It’s Way Too Late For This, But It’s Important To Note That NASA Didn’t Discover The New Earth-like

Raising the bar for antimatter exploration

CERN - European Organization for Nuclear Research logo.  March 18, 2017 The absence of antimatter in the universe is a long-standing jigsaw puzzle in physics. Many experiments have been exploring this question by finding asymmetries between particles and their antimatter counterparts. GBAR (Gravitational Behaviour of Antihydrogen at Rest), a new experiment at CERN, is preparing to explore one aspect of this puzzle – what is the effect of gravity on antimatter? While theories exist as to whether antimatter will behave like matter or not, a definitive experimental result is still missing.

Image above: Installation of the GBAR linac in its shielding bunker. The electrons accelerated to 10 MeV toward a target will produce the positrons that are necessary to form antihydrogen with the antiprotons coming from the ELENA decelerator. (Image: Max Brice/CERN). GBAR will measure the effect of gravity on antihydrogen atoms. Located in the Antiproton Decelerator (AD) hall, GBAR is the first of five experiments that will be connected to the new ELENA deceleration ring. On 1 March, the first component of the experiment was installed – a linear accelerator (linac). In sharp contrast to the LHC’s chain of big accelerators and fast particles, the AD world of antimatter is small and its particles are as slow as they come. The GBAR linac is only 1.2 metres long and it will be used to create positrons, the antimatter equivalent of electrons. The experiment will use antiprotons supplied by ELENA and positrons created by the linac to produce antihydrogen ions. They consist of one antiproton and two positrons, and their positive charge makes them significantly easier to manipulate. With the help of lasers, their velocity will be reduced to half a metre per second. This will allow them to be directed to a fixed point. Then, trapped by an electric field, one of their positrons will be removed with a laser, which will make them neutral again. The only force acting on them at this point will be gravity and they will be free to make a 20-centimetre fall, during which researchers will observe their behaviour. The results might turn out to be very exciting. As the spokesperson of GBAR, Patrice Pérez, explains: “Einstein’s Equivalence Principle states that the trajectory of a particle is independent of its composition and internal structure when it is only submitted to gravitational forces. If we find out that gravity has a different effect on antimatter, this would mean that we still have a lot to learn about the universe.” Five other experiments are based at the Antiproton Decelerator, two of which – AEGIS and ALPHA – are also studying the effect of gravity on antimatter. Note: CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works. At CERN, the world’s largest and most complex scientific instruments are used to study the basic constituents of matter — the fundamental particles. By studying what happens when these particles collide, physicists learn about the laws of Nature. The instruments used at CERN are particle accelerators and detectors. Accelerators boost beams of particles to high energies before they are made to collide with each other or with stationary targets. Detectors observe and record the results of these collisions. Founded in 1954, the CERN Laboratory sits astride the Franco–Swiss border near Geneva. It was one of Europe’s first joint ventures and now has 22 Member States. Related links: GBAR (Gravitational Behaviour of Antihydrogen at Rest): https://gbar.web.cern.ch/GBAR/public/index.html Antiproton Decelerator (AD): https://home.cern/about/accelerators/antiproton-decelerator ELENA: http://home.cern/about/updates/2016/11/new-ring-slow-down-antimatter linear accelerator (linac): http://home.cern/tags/linear-accelerator AEGIS: http://home.cern/about/experiments/aegis ALPHA: https://home.cern/about/experiments/alpha For more information about European Organization for Nuclear Research (CERN), Visit: http://home.cern/ Image (mentioned), Text, Credits: CERN/Iva Raynova. Greetings, Orbiter.ch Full article

SpaceX Dragon Spacecraft Departs Space Station

SpaceX - CRS-10 Dragon Mission patch. March 19, 2017

Image above: The SpaceX Dragon spacecraft was released from space station at 5:11 a.m. ET on March 19 after delivering more than 5,500 pounds of cargo. Image Credit: NASA TV. Expedition 50 astronauts Thomas Pesquet of ESA (European Space Agency) and Shane Kimbrough of NASA released the SpaceX Dragon cargo spacecraft from the International Space Station‘s robotic arm at 5:11 a.m. EDT.

U.S. Commercial Cargo Ship Departs the International Space Station

With the spacecraft a safe distance from the station, SpaceX flight controllers in Hawthorne, California, will command its deorbit burn around 10 a.m. The capsule will splash down at about 10:54 a.m. in the Pacific Ocean, where recovery forces will retrieve the capsule and its more than 5,400 pounds of cargo. The cargo includes science samples from human and animal research, external payloads, biology and biotechnology studies, physical science investigations and education activities. The deorbit burn and splashdown will not be broadcast on NASA TV.

Image above: Image above: The SpaceX Dragon spacecraft released (Archive image). Image Credit: NASA. NASA and the Center for the Advancement of Science in Space (CASIS), the non-profit organization that manages research aboard the U.S. national laboratory portion of the space station, will receive time-sensitive samples and begin working with researchers to process and distribute them within 48 hours of splashdown. Dragon, the only space station resupply spacecraft able to return to Earth intact, launched Feb. 19 on a SpaceX Falcon 9 rocket from historic Launch Complex 39A at NASA’s Kennedy Space Center in Florida, and arrived at the station Feb. 23 for the company’s 10th NASA-contracted commercial resupply mission. Related links: Center for the Advancement of Science in Space (CASIS): http://www.iss-casis.org/ NASA TV: https://www.nasa.gov/multimedia/nasatv/index.html SpaceX: https://www.nasa.gov/spacex Space Station Research and Technology: https://www.nasa.gov/mission_pages/station/research/index.html International Space Station (ISS): https://www.nasa.gov/mission_pages/station/main/index.html Images (mentioned), Video (NASA TV), Text, Credits: NASA/Hayley Fick. Best regards, Orbiter.ch Full article

Scientists Discover The Oldest, Largest Body Of Water In Existence–In Space

Scientists have found the biggest and oldest reservoir of water ever–so large and so old, it’s almost impossible to describe.

The water is out in space, a place we used to think of as desolate and desert dry, but it’s turning out to be pretty lush.

Researchers found a lake of water so large that it could provide each person on Earth an entire planet’s worth of water–20,000 times over. Yes, so much water out there in space that it could supply each one of us all the water on Earth–Niagara Falls, the Pacific Ocean, the polar ice caps, the puddle in the bottom of the canoe you forgot to flip over–20,000 times over.

The water is in a cloud around a huge black hole that is in the process of sucking in matter and spraying out energy (such an active black hole is called a quasar), and the waves of energy the black hole releases make water by literally knocking hydrogen and oxygen atoms together.

The official NASA news release describes the amount of water as “140 trillion times all the water in the world’s oceans,“ which isn’t particularly helpful, except if you think about it like this.

That one cloud of newly discovered space water vapor could supply 140 trillion planets that are just as wet as Earth is.

Mind you, our own galaxy, the Milky Way, has about 400 billion stars, so if every one of those stars has 10 planets, each as wet as Earth, that’s only 4 trillion planets worth of water.

The new cloud of water is enough to supply 28 galaxies with water.

Truly, that is one swampy patch of intergalactic space.

Equally stunning is the age of the water factory. The two teams of astrophysicists that found the quasar were looking out in space a distance of 12 billion light years. That means they were also looking back in time 12 billion years, to when the universe itself was just 1.6 billion years old. They were watching water being formed at the very start of the known universe, which is to say, water was one of the first substances formed, created in galactic volumes from the earliest time. Given water’s creative power to shape geology, climate and biology, that’s dramatic.

“It’s another demonstration that water is pervasive throughout the universe, even at the very earliest times,” says Matt Bradford, an astrophysicist at NASA’s Jet Propulsion Laboratory and leader of one of the teams that made the discovery. (The journal article reporting the discovery is titled, without drama, “The Water Vapor Spectrum of APM 08279+5255: X-Ray Heating and Infrared Pumping over Hundreds of Parsecs.”)

It is not as if you’d have to wear foul-weather gear if you could visit this place in space, however. The distances are as mind-bogglingly large as the amount of water being created, so the water vapor is the finest mist–300 trillion times less dense than the air in a typical room.

And it’s not as if this intergalactic water can be of any use to us here on Earth, of course, at least not in the immediate sense. Indeed, the discovery comes as a devastating drought across eastern Africa is endangering the lives of 10 million people in Somalia, Kenya, and Ethiopia. NASA’s water discovery should be a reminder that if we have the sophistication to discover galaxies full of water 12 billion light years away, we should be able to save people just an ocean away from drought-induced starvation.

The NASA announcement is also a reminder how quickly our understanding of the universe is evolving and how much capacity for surprise nature still has for us. There’s water on Mars, there’s water jetting hundreds of miles into space from Enceladus, one of Saturn’s moons, there are icebergs of water hidden in the polar craters of our own Moon. And now it turns out that a single quasar has the ability to manufacture galaxies full of water.

But it was only 40 years ago, in 1969, that scientists first confirmed that water existed anywhere besides Earth.

July 16th, 1969, 8:32 AM - Neil Armstrong, Michael Collins, and Edwin “Buzz” Aldrin Jr. lift off aboard Saturn V SA-506.

Margaret Hamilton is a computer scientist and mathematician. She was the lead software engineer for Project Apollo.  Her work prevented an abort of the Apollo 11 moon landing. She’s also credited for coining the term “software engineer." 

The Crab Nebula

via reddit

This is a Trichroic Beam Splitter.

Using this splitter a white beam of light can be separated into three colours. Red, Blue and Green.

Source

goodnight moon. goodnight Milky Way. goodnight Ursa Major (UMa I dSph). goodnight 24IC 1613 (UGC 662.350[8].

Ep. 17 Dark Sky Reserves - HD and the Void

Dark Sky Reserves exist to prevent light pollution in select areas. Learn about the reasons why these reserves are so important, and also hear about the Bortle Scale, which amateur astronomers use to quantify sky conditions when they are out obser...

Stargazing is a difficult task, especially under adverse weather conditions, but human beings have also made it much harder for ourselves with all these pesky electrical lights and such. Light pollution affects vast swathes of inhabited land, but the introduction of Dark Sky Reserves helps to improve observational conditions for amateur and professional astronomers. Today, you get to hear more about Dark Sky Reserves as well as the Bortle Scale, which is used to judge the amount of light pollution affecting stargazing within an area.

Below the cut are my sources, music credits, a vocab list, and the transcript of this episode. Suggest what you think I should research next by messaging me here, tweeting at me at @HDandtheVoid, or asking me to my face if you know me. Please subscribe on iTunes, rate it and maybe review it, and tell friends if you think they’d like to hear it!

(My thoughts on the next episode are space race history, the transit of Venus, Shen Kuo, or Walter Baade. The next episode will be up on December 18th.)

Glossary

airglow - a very faint, bluish, naturally occurring glow that hangs around the horizon on Earth, usually within about 15 degrees of the horizon line.

Bortle Scale - an objective scale to measure the clarity and effect of light pollution on a night’s stargazing. Black and grey zones are the best for stargazing, blue is for rural skies, green and yellow are the rural/suburban transition zone, orange is the suburban sky, red is bright suburbia, and white is for cities and inner cities.

deep-sky object - any cosmological object that isn’t individual stars or something from our Solar System. It’s a classification that includes nebulae, galaxies, and star clusters, and it has its roots in amateur astronomy.

ecliptic - the path of the Sun across the sky over the course of a year.

gegenschein - a faint brightening in the night sky directly opposite the Sun. Astronomers think it’s caused by the reflection of sunlight off of dust ejected by comets or resulting from asteroid destruction.

light pollution - the excessive, misdirected, or intrusive use of artificial, human-made lighting. There are several major types of light pollution:

glare - when too-bright and poorly directed lights blind people.

light trespass - when neighboring lights are so bright that their light spills over and illuminates others’ property.

overillumination - when excessive lights are used in a small area.

skyglow - the visible glow caused by light scattering and reflecting off of the droplets of atmospheric molecules.

lumen - a measurement of a light’s brightness.

magnitude - the measurement of a star’s brightness as seen from Earth. The brighter it is, the lower its magnitude value. Ex. the Sun has an apparent magnitude of -27.

Messier object - a deep-sky object included on a list of 103-110 deep-sky objects made by Charles Messier and his colleagues in the 18th century in an attempt to prevent fuzzy, bright objects from being confused with comets.

zodiacal light - a faint brightening in the night sky along the ecliptic that results from sunlight scattered forward off dust in the direction of the Sun.

Transcript

Sources

Sodium lamp light pollution reduction effects via Flagstaff Dark Skies Coalition

Types of light pollution via the British Astronomical Association’s Campaign for Dark Skies, 2009

Light pollution via Sky and Telescope, Dec 2008

The World Atlas of Artificial Night Sky Brightness via the Light Pollution Science and Technology Institute

Lumens and watts via Lowes

UNESCO World Heritage Site list

Invention of the light bulb via SPS Industrial

Lightbulb components via CIO

Walter Baade bio via the Royal Astronomy Society of Canada

International Dark-Sky Association

“An IDA International Dark Sky Reserve is a public or private land possessing an exceptional or distinguished quality of starry nights and nocturnal environment that is specifically protected for its scientific, natural, educational, cultural, heritage and/or public enjoyment. Reserves consist of a core area meeting minimum criteria for sky quality and natural darkness, and a peripheral area that supports dark sky preservation in the core. Reserves are formed through a partnership of multiple land managers who have recognized the value of the natural nighttime environment through regulations and long-term planning.”

“The core area must provide an exceptional dark sky resource, relative to the communities and cities that surround it, where the night sky brightness is routinely equal to or darker than 20 magnitudes per square arc second.”

John Bortle’s article on his magnitude scale via Sky and Telescope, July 2006

“I have created a nine-level scale. It is based on nearly 50 years of observing experience. I hope it will prove both enlightening and useful to observers — though it may stun or even horrify some! Should it come into wide use, it would provide a consistent standard for comparing observations with light pollution.”

John E. Bortle receives the Leslie C. Peltier Award in 2013 via the Astronomical Society

Bortle dark sky scale via Big Sky Astronomy Club

Bortle dark sky scale via LSU

Gegenschein via Sky and Telescope, Oct 2015

Messier List via Fred Espenak’s website, Astropixels

Caldwell List via Students for the Exploration and Development of Space (SEDS)

Intro Music: ‘Better Times Will Come’ by No Luck Club off their album Prosperity

Filler Music: ‘New Son/Burnt Iron’ by Trampled by Turtles off their album Palomino

Outro Music: ‘Fields of Russia’ by Mutefish off their album On Draught

Ep. 8 Planets - HD and the Void

Eight planets in the solar system or nine? I go into depth with nine because I grew up with Pluto. The first five planets are visible to the naked eye but how did we find Uranus, Neptune, and Pluto? What are we doing to still learn about our close...

Earth is a super special world. It has life on it, and getting conditions just right so that life will survive is an incredibly difficult task. Other planets and other moons in our solar system may look like they could have life on them, but it just didn’t happen.

Life on other planets is for a different episode, though. In this one, I’m talking about what we can see on our close neighbors, the eight (maybe seven?) planets in our solar system. Learn how they were discovered, what naming conventions we use for them and their moons, how to differentiate between them, and what probes we’ve sent out to learn more about them. Also enjoy snippets from the lovely orchestral suite written for each planet by Gustav Holst! It’s the longest episode so far but I promise it’s worth it.

There’s a timeline below the cut in addition to the other resources because hooboy did I mention a lot of people. I may also put together a timeline of probes... But that’s for another podcast. Maybe the next podcast! Let me know what you think I should research by messaging me here, tweeting at me at @HDandtheVoid, or asking me to my face if you know me in real life. And please check out the podcast on iTunes, rate it or review it if you’d like, subscribe, and maybe tell your friends about it if you think they’d like to listen! Also below the cut are my sources, music credits, vocab list, and the transcript. I mention a book, a play, a poem, and a few works of art, and I quote an astronomy book in this episode so if you want to see that written down, those sources are there as well.

(My thoughts for the next episode were spectroscopy, auroras, or probes through the ages. Let me know by the 21st and I’ll have the next podcast up by July 31!)

Glossary:

auroras - a light display that occurs when a magnetosphere is sufficiently disturbed by solar wind that charged particles scatter into the upper atmosphere and lose their energy.

magnetosphere - an invisible barrier that surrounds a celestial objet. It is often generated by the movement of the liquid metal core of the object. Around a planet, it deflects high-energy, charged particles called cosmic rays that can either come from the Sun or, less often, from interstellar space.

prograde - when a planet spins from east to west.

retrograde - when a planet spins from west to east.

sol - a unit of time measuring one Martian day, or 24 Earth-hours and 40 Earth-minutes. The immediately previous Martian day is called yestersol.

transit of Mercury/Venus - when a planet passes in front of the Sun.

Script/Transcript

Timeline of people mentioned

Nicolaus Copernicus, Polish (1473-1543)

Tycho Brahe, Danish (1541-1601)

Galileo Galilei, Italian (1564-1642)

Johannes Kepler, German (1571-1630)

Simon Marius, German (1573-1625)

Pierre Gassendi, French (1592-1655)

Giovanni Cassini (also known as Jean-Dominique Cassini), Italian/French (1625-1712)

Christiaan Huygens, Dutch (1629-1695)

William Herschel, German/English (1738-1822)

Johann Elert Bode, German (1747-1826)

Caroline Herschel, German/English (1750-1848)

Johann Franz Encke, German (1791-1865)

John Herschel, English (1792-1871)

William Lassell, English (1799-1880)

Urbain Le Verrier, French (1811-1877)

Johann Galle, German (1812-1910)

John Couch Adams, English (1819-1892)

Edouard Roche, French (1820-1883)

Heinrich Louis d’Arrest, German (1822-1875)

Asaph Hall III, American (1829-1907)

James Clark Maxwell, Scottish (1831-1879)

Giovanni Schiaparelli, Italian (1835-1910)

Percival Lowell, American (1855-1916)

Eugène Antoniadi (also known as Eugenios Antoniadis), Greek (1870-1944)

Gerard Kuiper, Dutch/American (1905-1973)

Clyde Tombaugh (1906-1997)

Sources:

Who discovered each planet via Cornell University

The mathematical discovery of Neptune and Pluto via University of St. Andrews, where my mom’s boyfriend’s son graduated last year! Mad props, Henry!

Holst’s The Planets via the Utah Symphony

More on Holst’s suite, including music files

Chronology of solar system discovery

MESSENGER information via John Hopkins University Applied Physics Laboratory

Auroras via NASA’s Themis mission

Magnetospheres via NASA, which has a tumblr! You should follow it! Good stuff.

Curiosity rover via NASA

‘Canali on Mars’ debacle via NASA

Mariner 9 via NASA

Origin of ‘yestersol’ and Martian day-length via A Way With Words

Richard Bram: “Superlatives are inadequate; words fail. Look. Think. Be in awe.”

Images of Mars through the years via The Telegraph

Mars-One mission to colonize Mars

Names of all the planet’s moons and their significance in mythology, last updated in 2013 and questionably reliable but from what I know of mythology—and I do know more than most—it’s not too far off.

Table of moons of various planets

Jupiter via NASA

Jupiter moon name facts via NASA

The Galilean Moons of Jupiter via University of Colorado at Boulder

Saturn’s moons via Phys.org

Cassini mission website

Saturn overview via NASA

Saturn’s moon Titan via NASA

Ethane via PubChem

Methane via EPA

Neptune’s moons via Space.com

What is Pluto via NASA

Pluto Overview via NASA

“Dwarf planets may provide the best evidence about the origins of our solar system.”

New Horizons mission via NASA

Pluto and our designations for planets are mentioned very briefly in this Oatmeal comic. I liked it.

Sobel, Dava. The Planets. Viking: NY, 2005.

“But tides raised by the Sun in the planet’s molten middle gradually damped Mercury’s rotation down to its present slow gait” (34).

“Light and heat always hit Mercury dead on, while the north and south poles, which receive no direct sunlight, remain relatively frigid at all times” (35).

“Venusian clouds comprise large and small droplets of real vitriol—sulfuric acid along with caustic compounds of chlorine and fluorine. They precipitate a constant acid rain, called virga, that evaporates in Venus’ hot, arid air before it has a chance to strike the ground” (61).

“…Neptune, where the voices of a female choir, sequestered in a room offstage, are made to fade out at the finale (with no sacrifice in pitch) by the slow, silent closing of a door” (165).

Holst: “Saturn brings not only physical decay but also a vision of fulfillment” (165).

“They occupy a nearby region of perpetual fragmentation known as the Roche zone, named for the nineteenth-century French astronomer Edouard Roche, who formulated the safe distances for planetary satellites” (172).

“It's near twin, Neptune, reveals a more complex beauty in subtle stripes and spots of royal to navy blue, azure, turquoise, and aquamarine” (200).

“This outlying population offered Pluto a new identity—if not the last planet, then the first citizen of a distant teeming shore” (214).

Van Gogh, Vincent. Starry Night (June 1889). 

—. Road with Cypress and Star (May 1890). 

—. White House at Night (June 1890). 

Shakespeare, William. A Midsummer Night’s Dream (1605).

Pope, Alexander. “The Rape of the Lock” (1712). (It’s a mock-epic satiric poem about stealing a lock of hair, not physical rape)

Duane, Diane. Wizards at War. Harcourt Trade Publishers: San Diego CA, 2005.

Intro Music: ‘Better Times Will Come’ by No Luck Club off their album Prosperity

Filler Music: The Planets (1918) by Gustav Holst, performed by the London Symphony Orchestra in 2003.

Outro Music: ‘Fields of Russia’ by Mutefish off their album On Draught