Here is where you can find out if you were born on a full moon and if not, what phase of the moon happened on your birthday.
However, let it be known that because the oceans slosh around on Earth as it rotates about it’s axis (these are called ocean tides), the speed of Earth’s rotation is gradually slowing down. Billions of years ago a day on Earth was only about 8 hours, and now it continues to slow down. We compensate this twice a year by adding leap-seconds as needed.
This slowing of the earth’s rotation causes the moon to drift further away from us every year by about 1.5 inches, so eventually the Moon will escape Earth altogether and drift away.
It will never crash into Earth.
So you know what a blood moon is? It’s when the moon moves into the shadow of the earth (a total lunar eclipse), which causes the moon to grow fairly dark and at the same time pretty reddish as the image below shows.
Next, do you know what a supermoon is?
The moon has a slightly elliptical orbit around Earth. Sometimes full moons are further away and appear slightly smaller from Earth. Sometimes full moons are slightly closer to us and they appear larger. When the latter happens it’s a super moon.
A super blood moon simply means when the moon is slightly closer to Earth because of it’s elliptical orbit and it passes into the earth’s shadow. The last one was on January 20, 2019, and will be the only one in 2019.
The next total blood moon lunar eclipse won’t be until May 26, 2021, but it will not be visible from the United States or North America. North and South America won’t see a total lunar eclipse again until May 16, 2022. It will not, however, be a super moon at the same time. For that you’ll have to wait about 19 years.
By Richard Muller, Prof. Physics UC Berkeley, author “Physics for Future Presidents”
There never was much value in going to the Moon in the first place, so there was no good reason to return.
When J.F. Kennedy proposed we go to the moon by the end of the 1960s, his goal was to raise American spirits, to return us to a belief that we could win in a competition with the surging Soviet Union (which was not only beating us in space, but even in the Olympics!).
When Kennedy died, I think we were determined to get to the Moon in the now sacred deadline of the late 1960s, to fulfill Kennedy’s dream.
Scientists liked the Moon shot, primarily (this is my observation, not based on a careful poll) because it injected a lot of money into science in space. If the same money had been made available for science in space, but not involving human transport, then most scientists would have favored unmanned experiments, including unmanned exploration of the Moon. It made much more financial sense, but most people (especially at NASA) believed that without the human involvement, the public would not support high levels of spending.
Once we met Kennedy’s goals, of restoring the US spirit and self confidence, then the financial considerations took over. There simply is not much value added by putting men on the Moon; arguably, there is much science value lost. (Science experiments that have to be man-safe are far more expensive.) On the other hand, you’ll notice that not a lot of money has been spent on sending robots to the Moon. Some, and they’ve done some remarkable things, but not the many billions that go along with a man shot.
Instead, we have spent our resources with unmanned exploration of the solar system, with truly spectacular results. We’ve discovered that every moon of every planet appears to be different from every other moon! (That’s only a slight exaggeration.) The great glory of NASA in the last few decades has been its unmanned program. In comparison, the Space Station has accomplished very little. (Again, that is my personal evaluation.)
You don’t want me to answer this question. You are looking for a great, positive answer that will make the future look bright not only for colonies on these places, but an economic base for those colonies.
Meanwhile, I’m going to say I don’t think there’s much justification even for people walking on Mars when our robots can do it more safely and less expensively and achieve the same or better results…. what to speak of “colonies.” I think it’s almost laughable and mostly just science fiction dreaming.
People may or may not one day walk on Mars at great risk, and some will probably die in the attempt. There is little reason to go there from a scientific point of view other than to say we did, just like we walked on the moon and then went away.
In the meantime, a safer, cheaper way is send our machines to go.
You see, what this is all about is finding life. What scientists want to do is prove that life can evolve elsewhere than Earth – a so far unproven theory. We want there to be life elsewhere because we want to prove that life was not “created” on Earth alone, but life naturally develops from matter when conditions are ideal.
We don’t need “colonies” or economic bases in space to prove that. We just need to find some germs under some rocks or on some moon around some planet in our solar system. For that we just need space vehicles and robots like the Mars Rovers.
Whether we find life or not is anyone’s guess, but it is still science fiction thinking we will colonize anything off planet.
Well, in my opinion we should focus on the Moon.
As for Mars vs. Venus, both have unbreathable atmospheres. Mars is very cold, hundreds of degrees below zero cold. Venus is hot, melt stuff in a few minutes hot.
Mars doesn’t have rain or surface liquid water.
Venus also doesn’t have liquid water on the surface, but it does rain. The problem is it’s raining sulfuric acid.
Any probes we’ve tried sending to Venus have become dysfunctional within minutes.
It is already more polluted. It has so much CO2 that it is uninhabitable. The atmosphere is too thin to breath and the solar rays from the sun are deadly.
- Don’t contaminate. Leave whatever planet it happens to be in the original pristine condition so we can study it. (This is the predominant, tree hugging concept.)
- Screw number 1. Terraform the planet. Make it livable for humans, existing organisms, if they exist at all, be damned.
That being said, we do try all we can not to contaminate planets we send probes to even though some microorganisms may have made it through.
At present, and probably rightly so, NASA does not want to introduce organisms to other planets – or visa versa – introduce to Earth organisms from other planets on Earth. We may have already failed, but we still try.
If you count all the little nuts, bolts, loose wrenches and pieces of demolished satellites as satellites, then there’s a whole lot of junk floating around Earth. Thousands of pieces that pose a hazard.
Around the moon we have about three functioning spacecraft but have launched far more than that that have, over time, gone dead – perhaps crashed to the surface of the moon. Then we have the odd Juno spacecraft around Jupiter, the voyagers I and II and so on. We’ve put more space junk up there then anything else. This is a fairly accurate artist’s rendition of space junk around Earth.
The Russians have put several probes on Venus, the Americans and Europeans put a probe on Titan, we have probes on Mars, we flew a probe by Pluto and orbited Saturn for a long while before crashing deliberately. We presently have, as mentioned, the Juno spacecraft around Jupiter. We have hundreds of functioning satellites in orbit around Earth.