) compared to Earth’s less than 6x10^24kg (around 6septillion). Is it classified as a planet? No. It’s still an asteroid, with an asteroid moon.
There are three criteria that an object in space must meet before it is classified as a planet in our solar system. Simply, the three criteria are:
it must orbit the Sun
it must be big enough for gravity to squash it into a round ball (Ida doesn’t fit this)
it must have cleared other objects out of the way in its orbital neighborhood. Meaning that it’s massive enough to have either pulled in the debris in the way of it’s orbit, or slingshotted it out into space as it passed.
Pluto does not fit this third definition. The reason scientists decided the need to create these rules was because while Pluto was small and had a really strange orbit, the discovery of an object beyond Pluto that was bigger with an even stranger orbit, now called Eris, forced scientists to rethink the definition of a planet. Turns out Pluto and Eris are part of another belt beyond Neptune called the Kuiper belt. If Pluto keeps its planet classification, would Eris be our 10th planet? If the answer is yes, there is about 43 other objects in the Kuiper belt along with Eris and Pluto and maybe 1 object in the asteroid belt between Mars and Jupiter that would then be classified as planets. We would have over 50 planets in this solar system. Things are starting to get messy, huh? So, naturally, they created criteria that would allow them to neatly place things into neater categories. Unfortunately, scientists realized that Pluto didn’t fit the new criteria and so was forced to put it into the sub-category of dwarf planets.
Basically what I wanna say is that I’m hearing a lot of people equating “Pluto isn’t classified as a planet” to “Pluto is no longer part of the solar system” and I don’t know how you can be more wrong. Science and how they define things is always changing because new things are always being discovered and in order to keep things organized, sometimes new rules and definitions need to be brought in and change isn’t always a bad thing.
And what good is science if it can’t change and adapt to new ideas?
Focus on the dream, focus on the details, picture them, feel them. The TARDIS will track on your subconscious and extract the relevant information. It should be able to home in on the moment in your timeline when you first had that dream.
Dancing Queen by ABBA came out in August, 1976, which was just in time for Sirius’ seventeenth birthday, and if you don’t think Remus got the other Marauders to play it every possible chance to try and annoy Sirius, you’re wrong. If you don’t believe that Sirius loved every second of it, but pretended not to in public (because he’s punk, damn it), then, frankly, I have no idea what you’re even doing with your life.
orphan black is terrifying because fans can’t calm themselves down by saying things like “cosima isn’t going to die, her actress was on set for season 3” because tatiana will never not be on set and this haunts me