The ATLAS Comet and the Kuiper Belt
As it is with any science, knowledge increases over time and with better equipment. This is especially true with astronomy. Classifications of celestial objects seemed to be under control, despite the occasional anomaly. Those pesky creationists with their science facts required a lot of Making Things Up™ to protect the deep time narrative.
Gran cometa de 1882 by Jose Maria Velasco |
Asteroids and comets used to be much simpler. I remember when there were 2,000 known asteroids. Now the number is closing in on one million. I remember when a dozen new comet discoveries in a year was a bunch. But anymore, even a bad year would have far more discoveries than that. The total number of known comets now exceeds 4,000. And comets and asteroids once were distinct things: asteroids were rocky; comets were icy; and comet ices sublimed into gas that we could see. Furthermore, the orbits of the two types of bodies were very different. But as I’ve previously written, the distinction between the two groups has become blurred. In recognition of that blurring, in 2006 the International Astronomical Union established a new classification, Small Solar System Bodies (SSSBs) to include both asteroids and comets.
To read the rest, fly on over to "P/2019 LD2 (ATLAS): The Latest Proof of the Kuiper Belt?" Also, don't blame me for the weird appearance. Google, owners of Blogger where you're reading; this, decided to change the interface and made things much, much worse. I am seriously considering moving to another blogging platform.