Posts Tagged ‘geoengineering’
[NEWS] Five sci-tech links: NASA climate, Starlink, CO2 on the seabed, moving Earth, neutrino beams
- Evan Gough at Universe Today notes that the long-term climate predictions of NASA have so far proven accurate to within tenths of a degree Celsius.
- Matt Williams at Universe Today notes how the launching of satellites for the Starlink constellation, providing Internet access worldwide, could be a game-changer.
- Eric Niiler at WIRED suggests that Texas–and other world regions–could easily sequester carbon dioxide in the seabed, in the case of Texas using the Gulf of Mexico.
- Matt Williams at Universe Today shares a remarkable proposal, suggesting Type II civilizations might use dense bodies like black holes to create neutrino beam beacons.
Matteo Ceriotti explains at The Conversation how, as in The Wandering Earth, the Earth might be physically moved. https://theconversation.com/wandering-earth-rocket-scientist-explains-how-we-could-move-our-planet-116365ti
[NEWS] Five science links: geoengineering, Europa probe, ocean worlds, oxygen, black hole portals
- The National Observer takes a look at the challenges, both technological and psychological, facing geoengineers as they and us approach our their hour of trial.
- Evan Gough at Universe Today shares a proposal for a nuclear-fueled robot probe that could tunnel into the possibly life-supporting subsurface oceans of Europa.
- Meghan Bartels at Scientific American notes a new study suggesting that most worlds with subsurface oceans, like Europa, are probably too geologically inactive to support life.
- Matt Williams at Universe Today notes a new study demonstrating mechanisms by which exoplanets could develop oxygen-bearing atmospheres without life.
- Gaurav Khanna writes at The Conversation about how, drawing on research done for the film Interstellar, it does indeed seem as if supermassive black holes like Sagittarius A* might be used as hyperspace portals if they are also slowly rotating.
[NEWS] Five technology links: geoengineering, Nile, Long March 9, space internet, hacking
- Wired reports on how climate change skeptics are starting to get interested in geoengineering.
- BBC reports on the growing stresses being placed on the Nile, but countries upstream and downstream.
- The Long March 9 rocket proposed for a 2030 date by China would be a Saturn V equivalent, capable of propelling people directly to the Moon. Universe Today reports.
- Is it necessarily worthwhile to develop an Internet suited for space? Wired reports. Wired considers.
- Are nuclear plants in Ontario at risk of hacking? NOW Toronto makes a case.
[NEWS] Five sci-tech links: Freenet, smartphones, exoplanet mountains, kilonova, geoengineering
- Motherboard takes a look at the Cleveland Free-Net, an early bulletin board system that was one of the first vehicles for people to get online in the 1980s, here.
- Wired hosts an article making the case that blaming smartphones for causing human problems fits in an ancient tradition of human skepticism of new technologies, here.
- Universe Today’s Matt Williams notes that upcoming generations of telescopes may be able to map mountains on exoplanets. (Well, really bumpy planets orbiting small stars, but still.)
- The kilonova GW170817/GRB in NGC 4993, nearest detected source of gravitational waves, is continuing to brighten mysteriously. Matt Williams at Universe Today reports.
- Brian Kahn at Earther notes that, although one popular theorized geoengineering method involving injecting sulfur dioxide into the upper atmosphere would greatly slow down global cooling and be good for almost all ecosystems, if it stopped rapid calamitous change would be the result.
[NEWS] Three links about exoplanetary systems and extraterrestrial life
- As we understand the Anthropocene on Earth, we may understand inhabited exoplanets all the better. VICE reports.
- Unsurprisingly, study of stellar X-rays suggests that older and less excitable stars may be most suitable for life. Universe Today reports.
- A new study suggests that TRAPPIST-1 could support unsuspected gas giants, too, orbiting far away. Universe Today reports.