Why the world’s most ambitious array of submillimeter antennas continues to reap astronomical dividends.
Category: space – Page 705
🏺Super Pink Moon
Fyodor R., Credits article input Oscar Cainer, photography taken in North America, yesterday, by Richard S., one of our members.
Every April, sandwiched between the Worm Moon of March and the Flower Moon of May, the Pink Moon rises to hang like a great glowing orb in the sky, almost impossibly large, bright and full.
Boeing flubbed the first mission of the CST-100. Seemingly a routine mission for SpaceX after completing over 20 deliveries to the International Space Station, Boeing showed how not to do it. During the December 2019 Demo flight for the Boeing Starliner CST-100, the Starliner did not reach its planned orbit. Nor did the Starliner dock to the International Space Station as planned. Boeing was able to complete a number of mission objectives during the flight to comply with the milestones related to NASA’s Commercial Crew.
CST-100 Starliner OFT Recovery – December 22, 2019
On the ULA Atlas V rocket at 6:36 a.m. Friday, Dec. 20, the Boeing Starliner launched from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. Boeing has a long rich history in both aviation and spaceflight. This mission, already three years behind in schedule, should have been a slam dunk.
After launching to the incorrect orbit, Boeing was able to successfully recover the Starliner. NASA shared that Boeing’s CST-100 Starliner spacecraft did successfully complete the first land touchdown of a human-rated capsule at the White Sands Space Harbor in New Mexico at 7:58 a.m. EST (5:58 a.m. MST) on December 22, 2019. The landing followed a deorbit burn for the botched flight, separation of the spacecraft’s service module, and successful deployment of its three main parachutes and six airbags. Boeing’s approach to the Starliner is unique as the prior US-made capsules, including the SpaceX Dragon, are water recoveries.
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Ever dream of becoming a billionaire? Well, believe it or not, space is the way to get rich. With billions of dollars worth of metals in each asteroid, asteroid mining is one of the most lucrative way for humanity to gather material resources. In this video, I talk about how humanity can potentially use asteroid mining to eradicate poverty and possibly make every single person alive rich.
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Small Satellites are Expanding
Posted in satellites, space
Satellites come in all sizes and shapes. A small satellite or SmallSat is commonly considered to be a satellite that weighs less than 500 kg.
As a basic application of various satellite sizes by mass, the common distinction:
| Lower Limit | Upper Limit(kg) | Classification | Examples |
| 1000 | Large satellites | Hubble Space Telescope / Inmarsat-4A F4 | |
| 500 | 1000 | Medium satellites | O3b |
| 0 | 500 | Small satellites | SpaceX StarLink |
CubeSats are smaller yet.
Notes from an Apocalypse
Posted in Elon Musk, space, transhumanism
O’Connell’s previous book, To Be a Machine, was an inspired journalistic exploration of “transhumanism”, the subculture that wants to fast-forward to a technological future in which man becomes part-machine. This one is haunted by the idea that, unless we change our ways, or even if we change our ways, our species does not have much of a future at all. For O’Connell, those fears had been sharpened by recent fatherhood.
A timely study of the world’s growing sense of doom ranges from tourists in Chernobyl to Elon Musk’s plan to colonise Mars.
Global warming is a complex problem that is not easy to solve. While world leaders seem to be dragging their feet over the issue, Yotam Ariel, founder of Bluefield, believes he might have at least one piece of the puzzle sorted. Methane monitoring from space. By leveraging a network of microsatellites with a proprietary sensor, Bluefield plans to deliver alerts and analytics to oil and gas clients to help combat the inadvertent release of methane gas
Methane, a greenhouse gas, is leaking into the atmosphere. One might ask, “Why bother with methane, isn’t carbon dioxide the problem?” Well, according to the IPCC (https://www.ipcc.ch/), methane is 84 times more potent than carbon dioxide, which is clearly a bad thing for global warming. Methane is believed to be responsible for 25% of global warming and knowing who is emitting, when, and how much, would be a massive step towards reversing climate change. Since between 50 and 65% of total global methane emissions come from human activities, being able to identify and stop leaks is crucial to lowering greenhouse gases in our atmosphere.
Bluefield plans to specialize in methane gas detection and not try and solve all problems all at once and thereby reducing complexity. Further reduction in complexity is achieved by leveraging outside suppliers where applicable that complement the Bluefield plans. By reducing the complexity, Bluefield can focus on its core mission and specialty. Areas outside of detection such as the satellite parts, ground stations, the launch, and other services will be outsourced. This will allow Bluefield to quickly move through its development stages. Whereas it might take up to 10 years for a space agency like NASA, JAXA or ESA, to fund, design, test and launch a custom satellite, Bluefield aims to accomplish this as early as next year.
Astronomers have detected two stellar corpses whirling around each other, and they might be producing gravitational waves.
White dwarf stars are what become of stars like our sun after they run out of fuel and turn into leftover hot cores. For many years, researchers have predicted that there should be binary, or two-object, systems made up of white dwarf stars. According to general relativity, two such masses orbiting each other should emit energy in the form of gravitational waves, which are ripples or disturbances in the fabric of spacetime.
