Astronomy and Space

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Re: Astronomy and Space

#176

Post by Tiredretiredlawyer » Thu Mar 07, 2019 11:43 am

Cross posting to ART.
https://www.nasa.gov/centers/armstrong/ ... ction.html
NASA Captures First Air-to-Air Images of Supersonic Shockwave Interaction in Flight

In order to capture these images, the King Air, flying a pattern around 30,000 feet, had to arrive in a precise position as the pair of T-38s passed at supersonic speeds approximately 2,000 feet below. Meanwhile, the cameras, able to record for a total of three seconds, had to begin recording at the exact moment the supersonic T-38s came into frame.

“The biggest challenge was trying to get the timing correct to make sure we could get these images,” said Heather Maliska, AirBOS sub-project manager. “I’m absolutely happy with how the team was able to pull this off. Our operations team has done this type of maneuver before. They know how to get the maneuver lined up, and our NASA pilots and the Air Force pilots did a great job being where they needed to be.”

“They were rock stars.”

The data from the AirBOS flights will continue to undergo analysis, helping NASA refine the techniques for these tests to improve data further, with future flights potentially taking place at higher altitudes. These efforts will help advance knowledge of the characteristics of shockwaves as NASA progresses toward quiet supersonic research flights with the X-59, and closer toward a major milestone in aviation.
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Re: Astronomy and Space

#177

Post by RTH10260 » Thu Mar 07, 2019 6:02 pm

Our solar system
Pinning down the object’s orbit could reveal it to be a crucial clue in the search for undiscovered planets—or just another frozen space rock

By Nola Taylor Redd on March 7, 2019

New "FarFarOut" World Is the Most Distant Solar System Object Known

An artist's rendition of a hypothetical undiscovered planet far beyond Pluto. The newfound object “FarFarOut” is the most distant known body orbiting the sun, and could eventually help uncover additional new worlds in the solar system's outer reaches. Credit: Caltech/R. Hurt (IPAC)

There is a new record holder for “most distant known object orbiting the sun”—an icy world nicknamed FarFarOut. The finding is preliminary, but researchers are now performing follow-up observations to nail down this object’s exact distance and the details of its orbit. Like so many of its far-flung siblings in the sun’s dark hinterlands, eventually FarFarOut could provide astronomers with vital new insights about our solar system’s outer frontier.

For the last six years, astronomers Scott Sheppard, of the Carnegie Institution for Science and Chad Trujillo, of Northern Arizona University, have been probing the heavens in the deepest all-sky survey ever performed for solar system bodies. They are on the hunt for Planet X, a small dwarf planet far beyond Pluto whose existence they proposed in 2014. So far, that search has yielded 62 distant objects, which make up about 80 percent of all those known beyond 60 astronomical units (AU). (One AU is equal to the Earth–sun distance, and Pluto’s average distance is just shy of 40 AU.) Just last year, the pair made headlines with not one but two major discoveries—the dwarf planet 2015 TG387, nicknamed the Goblin, and 2018 VG18, nicknamed FarOut. The pair’s dominance in the race to find ever-more distant denizens of the solar system is largely due to their dedication—they spend lots of time at telescopes, making observations at least every other month.


https://www.scientificamerican.com/arti ... ect-known/

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Re: Astronomy and Space

#178

Post by RTH10260 » Fri Mar 08, 2019 11:52 pm

SpaceX's Crew Dragon Success Heralds 'New Era' in Spaceflight
By Mike Wall 9 hours ago Spaceflight

A recovery ship hauls SpaceX's first Crew Dragon capsule out of the Atlantic Ocean after the spacecraft's splashdown on March 8, 2019.A recovery ship hauls SpaceX's first Crew Dragon capsule out of the Atlantic Ocean after the spacecraft's splashdown on March 8, 2019.(Image: © NASA TV)

The spaceflight landscape just changed.

SpaceX's Crew Dragon capsule aced its first mission to the International Space Station (ISS), wrapping up the six-day flight this morning (March 8) with a splashdown in the Atlantic Ocean.

Aside from an instrument-laden dummy named Ripley, Crew Dragon didn't carry any passengers on the flight, which is known as Demo-1. But the success of the shakeout cruise suggests that this huge milestone isn't far off.

"It is quite a privilege to be here for these historic days," Canadian Space Agency astronaut David Saint-Jacques said Wednesday (March 6) from the station in a video conversation about Demo-1 with U.S. Vice President Mike Pence and NASA Administrator Jim Bridenstine.

"This is really the opening of a new era," added Saint-Jacques, who was joined in the orbit-to-ground call by NASA astronaut Anne McClain.

Private astronaut taxis

To appreciate the new era, we first must take brief stock of the old one.


https://www.space.com/spacex-crew-drago ... t-era.html

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Re: Astronomy and Space

#179

Post by RTH10260 » Wed Mar 20, 2019 10:00 am

Huffing and puffing and...
NASA's Surprise Discovery on Bennu Just Changed What We Know About Asteroids
MICHELLE STARR 20 MAR 2019

A shock discovery is in from Bennu. The NASA spacecraft analysing the asteroid has observed it shooting out plumes of dust that surround it in a dusty haze - a phenomenon we've never seen in an asteroid before.

In the months that OSIRIS-REx has been studying Bennu, the spacecraft has observed this ejecta no fewer than 11 times. Since we've never seen such a thing, it suggests our understanding of asteroids may be pretty poor.

"The discovery of plumes is one of the biggest surprises of my scientific career," said principal investigator Dante Lauretta of the University of Arizona.

OSIRIS-REx has been making observations of Bennu since December last year, when it parked itself in orbit around the asteroid. Its aim is to study the rock to learn about the early Solar System, since it's thought Bennu formed at that time.

And, ambitiously, the craft is going to be taking a sample from the asteroid with a robotic arm, with intention to bring it back to Earth.


https://www.sciencealert.com/quelle-sho ... into-space

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Re: Astronomy and Space

#180

Post by Tiredretiredlawyer » Wed Mar 20, 2019 10:53 am

Bennu farts.
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Re: Astronomy and Space

#181

Post by Volkonski » Tue Mar 26, 2019 1:31 pm

AFP news agency

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#BREAKING US wants astronauts back on the Moon in five years, says Pence
Going to cost a lot. :?
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Re: Astronomy and Space

#182

Post by Estiveo » Tue Mar 26, 2019 2:08 pm

SPACEFORCE!!!1!!
Image Image Image Image Image

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Re: Astronomy and Space

#183

Post by PaulG » Tue Mar 26, 2019 2:22 pm

How long before NASA scrubs a launch and Trump overrides that in a tweet? I suppose we are going with SpaceX instead.

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Re: Astronomy and Space

#184

Post by RTH10260 » Tue Mar 26, 2019 6:52 pm

the next equality law suit to be files in 3... 2... 1...
Nasa cancels all-female spacewalk, citing lack of spacesuit in right size
Space agency blames shortage of outerwear after first-of-its-kind mission falls through

Matthew Cantor and agencies
Tue 26 Mar 2019 11.57 GMT First published on Tue 26 Mar 2019 00.45 GMT

Nasa’s plans for the first all-female spacewalk have fallen through – at least in part because the agency doesn’t have enough spacesuits that fit the astronauts.

What should have been a giant leap for womankind has turned into a stumble after Nasa said on Monday night that they will only have access to one correctly sized spacesuit top by Friday when the walk was scheduled. One of the two women on the mission, Anne McClain, will now have to give up her place to a male colleague.

She thought a large-sized suit would be fine but after a spacewalk last week found that the medium-sized was a better fit and would be the most appropriate suit to wear to venture back outside the International Space Station.


https://www.theguardian.com/science/201 ... spacesuits

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Re: Astronomy and Space

#185

Post by RTH10260 » Sun Apr 07, 2019 8:20 am

Pioneering Israeli Lunar Lander Arrives in Orbit Around the Moon
By Mike Wall

Up next is a historic touchdown attempt on April 11.

Israel just became the seventh nation to orbit the moon.

After slowly spiraling away from Earth for the past six weeks, an Israeli spacecraft known as Beresheet slipped into orbit around the moon today (April 4).

This was a historic achievement for the little robot, but it paves the way for something truly epic: a lunar touchdown attempt a week from now. If Beresheet succeeds on April 11, it will become the first Israeli craft, and the first privately funded vehicle, ever to land softly on the surface of the moon.

"The lunar capture is an historic event in and of itself — but it also joins Israel in a seven-nation club that has entered the moon’s orbit," Morris Kahn said in a statement. "A week from today, we'll make more history by landing on the moon, joining three superpowers who have done so. Today I am proud to be an Israeli."

Kahn chairs SpaceIL, the nonprofit organization that runs Beresheet's mission along with Israel Aerospace Industries, the nation's largest aerospace and defense contractor.


https://www.space.com/israeli-moon-land ... ccess.html

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Re: Astronomy and Space

#186

Post by RTH10260 » Wed Apr 10, 2019 3:59 pm

At Last, a Black Hole’s Image Revealed
The Event Horizon Telescope captures one of the universe’s most mysterious objects

By Lee Billings on April 10, 2019

Scientists have obtained the first-ever image of a black hole — at center of the galaxy M87. Credit: Event Horizon Telescope collaboration et al.
At six simultaneous press conferences around the globe, astronomers on Wednesday announced they had accomplished the seemingly impossible: taking a picture of a black hole, a cosmic monster so voracious that light itself cannot escape its clutches.

This historic feat, performed by the Event Horizon Telescope (EHT)—a planet-spanning network of radio observatories—required more than a decade of effort. The project’s name refers to a black hole’s most defining characteristic, an “event horizon” set by the object’s mass and spin beyond which no infalling material, including light, can ever return.

“We have taken the first picture of a black hole,” the EHT project’s director, Sheperd Doeleman, said in a news release. “This is an extraordinary scientific feat accomplished by a team of more than 200 researchers.”

The image unveils the shadowy face of a 6.5-billion-solar-mass supermassive black hole at the core of Messier 87 (M87), a large galaxy some 55 million light-years from Earth in the Virgo galaxy cluster. Such objects are a reflection of Einstein’s theory of general relativity, which predicts that only so much material can be squeezed into any given volume before the overwhelming force of its accumulated gravity causes a collapse—a warp in the fabric of spacetime that swallows itself. Left behind is an almost featureless nothingness that, for lack of better terms, scientists simply call a black hole.


https://www.scientificamerican.com/arti ... -revealed/

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Re: Astronomy and Space

#187

Post by Jcolvin2 » Wed Apr 10, 2019 5:44 pm


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Re: Astronomy and Space

#188

Post by Volkonski » Thu Apr 11, 2019 3:42 pm

Leah Crane

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The #Beresheet spacecraft has not landed successfully. It has crashed into the moon. Heartbreaking.
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Re: Astronomy and Space

#189

Post by Estiveo » Thu Apr 11, 2019 5:45 pm

Screenshot_20190411_144130.jpg
https://www.space.com/israeli-beresheet ... fails.html

Laura Loomer & Jacob Wohl declare the Moon to be antisemitic and controlled by sharia law in 5...4...3...2...
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Re: Astronomy and Space

#190

Post by RTH10260 » Fri Apr 12, 2019 8:10 pm

SpaceX's Falcon Heavy rocket launches first paid mission and lands all three boosters

By Jackie Wattles, CNN Business
Updated 1126 GMT (1926 HKT) April 12, 2019

New York (CNN Business)SpaceX's Falcon Heavy rocket, the most powerful vehicle flying today, just launched its first-ever mission for a paying customer. It was also the first time SpaceX managed to land all three rocket boosters after launch.

The rocket took off Thursday from Kennedy Space Center in Florida just after 6 pm ET. It delivered a pricey communications satellite into orbit for Saudi Arabia-based firm Arabsat.

For the first time ever, all three Falcon Heavy rocket boosters returned to Earth after launch: The two side-boosters landed simultaneously on ground pads in Florida, while the center core landed on a remote-controlled platform in the ocean a short time later.


https://edition.cnn.com/2019/04/11/tech ... index.html
:thumbs:

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Re: Astronomy and Space

#191

Post by RTH10260 » Fri Apr 12, 2019 8:19 pm


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Re: Astronomy and Space

#192

Post by Volkonski » Sat Apr 13, 2019 12:16 pm

The world's largest plane just flew for the first time

https://www.cnn.com/2019/04/13/business ... index.html
Stratolaunch Systems, the company founded in 2011 by the late Microsoft co-founder Paul Allen, conducted the first test flight of the world's largest plane.

Basically, Stratolaunch aircraft is a giant flying launch pad, designed to hurtle satellites into low Earth orbit. It aims to offer the military, private companies and even NASA itself a more economical way to get into space.

"Whatever the payload, whatever the orbit, getting your satellite into space will soon be as easy as booking an airline flight," said CEO Jean Floyd in 2018.

The aircraft's wingspan measures 385 feet -- wider than any airplane on the planet. From tip to tail, it's 238 feet long. It weighs half a million pounds. It's so big, it has two cockpits, one in each fuselage (but only one is used to fly the plane.)
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Image“If everyone fought for their own convictions there would be no war.”
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Re: Astronomy and Space

#193

Post by Tiredretiredlawyer » Sat Apr 13, 2019 12:54 pm

Why two cockpits?
“A black woman can invent something for the benefit of humankind.” -Bessie Blount-Griffin, physical therapist, inventor of devices for disabled WWII veterans, and forensic scientist.

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Re: Astronomy and Space

#194

Post by Volkonski » Sat Apr 13, 2019 1:14 pm

Tiredretiredlawyer wrote:
Sat Apr 13, 2019 12:54 pm
Why two cockpits?
One cockpit is being installed in the right fuselage, with minor modifications, while the other is being used as a flight simulator.
http://www.thespacereview.com/article/3012/1
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Re: Astronomy and Space

#195

Post by Tiredretiredlawyer » Sat Apr 13, 2019 1:35 pm

:bighug:
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Re: Astronomy and Space

#196

Post by RTH10260 » Sat Apr 13, 2019 11:48 pm


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Re: Astronomy and Space

#197

Post by RTH10260 » Sat Apr 13, 2019 11:59 pm

View on runway

Liveleak

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Re: Astronomy and Space

#198

Post by RTH10260 » Tue Apr 16, 2019 9:13 am

after the succesful landing...
SpaceX loses the center core of its Falcon Heavy rocket due to choppy seas
It landed on its drone ship, but the ocean was too rough to keep it there
By Loren Grush@lorengrush Apr 15, 2019, 4:59pm EDT

SpaceX successfully landed the center core of its Falcon Heavy rocket on a drone ship last week, but the vehicle accidentally fell into the ocean while in transit to the Florida coast. The company blamed the loss on choppy seas.

“Over the weekend, due to rough sea conditions, SpaceX’s recovery team was unable to secure the center core booster for its return trip to Port Canaveral,” SpaceX said in a statement to The Verge. “As conditions worsened with eight to ten foot swells, the booster began to shift and ultimately was unable to remain upright. While we had hoped to bring the booster back intact, the safety of our team always takes precedence. We do not expect future missions to be impacted.”


https://www.theverge.com/2019/4/15/1831 ... ough-ocean

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Re: Astronomy and Space

#199

Post by RTH10260 » Wed Apr 24, 2019 8:50 pm

Setback for SpaceX
Here’s what we know, and what we don’t, about the Crew Dragon accident
The company undoubtedly had a busy Easter weekend.
ERIC BERGER - 4/22/2019, 3:53 PM

During a series of engine tests of SpaceX's Dragon spacecraft this past Saturday, the vehicle experienced what the company has characterized as an "anomaly." Based upon an unauthorized leaked video of the accident, the company was counting down toward a firing of the Dragon's SuperDraco thrusters when the vehicle exploded. SpaceX has not validated the video, but it is consistent with verbal accounts of the failure that have been shared with Ars.

FURTHER READING
SpaceX’s Crew Dragon spacecraft had an anomaly during tests Saturday
After the accident, large dramatic clouds of orange smoke billowed above "Landing Zone 1," where SpaceX conducted Saturday's engine tests. According to one source, the orange plumes were the result of between one and two tons of nitrogen tetroxide—the oxidizer used by Dragon's SuperDraco engines—burning at the location. After a dramatic weekend, what follows is a summary of what we know, what we don't know, and where SpaceX goes from here.

What was destroyed?

The Crew Dragon capsule in question is the same one that successfully flew a demonstration mission to the International Space Station in March. The spacecraft was being prepared for a launch abort test this summer. During this test, the Dragon would have launched from Florida on a Falcon 9 booster and then fired its powerful SuperDraco engines to show that the Dragon could pull itself safely away from the rocket in case of a problem with the booster before or during flight.

Now that SpaceX has lost this capsule, it must find a substitute for this launch abort test. It is not clear whether it will fabricate a boilerplate vehicle with a SuperDraco system of eight thrusters, or re-purpose one of the Dragons it has built for crewed flights to the space station. Either way, this is a significant materiel loss for the company.


https://arstechnica.com/science/2019/04 ... -accident/

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Re: Astronomy and Space

#200

Post by RTH10260 » Wed May 01, 2019 8:19 pm

The end is near - once again - yes, you read it loud and clear: Friday 13th!
This Asteroid Will Come Incredibly Close to Earth on Friday the 13th, 2029
By Meghan Bartels, Senior Writer, Space.com | May 1, 2019 03:59pm ET

The near Earth asteroid Apophis, shown in yellow, will pass by Earth in 2029 within the distance that some satellites (shown in blue) orbit Earth. The purple line represents the International Space Station's orbit.

COLLEGE PARK, Md. — The solar system has a sense of humor: A decade from now, on Friday, April 13, 2029, a large asteroid will streak across the sky — but it's a cause for excitement, not fear, scientists say.

That asteroid, called Apophis, stretches about 1,100 feet (340 meters) across and will pass within 19,000 miles (31,000 kilometers) of Earth's surface. That might sound scary, but scientists are positive that it will not hit Earth. Instead, it's a once-in-a-lifetime chance for scientists to truly understand asteroids near Earth.

"The excitement is that an object this large comes this close about once per thousand years, so it's all about, What's the opportunity?" Richard Binzel, a planetary scientist at MIT, said yesterday (April 30) during the International Academy of Aeronautics' Planetary Defense Conference, which is being held here this week. The asteroid's proximity and size will also add to the encounter's brightness, so Apophis will capture eyeballs — about 2 billion people should be able to see it pass by with their naked eyes, he said.

https://www.livescience.com/65378-aster ... -13th.html

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