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Category: space travel – Page 242

Writer-director Neil Burger is well known for his provocative cinematic projects, most notably 2006’s period-set magician movie “The Illusionist,” 2011’s psychological thriller “Limitless,” and a trio of “Divergent” films adapted from author Veronica Roth’s young adult sci-fi novels.

Now Burger has his eyes fixed on the stars with his new science fiction adventure flick, “Voyagers,” which revolves around the perils inside a generation spaceship carrying 30 home-grown candidates on a one-way mission to settle an exoplanet 86 years from Earth.

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I found your rocket … Kyle Foreman, a spokesman for the sheriff’s office, told GeekWire that the property owner left a message reporting the debris. “The sheriff’s office checked it out on Monday, and SpaceX staff came over on Tuesday and retrieved it,” Foreman said. SpaceX has yet to detail precisely what went wrong with the Falcon 9 rocket’s second stage, such that it failed to de-orbit in a controlled manner over the ocean. Fortunately, no one on the ground was injured. (submitted by Ken the Bin)

Brazilian launch site stirs controversy. The Brazilian government is committed to further developing the Alc ntara Launch Center on the country’s north Atlantic coast, near the equator. However, the region is also home to Afro-Brazilian residents of settlements first established by escaped slaves. These settlements are known as Quilombola communities. The Washington Post recently did a deep dive into the controversy, examining how eviction of these communities would affect local residents. The newspaper found that the spaceport expansion could displace nearly 2100 people from Quilombola communities.

Brazil’s polarizing dilemma … Marcos Pontes, head of the Brazilian Ministry of Science, Technology and Innovation, said there are no plans to relocate families “right now.” And if the time comes to remove people, he predicted, they will go willingly. “They are going to see development coming in, real development,” he said. “All of the resistance, that is going to be gradually disappearing.” This seems unlikely. The clash is the distillation of one of Brazil’s most urgent and polarizing dramas, the publication says. What is more important: developing a vast country with unrealized potential and a lagging economy? Or protecting some of its most vulnerable communities?

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Circa 2009

(PhysOrg.com) — Scientists have managed to levitate young mice in research carried out for NASA. Levitated mice may help research on bone density loss during long exposures to low gravity, such as in space travel and missions to other planets.

The researchers worked from a number of laboratories around the U.S., including the Jet Propulsion Laboratory in Pasadena, California and the University of Missouri. The research was done on behalf of NASA, and was published in the online journal Advances in Space Research on 6 September 2009.

The scientists built a variable gravity simulator consisting of a superconducting magnet that could generate a magnetic field strong enough to levitate the inside every cell in the mouse’s body. Water is weakly diamagnetic, which means that in the presence of a strong magnetic field the electrons in water rearrange orbit slightly, creating tiny currents in opposition to the external magnetic field. If the external magnet is strong enough, the diamagnetic repulsion of the water in the mouse tissue is enough to exactly balance the force of gravity on the body.

Continue reading “Mice Levitated for Space Research” | >

Plus, we can bring along 1.5 tons.

Scientists have outlined the wild way humans could travel past Neptune in under 10 years—with over 1.5 tons of cargo on board.

The secret is an in-the-works direct fusion drive (DFD), which will kick in once the spacecraft reaches orbit and propel it at up to 44 kilometers per second. From there, the spacecraft could conduct experiments on Neptune as well as trans-Neptunian objects (TNOs), or outer dwarf planets like Makemake, Eris, and Haumea.

Continue reading “The Direct Fusion Drive That Could Get Us Past Neptune in 10 Years” | >

I just finished the most recent season of The Expanse – my current favourite Sci-Fi series. Unlike most of my other go-to Sci-Fi, The Expanse’s narrative is (thus far) mainly contained to our own Solar System. In Star Trek, ships fly about the galaxy at Faster-Than-Light speeds giving mention to the many light years (or parsecs *cough* Star Wars) travelled to say nothing of sublight journeys within solar systems themselves. The distances between stars is huge. But, for current-day Earthling technology, our Solar System itself is still overwhelmingly enormous. It takes years to get anywhere.

In The Expanse, ships use a fictional sublight propulsion called The Epstein Drive to travel quickly through the Solar System at significant fractions of light speed. We’re not nearly there yet, but we are getting closer with the announcement of a new theoretical sublight propulsion. It won’t be an Epstein drive, but it may come to be known as the Ebrahimi Drive – an engine inspired by fusion reactors and the incredible power of solar Coronal Mass Ejections.

Rocket engines have been the backbone of space exploration lifting humans to the Moon, rovers to Mars, and sending probes outside the Solar System. However, for all their blast-offy awesomeness, they are inherently inefficient and bulky. You can only get so much energy out of rocket fuel. As a result, most of your entire spacecraft is a giant fuel tank. The mass of a rocket destined for Mars could be as much as 78% fuel. To reduce weight, we need more efficient engines.

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Elon Musk has given us his findings to why the SpaceX Starship SN 11 exploded above the landing pad.
I explore fixes from a system safety standpoint. See what I recommend.

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Humanity has come a long way in understanding the universe. We’ve got a physical framework that mostly matches our observations, and new technologies have allowed us to analyze the Big Bang and take photos of black holes. But the hypothetical EmDrive rocket engine threatened to upend what we knew about physics… if it worked. After the latest round of testing, we can say with a high degree of certainty that it doesn’t.

If you have memories from the 90s, you probably remember the interest in cold fusion, a supposed chemical process that could produce energy from fusion at room temperature instead of millions of degrees (pick your favorite scale, the numbers are all huge). The EmDrive is basically cold fusion for the 21st century. First proposed in 2001, the EmDrive uses an asymmetrical resonator cavity inside which electromagnetic energy can bounce around. There’s no exhaust, but proponents claim the EmDrive generates thrust.

The idea behind the EmDrive is that the tapered shape of the cavity would reflect radiation in such a way that there was a larger net force exerted on the resonator at one end. Thus, an object could use this “engine” for hyper-efficient propulsion. That would be a direct violation of the conservation of momentum. Interest in the EmDrive was scattered until 2016 when NASA’s Eagelworks lab built a prototype and tested it. According to the team, they detected a small but measurable net force, and that got people interested.

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Rocket builder ABL Space signed a long-term agreement for multiple launches with Lockheed Martin, agreeing to provide the defense giant with as many as 58 rockets through the end of the decade.

Lockheed Martin will buy up to 26 of ABL’s RS1 rockets through 2025, with an option for up to 32 additional launches through 2029, ABL announced on Monday.

“Having this assured access to space will accelerate our ability to demonstrate the spacecraft and associated payload technologies we are developing to the meet the future mission needs for our customers,” Lockheed Martin Space executive vice president Rick Ambrose said in a press release.

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Circa 2019

SpaceX’s Mars ships won’t be ferrying just the super rich to and from the Red Planet, if everything goes according to Elon Musk’s plan.

The price of a seat aboard SpaceX’s Starship interplanetary vehicle will eventually drop enough to be accessible to a large chunk of the industrialized world’s population, the billionaire entrepreneur predicted over the weekend.

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