Stepping into Space

I’ve created a second list of recommended books at shepherd.com, a book discovery site where authors recommend favorite books based on a particular topic. Space is a topic near and dear to my heart. We’ve put many satellites in orbit. Humans work in orbit. We’ve been to the moon for just a few short years at the end of the 1960s and beginning of the 1970s and we’ve sent robotic probes to planets in the solar system. So, I often find myself asking, what is the next big step into space and these books address different aspects of that question.

You can find the list at: https://shepherd.com/best-books/humans-taking-the-next-big-step-into-space

As a kid, I watched the later moon landings, the Skylab missions, and Apollo-Soyuz even as I discovered shows like Star Trek on television. Voyager flew by Jupiter and Saturn as the Star Wars movies were being released. In my mind, space exploration and science fiction go hand-in-hand. That said, as I’ve progressed in my career as both a scientist and a science fiction writer, it’s become clear that science fiction often makes exploring space look easy. It looks like visiting Mars is as easy as walking next door. In fact, space is very dangerous and even the distances to our closest neighbor planets are vast. We don’t even have technology that would guarantee a robot probe’s safe arrival at the nearest star, much less a human-occupied spacecraft. We have a lot of ideas and people have been working on those ideas, but that’s very different than just being able to pack your bags and go.

Though four of these books delve into the technical challenges of space travel, the set as a whole is less about those challenges and more about why humans are drawn outward toward the stars and what they might learn about themselves there. “It’s not about the destination, it’s about the journey,” is a familiar saying and, in a sense, all of these books address that. I know people who express concerns about exploring space before we fix the problems of our home planet. I sympathize with that because, so far, Earth is the only planet we know we can live on. However, I’ve also believed we as a species can fix the problems we face on Earth while also striving toward the stars. Doing one doesn’t preclude the other.

I also know people who are concerned about humans destroying other worlds and civilizations with our colonial ambitions and corporate greed. Again, this is a legitimate concern and the books on my list don’t tend to shy away from those issues. They also acknowledge there’s a lot of space to traverse and many technical challenges to overcome before we get to that point. Hopefully, as we make those steps, we can learn to do better. It’s also distinctly possible that if we meet another space-faring race, they’ll easily have the upper hand because they’ve been out there longer than us. Hopefully they’ll be wiser than us as well!

Do you have a favorite book about next steps in exploring space? Let me know in the comments. Meanwhile you can learn more about my book about humans taking a next big step into the solar system at: http://davidleesummers.com/solar_sea.html

Revisiting Contact

When I visited the VLA a little over a week ago with my wife and daughter, I couldn’t help but note they had copies of both the novel Contact by Carl Sagan and the Robert Zemeckis film based on the novel on prominent display in the gift shop. This is perhaps not surprising given that a large portion of the novel is set at the VLA and a large portion of the movie was filmed there as well. My wife and I decided to pick up a copy of the movie on DVD to replace our aging VHS copy.

It’s been years since I watched the film, even longer since I read the novel, but it was fun to go back and see it again. One element that was fun was the behind-the-scenes look at both Arecebo Radio Observatory and the Very Large Array. This is the kind of behind-the-scenes look I wanted to give people with The Astronomer’s Crypt and also, to some degree, with The Solar Sea. While I’ve never visited Arecebo, I have worked at the VLA and recognized the control room and other places in the control building. It was great to see those places again. One thing I noticed, though, was that in the movie, the astronomers themselves operated the telescopes. In real life, specialists who know the instrumentation actually operate the telescope. Scientists might be in the room analyzing data as it comes in, but even that is somewhat rare. For the most part, I chalk this up to streamlining the storytelling and keeping the number of on-screen characters to a manageable number.

Overall, I enjoyed the movie more on this viewing than I remembered. I like how the movie focuses on the human reaction to alien contact more than the science fictional elements of the actual alien encounter. We see a wide variety of reactions from the general public, to religious figures, to politicians. While we see some paranoia, most of the extreme reactions come from … well, extremists. The acting is fine with Jodie Foster turning in a believable performance as astronomer Eleanor Arroway. I also especially enjoyed seeing Tom Skerritt as David Drumlin, head of the National Science Foundation, one of Ellie’s chief critics and ultimately her rival to meet the aliens. Another fun appearance was John Hurt from Alien and Doctor Who as the eccentric billionaire S.R. Hadden who funds Ellie’s experiments.

As I recall, the movie is a generally faithful adaptation of the novel. I was pleased to see that the movie didn’t include one element of the novel I really disliked. I’m not certain how necessary it is to give a spoiler warning for a novel that’s over thirty years old, but just in case, I’ll cover this element in the next paragraph. Skip over it if you haven’t read the book and don’t want the spoiler!

In the novel, Ellie has a stepfather named John Staughton. He’s a university professor who raises her after Ted Arroway dies. It’s ultimately revealed that Arroway is not really Ellie’s father, but that Staughton was her biological father all along. To me, this felt like academic elitism of the worst order. When I read it, it seemed as though Carl Sagan was saying that brilliant Dr. Eleanor Arroway couldn’t really be the daughter of an ordinary working man, but required the genetics of an actual PhD scientist in order to be as smart as she was. Of course, this impression could be unintentional, and it could have resulted from an editor’s suggestion at some point in the revision process to add more drama to the story. That said, it was bad enough, it almost proved a showstopper for me when I read the novel.

One element of the movie that was both fun, yet dates the film was the addition of scenes with President Bill Clinton. On one hand, it adds a certain credibility to the film, but it also sets it indelibly in the past. Of course, that will happen with almost any near-future science fiction and it’s perhaps better to fix it in time than let the older tech in the control rooms and older cars on the streets be the main “tells.”

Ultimately, I think both the novel and film are great in that they provide a look into the mind of Carl Sagan, who long served as an important spokesman for science and astronomy. Like Urania by Camille Flammarion, Contact provides insights into Carl Sagan that his non-fiction alone couldn’t provide. We get to see more of his hopes and fears and even though many of us never got to meet him, we still have the opportunity to know him better.

Sailing the Solar Sea

The Planetary Society was founded by Carl Sagan, Bruce Murray, and Louis Friedman in 1980 as a voice in support of planetary exploration. I was in high school at the time and joined soon after it was founded. I remember an article in the society’s magazine The Planetary Report that discussed solar sails as vehicles for planetary exploration. The idea immediately grabbed me and I had an idea for a book about astronauts who traveled aboard a solar sail and made a sort of grand tour of the solar system much as NASA’s Voyager space craft was doing at the time. The novel was to be called Sailors on the Solar Sea. It took over twenty-five years for me to see a draft through to completion and the novel was finally published in 2009 with a shortened title: The Solar Sea. Now in 2018, I’m pleased to announce the release of the second, updated edition.

In the novel, whales around the world changed their songs the day scientists announced the discovery of powerful new particles around Saturn’s largest moon which could solve Earth’s energy needs. The Quinn Corporation rushes to build a solar sail space craft to unlock the secrets of these strange new particles. They gather the best and brightest to pilot the ship: Jonathan Jefferson, an aging astronaut known as the last man on Mars; Natalie Freeman, a distinguished Navy captain; Myra Lee, a biologist who believes the whales are communicating with Saturn; and John O’Connell, the technician who first discovered the particles. Charting the course is the mysterious Pilot who seems determined to keep secrets from the rest of the crew. Together they make a grand tour of the solar system and discover not only wonders but dangers beyond their imagination.

I started the novel soon after my mom bought me my first typewriter. It was a Smith-Corona electric and man that thing was nice. I remember sitting down for a couple of hours every weekend and savoring the hum of the typewriter and the tap-tapping as the ball hit the ribbon. I carefully saved those pages for many years. Jonathan Jefferson goes all the way back to the beginning. Natalie Freeman started as Nathaniel Freeman. I remember finding those early pages sometime in the early 1990s and feeling like there wasn’t enough of a plot to preserve, so I tossed the whole thing out. Around 2000, I made another attempt at the novel. I think I only succeeded in hammering out four chapters. That’s when Myra Lee and the whales came into the story. I grew up in Southern California and visited Marineland as a kid. My first job in astronomy was on Nantucket Island. Long before Captain Kirk saved the whales in Star Trek IV, I’ve been captivated by the idea of whale intelligence.

In 2007, Jacqueline Druga-Johnston, who was then the owner of LBF Books, challenged me to try my hand at the National Novel Writing Month. I looked at what I had written before and didn’t like the direction I had been going with The Solar Sea, tossed that draft aside, and made a third go at it. In 2007, my youngest daughter was just getting ready to start Kindergarten. I wrote the novel in the evenings after the kids went to bed. I succeeded in writing 50,000 words in a month and felt satisfied that I had, essentially, a complete story. I took the next three months and revised the novel, adding about 13,000 more words and then submitted it to LBF for publication. The novel was published in early 2009. In the subsequent years, LBF was acquired by Lachesis Publishing.

The novel is set in the near future, less than a hundred years hence. Despite that, the novel has mostly aged well and not become too dated, though there were a couple of places where I saw time rapidly encroaching on the novel. Also, in the years since the novel’s release, I’ve continued to learn more about solar sails and realized I could do better. Lachesis, for their own business reasons, didn’t want to invest in a new edition, so when the contract came up for renewal in 2017, I requested a reversion of the rights. The upshot is that I’m proud to announce the release of the newest edition this week.

Although the new edition has been re-edited, I haven’t introduced any new plot points. Readers of the first edition should recognize it as the same novel with just a few updates to the science and technology. One nice new feature is that I worked with artist Laura Givens to create diagrams of the Solar Sail Aristarchus for the book.

Print copies of The Solar Sea are available at:

Ebook copies of The Solar Sea are available at:

Elusive Mars and Majestic Jupiter

The weather in the Southwest has dried out and warmed up, which inspired another session in the back yard with my Celestron 8-inch telescope and Orion StarShoot USB Camera. My primary hope was to capture Mars. Now Mars is a notoriously difficult target for a small telescope. It’s an orb in slightly varying shades of red. To see any detail at all is a challenge. In the book Cosmos, Carl Sagan described Percival Lowell’s challenges observing Mars:

    Observations of this sort are not easy. You put in long hours at the telescope in the chill of the early morning. Often the seeing is poor and the image of Mars blurs and distorts. Then you must ignore what you have seen. Occasionally the image steadies and the features of the planet flash out momentarily, marvelously.

I couldn’t say it better myself. I watched the planet for several minutes. Every now and then I’d see the polar cap appear and occasionally a dark feature would join it. I put in my video camera and most frames came out as red blurs, though a few showed a hint of structure. I used the RegiStax 6 package to combine the images and work to bring out the structures and was able to get this image.

Mars-160211-Color

When I first saw the images, I thought the telescope was slightly out of focus because Mars was slightly oblong. However, checking Sky and Telescope magazine, it turns out that the relative positions the planets mean Mars is in a slightly gibbous phase right now. We actually can see the terminator from Martian day to night. Perhaps it’s because this little desert world is at once similar to ours but challenging to really resolve well that we find it so fascinating.

Looking at it through the telescope and even on the video screen, I thought I could convince myself that I saw linear structures like canals. Even without canals, a visit would be fascinating and I’ve imagined going there in my fiction. In my story “Arachne’s Stepchildren” which appears in The Martian Anthology, I imagine miners on Mars actually finding life deep underground. In my novel The Solar Sea, the solar sail Aristarchus stops by the planet and a landing party visits the summit of Olympus Mons, the tallest mountain in the solar system. In the novel, the astronauts continue on to Jupiter and so did I. Here are images of Jupiter without a filter and through a blue filter.

Jupiter-160211-Comparison

The exciting part of this image is that you can see the Great Red Spot, the solar system’s longest lasting storm, in the upper brown belt near the planet’s center. It’s a bit faint, elusive like Mars, but it’s a little more apparent in the blue filter.

Even without a telescope, it’s worth stepping out the door if you happen to be up a little before sunrise. Mercury, Venus, Mars, Jupiter, and Saturn are all visible without a telescope. In fact, with a sufficiently large telescope, you would find Pluto not far from Mercury and Venus right now. I enjoy going out and looking even though my “day” job involves long hours with the telescope. It helps to make a personal connection to those objects in the sky which inspire us and it gives me the opportunity to share those wonders with my family.

Cosmos: A Spacetime Odyssey

The autumn of 1980 was perhaps one of the most difficult times of my life. My father died suddenly of a heart attack just about six weeks before my fourteenth birthday. One thing that helped pull me through that difficult time was Carl Sagan’s original Cosmos. It fostered my love of astronomy and set me on a course that would eventually earn me a degree in physics. Thirty-five years later, I’m now sharing Neil deGrasse Tyson’s updated Cosmos with my daughters. My youngest is the same age I was when I discovered Sagan’s original.

Cosmos: A Spacetime Odyssey_titlecard

Overall, I’ve been impressed with the series. I can nitpick some places where they’ve sacrificed precision in how a particular astronomical object or phenomena is depicted in the name of dramatic effect, but for the most part Tyson gets the important things right. The show has allowed me to better explain the importance of spectra in my work at Kitt Peak. I was delighted to see an episode featuring Henrietta Leavitt, Annie Jump Cannon, and Cecilia Payne-Gaposchkin. I was able to discuss how they influenced both my work and how people they worked with directly inspired teachers of mine such as Emilia Belserene at Maria Mitchell Observatory. I also appreciated the discussion about how neutrinos can precede supernova explosions, though I noticed they managed to leave out mention of Stirling Colgate’s important contributions to that work.

Perhaps the most important thing about the series is that I see the same wonder on the faces of my daughters that I had when I watched Carl Sagan’s original series. My oldest daughter has already set her sights on a degree in mathematics and computer science. My youngest still has options wide open. I hold no strict expectation she’ll pursue a career in science, but I do expect she’ll come to respect the process of science and hold an appreciation of it no matter what she does.

Unlike Neil deGrasse Tyson, I hold no Ph.D. My career in astronomy diverged from a strictly academic path into more of an engineering and support path. Despite that, I feel it’s important to convey my love of science in classrooms as well as science fiction and steampunk conventions. In fact, I think there’s value in showing that you don’t need a Ph.D. to appreciate, use, and act on scientific discovery. Because of my interest in communicating about science, I’ve been paying close attention to Tyson’s presentations. He is a good, clear communicator and I’ve especially enjoyed seeing how he introduces subjects such as stellar spectroscopy, supernovae, and black holes.

In the most recent episode I watched, Tyson presented the sobering evidence for climate change. There’s been a lot of debate about it, but as he notes there’s well over a century of solid evidence that carbon dioxide is increasing and global temperatures are warming. He notes that weather is hard to predict and there are lots of minute variations. He demonstrated this by walking a dog. The dog goes all over the place, attracted by different things. However, climate is like the man holding the leash. There may be random variations, but there’s also an overall path. Although climate change is a sobering reality, I appreciated that Tyson showed that there is hope. We have to work hard and make solar and wind energy a reality and we need to do it much faster than we have been.

Now some will say addressing climate change is just too big a problem to address. I watched this episode after visiting New Orleans ten years after Hurricane Katrina. Ten years ago, some people said rebuilding New Orleans was just too big a challenge, we should let the city go. Although Katrina still echoes in New Orleans, it’s returned to being a bright and vibrant city. Researchers at Tulane University are working on finding ways to restore the gulf coast and perhaps even find ways to make New Orleans much safer should another hurricane strike. We humans are amazing and we can solve the big problems when we set our minds to it.

I appreciate the effort Neil deGrasse Tyson, Ann Druyan, and Seth MacFarlane have put into bringing a new version of the show back. I hope it inspires a new generation to look at the world with wonder and to take the scientific process seriously.