Official space thread vol.....Astronaut status

sckid20 said:
Stephen hawking believes we SHOULDNT contact aliens because it would be dangerous

http://www.ibtimes.com/why-aliens-s...ng-warns-intelligent-extraterrestrial-2420526

Interesting
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 no ****. our species still resolves our political and lifestyle differences through officially sanctioned widespread killings.

even if they didn't want to kill, eat or enslave us, how in the **** would we even begin to navigate communications with an alien race with a different language (most humans can't even talk to most other humans), vastly different cultures (see the end of "Mars Attacks" for how cultural differences can go sideways real quick), and likely superior technology (given that they interpreted and responded to the communications of an alien race). 

I mean we have RACISM...not even animals of different colors discriminate against each other, as far as we know. can you imagine a supremacist breed of dog? 
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for the first time ever, we wouldn't be the undisputed galactic intelligence champions...I don't think we're prepared to deal with that scenario.

by and large, humans are "those ************* you can't take nodamnwhere" as of now.

sad but true.
 
[h2]There is liquid water in the rest of the solar system that is 50 times Earth's volume of water on 8-17 moons and asteroids [/h2]
[h3]  [/h3][h3]OCTOBER 01, 2016[/h3]

As of December 2015, the confirmed liquid water in the Solar System outside Earth is 25-50 times the volume of Earth's water (1.3 billion cubic kilometers).

The locations of subsurface oceans are on Europa, Enceladus, Ganymede, Titan, the asteroid Ceres, Callisto, Dione and Pluto.

There also could be subsurface oceans at Rhea, Titania, Oberon, Triton, Orcus, MakeMake, Eris, 2007 OR10, and Sedna.

There is also a lot of water ice on Mars.

At 1122 km (697 mi) in diameter, Dione is the 15th largest moon in the Solar System, and is more massive than all known moons smaller than itself combined. About two thirds of Dione's mass is water ice, and the remaining is a dense core, probably silicate rock 

Callisto is the second-largest moon of Jupiter, after Ganymede. It is the third-largest moon in the Solar System and the largest object in the Solar System, Callisto may have a small silicate core and possibly a subsurface ocean of liquid water at depths greater than 100 km.

Rhea is the second-largest moon of Saturn and the ninth-largest moon in the Solar System. Models suggest that Rhea could be capable of sustaining an internal liquid-water ocean through heating by radioactive decay.

Titania is the largest and most massive Uranian moon, and the eighth most massive moon in the Solar System.Its density of 1.71 g/cm³, which is much higher than the typical density of Saturn's satellites, indicates that it consists of roughly equal proportions of water ice and dense non-ice components;the latter could be made of rock and carbonaceous material including heavy organic compounds. The presence of water ice is supported by infrared spectroscopic observations made in 2001–2005, which have revealed crystalline water ice on the surface of the moon.

Titania may be differentiated into a rocky core surrounded by an icy mantle.[24] If this is the case, the radius of the core 520 kilometres (320 mi) is about 66% of the radius of the moon, and its mass is around 58% of the moon’s mass—the proportions are dictated by moon's composition. The pressure in the center of Titania is about 0.58 GPa (5.8 kbar). The current state of the icy mantle is unclear. If the ice contains enough ammonia or other antifreeze, Titania may have a subsurface ocean at the core–mantle boundary. The thickness of this ocean, if it exists, is up to 50 kilometres (31 mi) and its temperature is around 190 K. However the present internal structure of Titania depends heavily on its thermal history, which is poorly known.

Oberon is the second largest and most massive of the Uranian moons after Titania, and the ninth most massive moon in the Solar System. Oberon's density of 1.63 g/cm³, which is higher than the typical density of Saturn's satellites, indicates that it consists of roughly equal proportions of water ice and a dense non-ice component.

Oberon may possess a liquid ocean layer at the core–mantle boundary. The thickness of this ocean, if it exists, is up to 40 km and its temperature is around 180 K. However, the internal structure of Oberon depends heavily on its thermal history, which is poorly known at present.

http://www.nextbigfuture.com/2016/10/there-is-liquid-water-in-rest-of-solar.html
 
Looks like a lot of ice to me, which can still be used for fuel (splitting the hydrogen and oxygen)
 
Our universe could be inside a black hole

https://www.insidescience.org/news/every-black-hole-contains-new-universe

It would also mean that our origin black hole came from a mindbogglingly larger universe than ours. I mean, think about it, our entire universe would have constituted of nothing more than a large star in their universe, that eventually turned into a black hole. And all the black holes in our universe would spawn smaller universes, which would in turn spawn even smaller universes. And the denizens of these universes would perceive their universe to be just as massive as ours.

At this point, I am forced to conclude that all of existence is infinitely small and infinitely large and that there are no true limits in any conceivable direction or measurement in all of existence.
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The more scientists learn  about "Tabby's Star," the more mysterious the bizarre object gets.

Newly analyzed observations by NASA's planet-hunting Kepler space telescope show  that the star KIC 8462852 — whose occasional, dramatic dips in brightness still have astronomers scratching their heads  — has also dimmed overall during the last few years.

"The steady brightness change in KIC 8462852 is pretty astounding," study lead authorBen Montet, of the California Institute of Technology in Pasadena, said in a statement. 

"Our highly accurate measurements over four years demonstrate that the star really is getting fainter with time," Montet added. "It is unprecedented for this type of star to slowly fade for years, and we don't see anything else like it in the Kepler data."

KIC 8462852 hit the headlines last September, when a team of astronomers led by Tabetha Boyajian of Yale University  announced that the star had dimmed dramatically several times over the past few years — in one case, by a whopping 22 percent.

These brightness dips are too significant to be caused by an orbiting planet, so scientists began suggesting alternative explanations. Perhaps a planet or a family of orbiting comets broke up, for example, and the ensuing cloud of dust and fragments periodically blocks the star's light. Or maybe some unknown object in the depths of space between the star and Earth is causing the dimming.

The brightness dips are even consistent with a gigantic energy-collecting structure built by an intelligent civilization — though researchers have been keen to stress that this "alien megastructure" scenario is quite unlikely.

he weirdness increased in January 2016, when astronomer Bradley Schaefer of Louisiana State University  reported that KIC 8462852 also seems to have dimmed overall  by 14 percent between 1890 and 1989.

This conclusion is based on Schaefer's analysis of photographic plates of the night sky that managed to capture Tabby's Star, which lies about 1,500 light-years from Earth. Some other astronomers questioned this interpretation, however, suggesting that differences in the instruments used to photograph the sky over that time span may be responsible for the apparent long-term dimming.

So Montet and co-author Joshua Simon, of the Observatories of the Carnegie Institution of Washington, decided to scour the Kepler data  for any hint of the trend Schaefer spotted. And they found more than just a hint.

Kepler observed KIC 8462852, along with about 150,000 other stars, from 2009 through 2013. During the first three years of that time span, KIC 8462852 got nearly 1 percent dimmer, Montet and Simon found. The star's brightness dropped by a surprising 2 percent over the next six months, and stayed level for the final six months of the observation period. (Kepler has since moved on to a new mission called K2, during which the telescope is hunting for exoplanets on a more limited basis and performing a variety of other observations.)

"This star was already completely unique because of its sporadic dimming episodes," Simon said in the same statement. "But now we see that it has other features  that are just as strange, both slowly dimming for almost three years and then suddenly getting fainter much more rapidly."

Montet and Simon said they don't know what's behind the weird behavior of Tabby's Star, but they hope their results, which have been accepted for publication in The Astrophysical Journal, help crack the case eventually.

"It's a big challenge to come up with a good explanation for a star doing three different things that have never been seen before," Montet said. "But these observations will provide an important clue to solving the mystery  of KIC 8462852."

http://www.space.com/34303-alien-megastructure-star-strange-dimming-mystery.html
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Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area about 2.6 arcminutes on a side, about one 24-millionth of the whole sky, which is equivalent in angular size to a tennis ball at a distance of 100 metres.[1] The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.[2][3]

The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe,
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Imagine everything going on out there

View media item 2219956
Much better high rez pic

https://upload.wikimedia.org/wikipedia/commons/0/0d/Hubble_ultra_deep_field_high_rez_edit1.jpg

Video
 
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Anybody own nice telescope? I am definitely buying a new one this spring. I love astronomy :pimp: :pimp:
 
CAPE CANAVERAL:  Astronomers have found a nearby solar system with seven Earth-sized planets, three of which circle their parent star at the right distance for liquid surface water, raising the prospect of life, research published on Wednesday showed. The star, known as TRAPPIST-1, is a small, dim celestial body in the constellation Aquarius. It is located about 40 light years away from Earth.
 Researchers said the proximity of the system, combined with the proportionally large size of its planets compared to the small star, make it a good target for follow-up studies. They hope to scan the planets' atmospheres for possible chemical fingerprints of life.

"I think that we've made a crucial step towards finding if there is life out there," University of Cambridge astronomer Amaury Triaud told reporters on a conference call on Tuesday.
New record! We've found 7 Earth-sized planets in the habitable zone around a single star outside our solar system: https://t.co/GgBy5QOTpKpic.twitter.com/pPzEcKhTqL
- NASA (@NASA) February 22, 2017
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The discovery, published in this week's issue of the journal Nature, builds on previous research showing three planets circling TRAPPIST-1. They are among more than 3,500 planets discovered beyond the solar system, or exoplanets.

Researchers have focussed on finding Earth-sized rocky planets with the right temperatures so that water, if any exists, would be liquid, a condition believed to be necessary for life.
The diameter of TRAPPIST-1 is about 8 percent of the sun's size. That makes its Earth-sized planets appear large as they parade past.

From the vantage point of telescopes on Earth, the planets' motions regularly block out bits of the star's light. Scientists determined the system's architecture by studying these dips.

"The data is really clear and unambiguous," Triaud wrote in an email to Reuters.

Because TRAPPIST-1 is so small and cool, its so-called "habitable zone" is very close to the star. Three planets are properly positioned for liquid water, said lead researcher Michael Gillon, with the University of Liege in Belgium.

"They form a very compact system," Gillon said on a conference call. "They could have some liquid water and maybe life."

Even if the planets do not have life now, it could evolve. TRAPPIST-1 is at least 500 million years old, but has an estimated lifespan of 10 trillion years. The sun, by comparison, is about halfway through its estimated 10-billion-year life.

In a few billion years, when the sun has run out of fuel and the solar system has ceased to exist, TRAPPIST-1 will still be an infant star, astronomer Ignas Snellen, with the Netherlands' Leiden Observatory, wrote in a related essay in Nature.

"It burns hydrogen so slowly that it will live for another 10 trillion years," he wrote, "which is arguably enough time for life to evolve."
 
http://www.ndtv.com/world-news/nasa-has-found-a-new-solar-system-with-7-earth-size-planets-1662472
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This thread makes me want to play Mass Effect again.

Even if the planets do not have life now, it could evolve. TRAPPIST-1 is at least 500 million years old, but has an estimated lifespan of 10 trillion years. The sun, by comparison, is about halfway through its estimated 10-billion-year life.

In a few billion years, when the sun has run out of fuel and the solar system has ceased to exist, TRAPPIST-1 will still be an infant star, astronomer Ignas Snellen, with the Netherlands' Leiden Observatory, wrote in a related essay in Nature.

"It burns hydrogen so slowly that it will live for another 10 trillion years," he wrote, "which is arguably enough time for life to evolve."
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Could we be the Aliens?
 
yaknow...while we're stuck down here poring over earthbound ******** like war and politics and who can say which words without dental insurance, it's easy to forget that we're just floating around in a limitless universe populated by infinite mysteries and untold beauty.

don't.
[h1]  [/h1]
[h1]NASA’s Juno Spacecraft beams back the sharpest images of Jupiter—EVER[/h1]
Jupiter-5.jpg


Jupiter-7.jpg


Jupiter-8.jpg


Jupiter-9.jpg


Jupiter-11.jpg


http://ewao.com/2017/05/03/nasas-juno-spacecraft-beams-back-the-sharpest-images-of-jupiter-ever/
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not resizing ****, you're welcome.
 
 
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they are beautiful, enjoy them.

print them out and hang them on your wall in high def renderings.

have them made into laptop covers.

it's the space thread, man.
 
Interesting


Distant galaxy has "radio burst signals"
In 2007, astronomers Duncan Lorimer and David Narkovic discovered a strange phenomenon: A millisecond-long massive burst of energy from a single point in the galaxy, covering dozens of frequencies. It’s called a fast radio burst. or FRB. Since 2007, we’ve uncovered dozens of them. But the most recent burst to hit galactic airwaves is different: It’s an FRB that repeats.

Researchers at the University of California, Berkeley, observed that FRB 121102, that is, a burst first observed November 2nd, 2012, has been repeating again, with more pulses than ever. That’s unusual in of itself; FRBs tend to pop once, and that’s it, at least in the ten years we’ve been hunting them. FRB 121102 emanates from a dwarf galaxy roughly 3 billion light years from Earth. Fifteen new pulses, this close together, is fascinating for a number of reasons. One, it rules out a “one-time event” (i.e. something blowing up or otherwise destroying itself) as the cause of the FRB. Two, whatever happened has happened across a span of years; remember, these radio waves have to travel across space to be picked up by our telescope. And three, whatever happened, happened consistently. For all our love of the idea of a clockwork universe, it’s difficult to come up with phenomena that have this pattern.



B11351566.201383576;sz=1x1;ord=37334817;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=

There’s a caveat here; three billion light years away means that whatever happened in that galaxy was going on when single-celled organisms were starting to evolve on Earth. Granted, the universe is estimated tobe 13 billion years old, give or take a few million, so an alien species could have gotten a big head start on us. It could also be an unusual astronomical phenomenon, like a neutron star with a powerful magnetic field called a magnetar, that we haven’t pinpointed yet, or that burned out long ago. But something strange happened, an unimaginable distance away, and no matter what the answer, it’s guaranteed to be fascinating.
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"Before this week, the closest humans came to seeing a black hole was the music video for Soundgarden’s “Black Hole Sun.” That’s no longer the case, thanks to an international team of researchers from the Event Horizon Telescope project. The first-ever image of a black hole, from the galaxy Messier 87, was released on Wednesday — it shows a “bright ring formed as light bends in the intense gravity around a black hole that is 6.5 billion times more massive than the Sun,” according to the EHT’s official Twitter account.

“We have seen what we thought was unseeable,” said Sheperd Doeleman, director of the Event Horizon Telescope Collaboration. “We have seen and taken a picture of a black hole.” The significance of the image, which was taken in 2017 approximately 55 million light years from Earth, can’t be overstated:

The volume of data generated was unprecedented – in one night the EHT generated as much data as the Large Hadron Collider does in a year. This meant waiting for months for the South Pole data, which could only be shipped out at the end of Antarctic winter. The observations are giving scientists new insights into the weird environment close to black holes, where gravity is so fierce that reality as we know it is distorted beyond recognition.

The real-world significance of the image is for astronomists to parse through, though. (It took eight telescopes on five continents to take a photo of a black hole that is 6 billion times bigger than the Sun, which is too much for me to comprehend.) Everyone else is making the same (apt) joke about what it looks like: the Eye of Sauron from Lord of the Rings.
 
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