By Guest Nicole
Although the space shuttle program may have been temporarily halted in the United States, NASA is still alive and well — and now, thanks to 18-year-old Rifath Sharook of India, are launching their smallest-ever satellite into space. The satellite is called 'KalamSat,' named after Indian nuclear scientist, pioneer in the aeronautics field, and former president, Dr. APJ Abdul Kalam, and is the first-ever to be manufactured by 3-D printing, a tech trend we don't see disappearing (or even going away a bit) anytime soon. NASA is planning on launching it off of Wallops Island, Virginia, on June 21, according to the Business Standard.
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By Bible Speaks
Space the Frontier Beyond Our Imagination!
What of the Future?
The Hubble telescope promises greater revelations for the immediate future. One astronomer wrote: “With the Hubble Space Telescope, we’ll see the shapes of many galaxies around the vicinity of quasars [quasi-stellar radio sources, the most luminous objects in the universe].” As to understanding the origin of galaxies, Richard Ellis of the University of Cambridge, England, says: “We’re about to enter a very exciting time.”
Human curiosity will continue to spur the search for knowledge of the universe, its beginnings, and its purpose. Such knowledge should awaken in our hearts reverence for the Creator of the vast universe, Jehovah God, who said: “Raise your eyes high up and see. Who has created these things? It is the One who is bringing forth the army of them even by number, all of whom he calls even by name. Due to the abundance of dynamic energy, he also being vigorous in power, not one of them is missing.”—Isaiah 40:26; Psalm 147:4.
Let me attempt to blow your mind: “Now” travels at the speed of light.
When the light turns green, I don't concern myself with the fact that the light actually turned green a nanosecond earlier than I saw it. As far as the distances we're used to, “now” might just as well be universal.
On interstellar distances, you might expect that the lag start mattering. Except it really doesn't. Maybe Sirius isn't there anymore. Maybe it went supernova five years ago, and the shockwave is riding towards us as you read, and it will hit us in another three years. There's no way we'd know. We look up and see the old faithful Sirius sitting right where it's always been. And we can measure its gravitational influence on us and neighboring stars. There is no knowing it's actually gone, and that's because it actually isn't. To someone in the neighborhood of Sirius, the star is no more, but, to us, it still exist. “Existence” travels at the speed of light.
If the sun was spirited away by a species of prankster kardashev 3 aliens, it would keep “being there” for 8 minutes as far as we'd be concerned.
And those 10 billion light years away stars we see through our telescopes, they are there. Because we can see them.
- Julien Boyer
via .ORGWorld News
Chinese scientists aim to launch more quantum satellites to build hack-proof global quantum global communications networkBy TheWorldNewsOrg
via TheWorldNewsOrgWorld News
By Ann O'Maly
Artwork: Gaia is making the definitive map of our Milky Way Galaxy
Europe’s Gaia space telescope has been used to clock the expansion rate of the Universe and - once again - it has produced some head-scratching.
The reason? The speed is faster than what one would expect from measurements of the cosmos shortly after the Big Bang.
Some other telescopes have found this same problem, too.
But Gaia’s contribution is particularly significant because the precision of its observations is unprecedented.
“It certainly ups the ante,” says Adam Riess from the Space Telescope Science Institute (STScI) and the Johns Hopkins University, both in Baltimore, Maryland, US.
The inability to lock down a value for the expansion rate has far-reaching consequences - not least in how we gauge the cosmic timescale.
If the Gaia speedometer is correct, it would mean having to reduce the estimated 13.88-billion-year age of the Universe by perhaps a few hundred million years.
Read more: http://www.bbc.co.uk/news/science-environment-37438458
Why don't they generate artificial gravity in ISS by rotating the ship on its axis, to generate centrifugal force equivalent to gravity?By TheWorldNewsOrg
The rotating ship is simply Hollywood's answer to "Why aren't the actors floating around if they they are in space?"
There are several reasons why the ISS does not.
First, if you have gravity in a space ship, you are going to need floors that can support the weight of the crew walking around. You would also need carts to push stuff around in. Not only that, but now you only have walls and a ceiling to put all the other equipment. Without gravity, you can attach anything to any surface. and nothing needs to support the weight.
Second, centrifugal force is not gravity so there are totally different rules in a spinning ship. Anything that is spinning needs an axis. And the closer you are to the axis, the less "gravity" and more dizzy you will feel. Gravity has fields, centrifugal force does not. So anything not moving along with the rest of the ship will appear to be flying down the hallway. Anyone who has been on "The Gravitron" at the county fair when someone threw up knows what I'm talking about.
Basically a spaceship would have to be a perfectly balanced doughnut with one hallway down the outermost point. It would have to be a doughnut because the space in the middle would be pretty useless anyway. It would have a lot of wasted space and extra weight. If everyone gathered together in one place, it would disrupt the balance and change the simulated "weight of different things in other areas of the ship unless it was so massive, that the ship itself made up of 95% of the total weight.
It's a fun idea, but a spinning ship is just too dangerous and not practical. It would have to be more on the scale of a space city.
Another fun thought that also helps demonstrate the basic science behind the concept.... If the doughnut ship was fairly "small" (I don't know the exact math to figure out the ideal size) and well balanced you would be able to run down the hall in the opposite direction the ship was spinning and then just "fly" the rest of the way to the mass hall. Because once you are running at the same surface speed as the rotation of the floor beneath you, then you are not really moving anymore, and the ship is just spinning around you. You can just hover there, and try to grab the right doorknob as it goes by.
Phil McClellan, Life student
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