Astronomy and space exploration

Before you get carried away with some company claiming revolutionary new technology
remember Theranos

A bit more depth
 
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NASA's 'Green' Fuel Will Make Its Space Debut on SpaceX Falcon Heavy Mission
By Passant Rabie 19 hours ago Spaceflight

A green propellant alternative will be tested out in space for the first time.

The pressure to "go green" will soon travel outside of our horizon and into space.

NASA's Green Propellant Infusion Mission (GPIM) is currently scheduled to launch on June 24 on a SpaceX Falcon Heavy rocket as part of a technology-testing mission dubbed STP-2. GPIM, a small, box-shaped spacecraft powered by green technology, will test out a low-toxicity propellant in space for the first time, according to NASA. The clean propellant, a hydroxyl ammonium nitrate fuel/oxidizer mix called AF-M315E, will serve as an alternative to hydrazine, a highly toxic compound used in rocket fuel to power satellites and spacecraft.

"It's important that we develop technology that increases protections for launch personnel and the environment, and that has the potential to reduce costs," Steve Jurczyk, associate administrator of NASA's Space Technology Mission Directorate, said in a statement.
https://www.space.com/falcon-heavy-nasa-testing-clean-fuel-stp2.html
 
Migrating Baby Exoplanet Sculpts Disk Around Newborn Star (Photos)
By Mike Wall 10 hours ago Science & Astronomy

A newborn mini-Neptune has an artistic streak.
bc7DU5zGGYXiBFR6bEmaM8-320-80.jpg

ALMA observation of the young star system HD 169142, which shows an outer region composed of thin rings and a double gap. These fine structures had never been seen before in the outer parts of a disk with a deep chasm that severs the protoplanetary environment into inner and outer regions.
(Image: © N. Lira – ALMA (ESO/NAOJ/NRAO); S. Pérez – USACH/UChile)

A newborn exoplanet is apparently on the move.

Astronomers have spotted intricate ring structures in the outer portion of the disk of dust and gas that surrounds the young star HD 169142, which lies about 370 light-years from Earth in the constellation Sagittarius.

These rings were likely sculpted by a migrating baby planet about 10 times more massive than Earth, the researchers report in a new study.
https://www.space.com/migrating-baby-exoplanet-rings-alma-photos.html

Cool, but with these news I wonder what is the chance to find a perfectly aligned towards our point of view a black hole, a star system, etc, so that we see a perfect circle with no perspective.
 
EM drive = creating a tiny amount of thrust

Creating a tiny amount of reactionless thrust. Which is way, way more unbelievable than warping space-time. I mean, space-time is warped all the time in nature, and warping it doesn't break any physics. But reactionless thrust has never been shown anywhere, and any amount of reactionless thrust either allows you to build a perpetual motion machine, breaking basically all of modern physics, or identifies a favored reference frame, breaking all of modern physics.

Not that I believe in the space warpers either, but at least their claims are somewhat compatible with everything we know about the universe. Sadly, I think it's very likely that we will have to reach the stars the hard way.
 
All the stories about the EM drive and test descriptions indicate it is being evaluated on whether it is producing reactionless thrust. The debunkings thus far are the result of tracing thrust to measurement error or situations where there is an unaccounted for source of reaction, like outgassing of heated material or interaction of the powered wiring with the Earth's magnetic field.
 
A second one-time fast radio burst has been traced back to its galaxy
A Milky Way-like galaxy nearly 8 billion years ago birthed the brief pulse of radio waves, further deepening the mystery of these strange cosmic signals.
By Alison Klesman | Published: Tuesday, July 02, 2019


The Deep Synoptic Array-10, which spotted the burst, is located at the Owens Valley Radio Observatory.
Caltech/OVRO/Gregg Hallinan


Fast radio bursts, or FRBs, are one of astronomy’s hottest topics — and biggest mysteries. These brief bursts of radio waves from outside the Milky Way typically pop off for only a fraction of a second, then disappear forever, never to be seen again. Only two FRBs have ever been caught repeating, one of which astronomers traced back to its home galaxyin 2017. Last week, researchers reported they had, for the first time, traced a one-and-done, non-repeating FRB back to its home — the second FRB ever to be tailed to its source.
http://astronomy.com/news/2019/07/a...adio-burst-has-been-traced-back-to-its-galaxy

Fascinating...
 
Space Warp Dynamics
---Update: July 11, 2019---
Tomorrow there will be a presentation in Hastings Nebraska in the Public Library from 4-5pm. Space Warp and the future of space travel will be discussed. We have been contacted by several production companies to do TV shows on the Bermuda Triangle and its relationship with space warp (The Bruce Gernon Story). We will update as we get more information. In Model 16b we have upgraded the end connectors, increased the vertical distance for array offsets, and added field dampers. In the past, we have seen the drive stay at ambient air temperatures. After these improvements we have discovered a cooling effect on the drive of about a degree cooler than ambient air. The drive’s force output has remained consistent with our results in March. In the pictures taken, we have one example of before and after images of thermal temperatures. The temperature differences were first noticed with a digital infrared laser thermometer and verified with the thermal camera.

This was posted yesterday. If any of you live near there and want to go...
 
This is what they are all about :rolleyes:
"Bruce Gernon Story: Shortcut to Miami Beach Via Local Warp"
tumblr_osl07gpbOP1sqqq6go1_400.gif
Well, of course my approach to this stuff is sceptic, but we know that the cloth of space/time is not something as fixed as we thought. There may be distortions and other natural events that can... modify? it and there are so many things that science has yet to discover. So I just hope that within all this nonsense and crazy-sounding stuff, someday we may discover something which we can actually understand, prove and use.
 
I like to think there is some kind of trick that someone will eventually discover can be pulled on space-time/magnetic fields/conservation of energy like how you can untie some knots by tricking the rope into thinking its just separate bits on one side.
(tried to find a video eg but google-fu fail :no:)
 
Well, of course my approach to this stuff is sceptic, but we know that the cloth of space/time is not something as fixed as we thought. There may be distortions and other natural events that can... modify? it and there are so many things that science has yet to discover. So I just hope that within all this nonsense and crazy-sounding stuff, someday we may discover something which we can actually understand, prove and use.
This entire perspective completely ignores the fact that the people who are most knoweldgeable about what we do and don't know about these things typically tell us they're impossible.

Space-time doesn't warp randomly. Space-time geometry is determined by matter and energy. And the precise ways in which matter/energy warp space-time have been measured to an extreme degree of accuracy in a variety of circumstances.

To break away from this and actually produce space-time geometry that would be really useful for a warp drive, you'd need to get your hands on matter/energy that has properties unlike anything that has ever been measured or even had any theoretical reason to believe it could possibly exist.
 
This entire perspective completely ignores the fact that the people who are most knoweldgeable about what we do and don't know about these things typically tell us they're impossible.

Space-time doesn't warp randomly. Space-time geometry is determined by matter and energy. And the precise ways in which matter/energy warp space-time have been measured to an extreme degree of accuracy in a variety of circumstances.

To break away from this and actually produce space-time geometry that would be really useful for a warp drive, you'd need to get your hands on matter/energy that has properties unlike anything that has ever been measured or even had any theoretical reason to believe it could possibly exist.
Very interesting... Could you visit their page and read their paper and share your opinion with us?
 
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