These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Monday, December 31, 2018
But It Isn't Halloween!
Today's Astronomy Picture of the Day shows a spooky sight, The Witch Head Nebula, in the constellation of Orion. Possibly more appropriate for Halloween than New Year's Eve, maybe this witch can tell us our galactic future?
Sunday, December 30, 2018
Galaxy Tree
Today's Astronomy Picture of the Day shows a confluence of composition and randomness; a tree's growth and pruning, the evolution of the galaxy, and some patience. "Mouseover" the image for a guide. It kind of puts me in mind of Freeman Dyson's galactic trees.
Saturday, December 29, 2018
Ultima Thule
Today's Astronomy Picture of the Day is an artist depiction of New Horizons 2015 at it's second flyby destination, 2014 MU69, or, as it has been designated, Ultima Thule. What will we see in just a few short days?
Friday, December 28, 2018
Barred Spiral
Today's Astronomy Picture of the Day brings us NGC 1365, a barred spiral galaxy (a galaxy that shows a prominent bar across the arms and bulge) in the constellation of Fornax. What role does the bar play in the evolution and life of a galaxy?
Ultima Thule
In just a few short days, we'll be visiting a Kuiper Belt Object, nicknamed Ultima Thule.
This is courtesy of a extension to the mission for New Horizons 2015, the vehicle that brought us our first clear view of Pluto and Charon. Stay tuned to see what new wonders will be unveiled!
Afterwards? That depends on fuel, funding and power. And possible targets. Our vehicles have often proven more robust than we expect, so we night eventually see something even more "ultima"!
Thursday, December 27, 2018
Southern Jewels
Today's Astronomy Picture of the Day brings us NGC 3372, The Great Carina Nebula, in the southern hemisphere constellation of Carina. This vast star factory is also home to Eta Carina, a supernova in the making (from our perspective; it's possible Eta Carina has already gone "boom" and we haven't seen the event yet!).
Wednesday, December 26, 2018
Clawed Nursery
Today's Astronomy Picture of the Day shows the Lobster Nebula, in the constellation of the Scorpion. This complex of interacting gas, light, gravity and magnetic fields is the birthplace of massive stars.
Tuesday, December 25, 2018
Grand Spiral
Today's Astronomy Picture of the Day is an image courtesy of the Hubble Space Telescope, Messier 100, a grand spiral galaxy in the constellation of Coma Berenices.
It's A Wonderful Life
At the opening of the classic film It's A Wonderful Life, we're treated to some talking astronomical objects. Did you know that they are known as Stephen's Quintet, a cluster of "interacting" (colliding) galaxies in the constellation of Pegasus?
Monday, December 24, 2018
Fifty Years On (02)
Today's Astronomy Picture of the Day is a "remastered" image from the first crewed orbital mission to visit our Moon. Apollo 8, fifty years ago. Why haven't we been back?
Sunday, December 23, 2018
Fifty Years On (01)
Today's Astronomy Picture of the Day is a "video reconstruction" of the famous Earthrise seen by the crew of Apollo 8, the first humans to circle our Moon, fifty years ago. When are we going back?
Saturday, December 22, 2018
Winter Radiant
Today's Astronomy Picture of the Day shows winter skies over the Czech Republic. Geminid meteors streak away from their central radiant.
Friday, December 21, 2018
Halo Complex
Today's Astronomy Picture of the Day shows a complex interplay of solar halos over the skies of Sweden.
Thursday, December 20, 2018
The Red Green Blue Show
Today's Astronomy Picture of the Day shows Comet 46P/Wirtanen as it cruises through the rich star and nebula fields of Taurus, the Pleiades and the California Nebula. Chesley Bonestell would be thrilled!
Wednesday, December 19, 2018
Sky Streak
Today's Astronomy Picture of the Day shows the trail of a Geminid meteor as it burns up in our atmosphere. Different elements in the bit of asteroidal grit show up in this image as different colors. Gone in a flash, the trail of the doomed visitor can already be seen spreading out in our atmosphere.
Tuesday, December 18, 2018
Bubbles
Today's Astronomy Picture of the Day shows frozen bubbles of methane trapped in the ice of Lake Baikal in Russia. Astoundingly, the lake contains 20% of the world's fresh water.
Monday, December 17, 2018
Mirror Image
Today's Astronomy Picture of the Day brings us Messier 31, the Andromeda Galaxy. What does the Milky Way, our home galaxy look like? Many think it looks a lot like M31.
Sunday, December 16, 2018
Green Visitor
Today's Astronomy Picture of the Day brings wispy clouds and a cometary visitor over the skies of Denmark.
Saturday, December 15, 2018
Meteors and More
Today's Astronomy Picture of the Day is a time exposure capturing the Geminids, along with the Orion Nebula, various stars and one cometary interloper.
Friday, December 14, 2018
Our Cosmic Porpoise
Today's Astronomy Picture of the Day seems to show a cosmic dolphin or porpoise in the clouds of Jupiter, courtesy of the Juno Orbiter. Infinite monkeys and infinite typewriters, or, in this case, infinite paintbrushes.
Thursday, December 13, 2018
Asteroid Anaglyph
Today's Astronomy Picture of the Day is a red/blue anaglyph of Asteroid 101955 Bennu as imaged by the OSIRIS-REx vehicle. Stay tuned as we explore more and more of this piece of the primordial solar system and even attempt to get a sample
Wednesday, December 12, 2018
Falling Falling
Today's Astronomy Picture of the Day shows the Orion Molecular Cloud Complex, focusing on Messier 43 in the constellation of Orion. It's a cold wind that blows from Orion.
Tuesday, December 11, 2018
Galactic Metamorphosis
Today's Astronomy Picture of the Day brings us number 188 in Halton Arp's Atlas of Peculiar Galaxies, known also as the Tadpole Galaxy in the constellation of Draco. A tadpole will change into a frog or toad. What does a galaxy that has undergone...interaction...become? Still a galaxy, but it can visually be very different!
Monday, December 10, 2018
Sound and Vision
Today's Astronomy Picture of the Day brings us to the surface of Mars. We have a view of Elysium Planitia and the deck of the InSight lander, showing the SEIS instrument (and is protective cover). The instrument has already detected vibrations, courtesy of the winds of Mars.
Sunday, December 9, 2018
Activity Over Norway
Today's Astronomy Picture of the Day shows the skies of Norway. Auroral activity and infalling meteors over the quiet snowy landscape.
Saturday, December 8, 2018
Tiny Planet
Today's Astronomy Picture of the Day is a spherical image timelapse video of a "tiny planet" view from Grandes Pines Observatory in North Carolina.
Friday, December 7, 2018
The Approach of the Cometeers
Today's Astronomy Picture of the Day shows Comet 46P Wirtanen over the skies of Spain. The comet is (today) close to the Seven Sisters or the Pleiades in the constellation of Taurus. (Naturally that means I have cloudy skies!). If you have a good dark sky, get out there and take a look!
Why the title of this post?
Thursday, December 6, 2018
Galactic Boooooommmm
Today's Astronomy Picture of the Day shows a nice astronomical view of several galaxies, noteably NGC 1055 in the top of the field and Messier 77 along the bottom right (and several stars of varying color scattered around and at least one galaxy in the distance). The unchanging sky has changed, however. Messier 77 has brightened as a star in one of its arms has gone supernova!
Wednesday, December 5, 2018
Return to the Alliance-Union
After too long a time, C.J. Cherryh is returning to the series that got me started reading her stuff: the Alliance-Union series that includes novels such as Downbelow Station (cover pictured above), Merchanter's Luck, Cyteen and so much more! The new title is Alliance Rising and has the promising sub-title of The Hinder Stars I.
Rosie’s Pub was Alpha-based spacer turf. It was where you went on the Strip to spend time, to talk with shipmates, friends, and other ships’ crew who were regulars at Alpha Station.
And like other bars on the Strip, Rosie’s maintained, half-lost in the glassware and the bottles of liquor on the shelves above the bar, a schedule board—a list of ships coming in, ships leaving, ships currently in dock. Widescreen, three separate displays: interstation FTL'ers, maintenance insystemers, and on the far left, the sub-lighters, those two remaining links to Sol Station and Earth, one ship coming, one going, on their ten-year-long voyages—Sol being the only star outside the jump range of the faster-than-light ships: ironic proof, some said, that there was a god.
That part of the screen rarely changed: two ships, two destinations, no surprises there. The other two sections, with FTL'ers listed in the center and insystemers on the right, ebbed and flowed with the tides of commerce—shifting but generally predictable.
Until three hours ago, when the words in arrival had flashed above the listing of FTL ships and assigned berths.
In arrival. With no name or origin, just an ominous blank where both ought to appear.
Three hours and counting, and still no update.
Nobody remembered that happening. Ever. FTL ships dropped in at system zenith and sent ID before the first vane pulse, so ID arrived nearly simultaneously with the entry wavefront. In arrival always, always, came with a ship name attached. Period. That information kept honest folk from flashing on Beta Station...and the ghosts of stationers who had just disappeared, back at the dawn of all the star-stations, when the sub-lighter Santa Maria had come into Beta Station, at Proxima Centauri, and found..nothing. No remains, no explanation, no clue.
No one visited Proxima, ever, after that. Alpha Station, at Barnard’s Star, the first station outside Sol system itself, developed daughter stations in the opposite direction, and thrived.
Until FTL changed everything.
I forget exactly where I first came across Cherryh, but it was pretty early on. I still remember the excitement of reading Downbelow Station. Shortly thereafter, Mayfair Games came out with a boardgame based on the book and the author was invited to be a guest at Origins (back when it was a traveling show). I remember meeting her when I was volunteering at either the Game Designers' Workshop or the Steve Jackson Games booth, walking around and looking bemused at another wacky fandom.
As time went by, I read other books in the series (and other books by the author, but these remained my first love). There was the time that I had saved up a couple of the Chanur books and read them while sitting on hard plastic chairs in a uncomfortable waiting room to fulfill my obligation to serve on a jury (I never was called, so I got a lot of reading done that week). There was the time, relatively early on in the commercial internet, when I found a C.J. Cherryh mailing list. That led to a lot of discussion, timelines, and even some wonderful stellar software (sadly withered and abandoned) that allowed you to see the positions of the stars in the books, the possible jump routes and the like.
May this book be the first of many more!
What's Up for the Winter?
Today's Astronomy Picture of the Day shows us what you can see (for the northern hemisphere) in the night sky this winter. Get out and take a look!
Tuesday, December 4, 2018
Up and Away
Today's Astronomy Picture of the Day shows the exhaust trail of a Long March 3B Carrier Rocket as it lifted navigation satellites into orbit.
Monday, December 3, 2018
Ansible! Ansible!
Man, it's been too long since I've dipped into and posted a few nuggets from Dave Langford's Ansible!
Kids These Days: "ARTHUR C. CLARKE featured in the 27 November Jeopardy quiz: 'This
Space Odyssey author: 'I predict that a new species could well appear
on Earth—what I call Robosapiens.' No one could supply his name. [AIP]"
Ring of Confidence Dept. 'Val's face was more confident now that
he had sphincter control.' (T.G. Bass, Half Past Human, 1971)
Kids These Days: "ARTHUR C. CLARKE featured in the 27 November Jeopardy quiz: 'This
Space Odyssey author: 'I predict that a new species could well appear
on Earth—what I call Robosapiens.' No one could supply his name. [AIP]"
Ring of Confidence Dept. 'Val's face was more confident now that
he had sphincter control.' (T.G. Bass, Half Past Human, 1971)
Death Spirals
Today's Astronomy Picture of the Day is a short video from a computer model showing the interaction of a pair of black holes. Stay tuned for a related posting tomorrow@
Sunday, December 2, 2018
Eagle
Today's Astronomy Picture of the Day is a Hubble Space Telescope image of The Eagle Nebula (Messier 16). Take a good look, the nebula is evaporating!
Saturday, December 1, 2018
Sky Grooves
Today's Astronomy Picture of the Day shows star trails over the skies of Mount Everest. Groovy, man!
Friday, November 30, 2018
Dual Hunters
Today's Astronomy Picture of the Day combines a long exposure to show Orion in the sky and in a river. Look at all that light pollution along the horizon! Those people will never see what you're seeing in this image.
Thursday, November 29, 2018
The Southern Crown
Today's Astronomy Picture of the Day shows Corona Australis, a rich complex of stars, gas and dust and even (by accident of alignment) a globular cluster. Imagine that as a view from your front porch on a new planet!
Wednesday, November 28, 2018
Warthog Wednesday
Happy Warthog Wednesday, everyone. How can anything so ugly be so beautiful (to a ex-armor crewman)?
Situational Awareness
"All right, they’re on our left, they’re on our right, they’re in front of us, they’re behind us...they can’t get away this time” —Lewis B. “Chesty” Puller.
That reminds me, I have a book to read.
Set the Controls
Today's Astronomy Picture of the Day takes us into the depths of the heart of the Soul Nebula, IC 1871, found in the constellation of Cassiopeia. Cold gas and dust coming together, hot young stars flying apart.
Tuesday, November 27, 2018
First Image
Today's Astronomy Picture of the Day shows the first image transmitted by NASA's InSight lander from the surface of Mars. The lander (based on the design used in the polar-exploring Mars Phoenix mission and Mars Polar Lander) will emplace instruments on the surface and beneath the surface to get a better picture of what the interior of Mars is like.
Monday, November 26, 2018
Launch to Orbit
Today's Astronomy Picture of the Day is a short video showing the launch of a cargo vehicle from the Baikonur Cosmodrome as seen from the International Space Station. Where have I seen that before?
Sunday, November 25, 2018
The Falling Potato
Today's Astronomy Picture of the Day is an image of Phobos, one of the two moons of Mars, courtesy of the Viking 1 Orbiter. Take a good look, Phobos will not always be with us.
Saturday, November 24, 2018
Setting on the Wreckage
Today's Astronomy Picture of the Day shows a setting Moon, as well a brilliant Venus in the skies of Namibia's Skeleton Coast.
Friday, November 23, 2018
Infalling Star
Today's Astronomy Picture of the Day shows a Leonid meteor over the skies of the Black Forest. "Mouseover" the image in the link for a constellation guide.
On this morning's walk with our dog, I observed a meteor, the International Space Station and Venus. You can see some amazing things with even just the "naked" eye!
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