Zwicky Transient Facility sees first light

Astronomers announced today that the Zwicky Transient Facility at the Palomar Observatory in California has seen first light, and will begin full operations in 2018.

When fully operational in 2018, the ZTF will scan almost the entire northern sky every night. Based at the Palomar Observatory in southern California and operated by Caltech, the ZTF’s goal is to use these nightly images to identify “transient” objects that vary between observations — identifying events ranging from supernovae millions of light years away to near-Earth asteroids.
an image of stars and the night sky

In 2016, the UW Department of Astronomy formally joined the ZTF team and will help develop new methods to identify the most “interesting” of the millions of changes in the sky — including new objects — that the ZTF will detect each night and alert scientists. That way, these high-priority transient objects can be followed up in detail by larger telescopes, including the UW’s share of the Apache Point Observatory 3.5-meter telescope.

By producing new high resolution images of the entire northern sky every night, this telescope instrument is going to discover gobs of new transients, from supernovae to binaries to novae to things we haven’t even seen before.

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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

The print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

Exploring one of Mars’ giant volcanoes

Master index

For the past two weeks JPL’s image site has been releasing a string of images taken by Mars Odyssey of the smallest of Mars’ four giant volcanoes.

Pavonis Mons is one of the three aligned Tharsis Volcanoes. The four Tharsis volcanoes are Ascreaus Mons, Pavonis Mons, Arsia Mons, and Olympus Mars. All four are shield type volcanoes. Shield volcanoes are formed by lava flows originating near or at the summit, building up layers upon layers of lava. The Hawaiian islands on Earth are shield volcanoes. The three aligned volcanoes are located along a topographic rise in the Tharsis region. Along this trend there are increased tectonic features and additional lava flows. Pavonis Mons is the smallest of the four volcanoes, rising 14km above the mean Mars surface level with a width of 375km. It has a complex summit caldera, with the smallest caldera deeper than the larger caldera. Like most shield volcanoes the surface has a low profile. In the case of Pavonis Mons the average slope is only 4 degrees.

The image on the right is the context image, annotated by me to show where all these images were taken. The images can accessed individually below.

Each of these images has some interesting geological features, such as collapses, lava tubes, faults, and flow features. Meanwhile, the central calderas are remarkable smooth, with only a few craters indicating their relatively young age.

The most fascinating geological fact gleaned from these images is that they reveal a larger geological trend that runs through all of the three aligned giant volcanoes to the east of Olympus Mons.

The linear and sinuous features mark the locations of lava tubes and graben that occur on both sides of the volcano along a regional trend that passes thru Pavonis Mons, Ascreaus Mons (to the north), and Arsia Mons (to the south).

This trend probably also indicates the fundamental geology that caused all three volcanoes to align as they have.

Arsia Mons is of particular interest in that water clouds form periodically above its western slope, where there is also evidence of past glaciation. Scientists strongly suspect that there is a lot of water ice trapped underground here, possibly inside the many lava tubes that meander down its slopes. These facts also suggest that this might be one of the first places humans go to live, when they finally go to live on Mars.

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Japan to make second launch attempt of world’s smallest orbital rocket

JAXA, Japan’s space agency, has announced that it will make a second launch attempt in December of what would be the world’s smallest orbital rocket.

The rocket, measuring 10 meters long and 50 cm in diameter, will carry a “micro-mini” satellite weighing about 3 kg developed by the University of Tokyo to collect imagery of the Earth’s surface.

The launch scheduled for Dec. 25 will feature the fifth rocket in the SS-520 series. The Japan Aerospace Exploration Agency (JAXA) is hoping small rockets made with commercially available components at low cost will help fuel the growing global demand for micro-mini satellites. JAXA used components found in home electronics and smartphones for the rocket, which is about the size of a utility pole.

The previous launch failed when vibrations during liftoff caused a short-circuit that cut off communications, forcing them to terminate the flight.

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Conscious Choice cover

Now available in hardback and paperback as well as ebook!

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

Billionaire Yuri Milner considering funding mission to Enceladus

Capitalism in space: Billionaire Yuri Milner, who already funds several astronomy projects aimed at interstellar travel, is now considering funding a planetary probe to the Saturn moon Enceladus.

At the moment all he is doing is holding workshops with scientists and engineers to see if such a mission can be done for an amount he can afford. Considering that Elon Musk’s first concept to send a private probe to Mars, before SpaceX existed, was stopped because of high launch costs, thus becoming the inspiration for SpaceX itself in order to lower those costs, Milner’s private effort might actually be affordable now.

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Sacrificing Scientific Skepticism

Phil Berardelli, who periodically comments here and who is a veteran science journalist who worked for the journal Science for a number of years, has written a very cogent four part essay on the subject of climate change for the think tank Capital Research Center.

Berardelli very carefully outlines the uncertainties that dominate our knowledge of the Earth’s climate, while explaining clearly why consensus is never what good science relies upon. As he notes,

Science is not primarily about proof; science is about disproof. Nothing in science, absolutely nothing, should ever be taken at face value. This view isn’t new; it’s age old.

Read it all, especially if you are one of the people who reads my writing and questions my skepticism about much of what I see in the climate field, especially coming from NASA and NOAA. Berardelli illustrates how doubt and skepticism are the hallmarks of science, and should always be honored, not denigrated with slurs like “denier.”

Full disclosure: Phil Berardelli was also my editor when I did a weekly column for UPI called Space Watch for six months in 2005.

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Next Dragon launch for NASA may fly using reused first stage

Capitalism in space: NASA revealed today that it is close to approving the use of a Falcon 9 reused first stage for the next Dragon cargo mission to ISS.

During a press conference at NASA’s Wallops Flight Facility here Nov. 10 about the launch of a Cygnus cargo mission to the ISS, a NASA manager said the agency would likely approve the use of a reused booster on that mission, designated SpX-13, assuming it clears an upcoming review. “We’re in the final stages of doing all those assessments,” Dan Hartman, ISS deputy program manager, said. SpaceX first requested to use a previously-flown booster for a cargo mission about a year ago. “On the NASA side, we’ve had a lot of major reviews.”

He said SpaceX itself had one more readiness review for the booster they’re planning to refly before deciding if they can use it for the SpX-13 mission, scheduled for launch Dec. 4. “If that comes back positive,” he said, “I’d say the chances are that we’ll be flying a reuse on SpX-13.”

It appears that about a year from now the use of reused boosters will have become completely normalized, with no one thinking anything unusual about their use. This, after almost a half century of old-school engineers and managers repeatedly saying such a thing made no sense and was impossible in terms of engineering and economics.

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Dream Chaser test vehicle flies again!

Capitalism in space: Sierra Nevada’s Dream Chaser test vehicle today completed its second glide test, the first since 2013, successfully gliding to a perfect landing after being dropped from a helicopter at an altitude of 10,000 feet.

Unlike the 2013 glide test, the landing gear worked perfectly. With two such tests under their belt, the company I think has demonstrated that the spacecraft will be able to execute a landing. Next comes the building and test flight of the actual spacecraft.

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Saudi Arabia has launched a military strike against Yemen

Saudi Arabia has launched a military strike against Yemen’s defense ministry.

It wasn’t immediately clear if the attacks were air or missile strikes, but they came following reports that Iran had manufactured the ballistic missile fired by Yemen’s Shiite rebels toward the Saudi capital a week ago.

Remnants of the missile bore “Iranian markings,” the top US Air Force official in the Mideast said Friday, backing the kingdom’s earlier allegations.

This isn’t that much of a surprise, considering the recent purge in Saudi Arabia as well as the recent reports of both Saudi Arabia and Kuwait warning their citizens to leave Lebanon. The military strike today in Yemen appears to therefore merely be a precursor of a more significant escalation.

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A storm on Jupiter

A storm of Jupiter

Cool image time! The image above, reduced in resolution to post here, was taken during Juno’s ninth close fly-by of Jupiter in late October, and shows one particular storm swirl in the gas giant’s southern hemisphere.

The Juno team today highlighted an image taken during this fly-by of Jupiter’s entire southern hemisphere, but I find this close-up more interesting. Be sure to check out the full resolution version. It appears to me that the white swirls have risen up above the gold and blue regions, casting shadows down upon them.

Unfortunately, I cannot tell you the scale of this storm, as the release does not give any details, including where in the full hemisphere image it is located. I suspect, however, that it is large enough to likely cover the Earth.

Both the full hemisphere image and the image above were processed by citizen scientists Gerald Eichstädt and Seán Doran.

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Physicists shrink their next big accelerator

Because of high costs and a refocus in research goals, physicists have reduced the size of their proposed next big particle accelerator, which they hope will be built in Japan.

On 7 November, the International Committee for Future Accelerators (ICFA), which oversees work on the ILC, endorsed halving the machine’s planned energy from 500 to 250 gigaelectronvolts (GeV), and shortening its proposed 33.5-kilometre-long tunnel by as much as 13 kilometres. The scaled-down version would have to forego some of its planned research such as studies of the ‘top’ flavour of quark, which is produced only at higher energies.

Instead, the collider would focus on studying the particle that endows all others with mass — the Higgs boson, which was detected in 2012 by the Large Hadron Collider (LHC) at CERN, Europe’s particle-physics lab near Geneva, Switzerland.

Part of the reason for these changes is that the Large Hadron Collider has not discovered any new particles, other than the Higgs Boson. The cost to discover any remaining theorized particles was judged as simply too high. Better to focus on studying the Higgs Boson itself.

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