Science always revises theories and premises, based upon new information and proofs.
I can think of two examples in astronomy. The first is the change of category of Pluto. It's no longer consider a separate planet in the solar5 system. Instead, it's considered to be more like an asteroid or a moon of Nepture.
Here is a picture of the second:

Proof positive that there is water on Mars.
This happened during the fall of either 1985 or 1986.
I entered a convenience store on the far northeast side of Indianapolis at four in the morning to buy some cigarettes.
I saw a man with a brown beard, wearing a plaid shirt and a baseball cap. He was sitting at a table there.
He waved at me. I waved back, because back then I was friendlier than I am now.
I was just about ready to leave the store when he asked me, "Ya goin' to Anderson?"
After I noticed his red eyes, I told him I was going to Indianapolis.
I got into my car and drove home by another, more roundabout way.
As I drove, I wondered:
- Why he was at the convenience store;
- How he got to there;
- Who left him there;
- Why he wanted to go to Anderson.
I haven't posted since April 14, a little more than five weeks ago, because of matters that are more important than this blog. Some were personal. Others involved the health of some family members.
When things get back to how they were before, I'll post then. I might even post about those matters. At the least, I wanted to post one item this month.
In the meantime, watch this space. And enjoy the Memorial Day holiday and all the days of this summer.
Gorman had a disconcerting look in his eyes.
When you saw his profile, it was as if his eyes always looked straight ahead and focused on the horizon. They rarely, if ever, looked to the side.
It was as if he didn't see you or you weren't around. Or it was as if he was trying to hide from you, or embarrassed or ashamed to be where he was.
Some questions have no good answers.
One is: Were you a virgin before you were married? If you answer yes, you seem to be a loser. If you answer no, you're a slut.
Another is: When did you stop beating your wife? If you answer that with a date -- say, November 1, 2000 -- you're a wife beater. If you say you never beat her, you're a liar.
If I can think of any more, I'll post them.