Space and astronomy news
Fortunately, the real-world search for signs of extraterrestrial civilizations doesn’t have to deal with an alien armada like the one that’s on its way to Earth in “3 Body Problem,” the Netflix streaming series based on Chinese sci-fi author Cixin Liu’s award-winning novels. But the trajectory of the search can have almost as many twists and turns as a curvature-drive trip from the fictional San-Ti star system.
If future explorers manage to set up communities on Mars, how will they pay their way? What’s likely to be the Red Planet’s primary export? Will it be Martian deuterium, sent back to Earth for fusion fuel? Raw materials harvested by Mars-based asteroid miners, as depicted in the “For All Mankind” TV series? Or will future Martians be totally dependent on earthly subsidies?
In a new book titled “The New World on Mars,” Robert Zubrin — the president of the Mars Society and a tireless advocate for space settlement — says Mars’ most valuable product will be inventions.
The multiverse may be a cool (and convenient) concept for comic books and superhero movies, but why do scientists take it seriously?
In a new book titled “The Allure of the Multiverse,” physicist Paul Halpern traces why many theorists have come to believe that longstanding scientific puzzles can be solved only if they allow for the existence of other universes outside our own — even if they have no firm evidence for such realms.
It’s easy to confuse the hypotheses with the hype, but Halpern says there’s a huge difference between the multiverse that physicists propose and the mystical realm that’s portrayed in movies like “Doctor Strange in the Multiverse of Madness.”
“Some people accuse scientists of trying to delve into science fiction if they even mention the multiverse,” Halpern says in the latest episode of the Fiction Science podcast. “But the type of science that people are doing when they talk about the multiverse is real science. It’s far-reaching science, but it’s real science. Scientists are not saying, ‘Hey, maybe we can meet another Spider-Man and attack Kingpin that way.'”
Elon Musk and Jeff Bezos may harbor multibillion-dollar dreams of sending millions of people to live on Mars, on the moon and inside free-flying space habitats — but a newly published book provides a prudent piece of advice: Don’t go too boldly.
It’s advice that Kelly and Zach Weinersmith didn’t expect they’d be giving when they began to work on their book, titled “A City on Mars.” They thought they’d be writing a guide to the golden age of space settlement that Musk and Bezos were promising.
“We ended up doing a ton of research on space settlements from just every angle you can imagine,” Zach Weinersmith says in the latest episode of the Fiction Science podcast. “This was a four-year research project. And about two and a half years in, we went from being fairly optimistic about it as a desirable, near-term likely possibility [to] probably unlikely in the near term, and possibly undesirable in the near term. So it was quite a change. Slightly traumatic, I would say.”
Quick: Name a woman scientist.
Chances are the name you came up with is Marie Curie, the physicist and chemist who won two Nobel Prizes more than a century ago for the discoveries she and her husband Pierre made about radioactivity.
But who else? In a new book titled “Her Space, Her Time,” quantum physicist Shohini Ghose explains why women astronomers and physicists have been mostly invisible in the past — and profiles 20 researchers who lost out on what should have been Nobel-level fame.
“This issue around having low representation of women in physics is something that’s common all around the world,” Ghose says in the latest episode of the Fiction Science podcast. “And I’ve certainly faced it in my own experiences as a physicist growing up. I really didn’t know of any woman physicist apart from Marie Curie.”
When will we find evidence for life beyond Earth? And where will that evidence be found? University of Arizona astronomer Chris Impey, the author of a book called “Worlds Without End,” is betting that the first evidence will come to light within the next decade or so.
But don’t expect to see little green men or pointy-eared Vulcans. And don’t expect to get radio signals from a far-off planetary system, as depicted in the 1992 movie “Contact.”
Instead, Impey expects that NASA’s James Webb Space Telescope — or one of the giant Earth-based telescopes that’s gearing up for observations — will detect the spectroscopic signature of biological activity in the atmosphere of a planet that’s light-years away from us.
“Spectroscopic data is not as appealing to the general public,” Impey admits in the latest episode of the Fiction Science podcast. “People like pictures, and so spectroscopy never gets its fair due in the general talk about astronomy or science, because it’s slightly more esoteric. But it is the tool of choice here.”
Can anyone keep up with SpaceX in the commercial space race?
It might be one of the four companies profiled in “When the Heavens Went on Sale” — a new book written by Ashlee Vance, the tech journalist who chronicled SpaceX founder Elon Musk’s feats and foibles eight years ago. Or it might be one of the dozens of other space ventures that have risen up to seek their fortune on the final frontier. Or maybe no one.
The space race’s ultimate prizes may still be up for grabs, but in Vance’s view, one thing is clear: There wouldn’t be a race if it weren’t for Musk and SpaceX.
“Elon sort of set this whole thing in motion,” Vance says in the latest episode of the Fiction Science podcast. “My book is more or less a story of people who want to be the next Elon Musk.”
Continue reading “Chasing SpaceX: The Commercial Space Race Gets a Reality Check”
The world’s richest human wants to build a city on Mars: Fifty years ago, Elon Musk’s vision of our future on the Red Planet might have sounded like science fiction — but today, Musk is actually serious about the idea of using billions of dollars from ventures like SpaceX’s Starlink broadband network to finance the move to Mars.
“In looking in the long term, and saying what’s needed to create a city on Mars, well, one thing’s for sure: a lot of money,” Musk said back in 2015. “So we need things that will generate a lot of money.”
What kind of city would Musk want to see on Mars? His vision calls for a place that offers “everything from iron foundries to pizza joints to nightclubs” while getting rid of “special interests and coercion of politicians.” But what if cities on Mars turn out to be like cities on Earth, complete with wealth disparity, racism — and ambitious billionaires?
That’s the premise for “Maurice on Mars,” a darkly funny series of animated shorts created and written by comedian and TV writer Tim Barnes for Comedy Central’s Animated YouTube channel.
Continue reading “Will Earth’s Follies Take Root on Mars? Black Comedy Explores the Frontier”
What is the multiverse? The idea that the universe we inhabit is just one of many parallel universes gets a superhero shout-out in “Doctor Strange in the Multiverse of Madness,” the latest movie based on Marvel comic-book characters.
And in the opinion of Brian Greene, a theoretical physicist at Columbia University, giving some screen time to the multiverse isn’t such a bad thing — even if the plot has some horror-movie twists.
“I think it’s really good if some of these ideas are brought out in a variety of different ways,” Greene says in the latest episode of the Fiction Science podcast, which focuses on the realm where science and technology intersect with fiction and popular culture.
Continue reading “Why Believing in the Multiverse Isn’t Madness”
Why are black holes so alluring?
You could cite plenty of reasons: They’re matter-gobbling monsters, making them the perfect plot device for a Disney movie. They warp spacetime, demonstrating weird implications of general relativity. They’re so massive that inside a boundary known as the event horizon, nothing — not even light — can escape its gravitational grip.
But perhaps the most intriguing feature of black holes is their sheer mystery. Because of the rules of relativity, no one can report what happens inside the boundaries of a black hole.
“We could experience all the crazy stuff that’s going on inside a black hole, but we’d never be able to tell anybody,” radio astronomer Heino Falcke said. “We want to know what’s going on there, but we can’t.”
Falcke and his colleagues in the international Event Horizon Telescope project lifted the veil just a bit two years ago when they released the first picture ever taken of a supermassive black hole’s shadow. But the enduring mystery is a major theme in Falcke’s new book about the EHT quest, “Light in the Darkness: Black Holes, the Universe, and Us” — and in the latest installment of the Fiction Science podcast, which focuses on the intersection of fact and science fiction.
Continue reading “Scientist sees deep meaning in black holes after Event Horizon Telescope’s triumph”