The stuck solar panel on Intelsat 19, launched June 1, has finally deployed.
Good news: The stuck solar panel on Intelsat 19, launched June 1, has finally deployed.
Good news: The stuck solar panel on Intelsat 19, launched June 1, has finally deployed.
The competition heats up: Russia’s Deputy Prime Minister said today that his country needs to expand its commercial space services and grab market share from the United States and Europe.
I wonder if these comments stem from a realization that — because Russia’s Proton rocket, its main commercial space product, is twice as expensive as SpaceX’s Falcon 9 — Russia faces a significant loss of business if it does not adapt.
The cost of launch: Clark Lindsey posted today this interesting cost comparison between the Falcon 9 and the Russian-built Proton rocket.
The essence is this: The Proton rocket costs twice as much as the Falcon 9. If SpaceX can make a profit charging these low numbers, the launch industry is going to see a major shake out in the coming years.
The most powerful rocket presently in service, the Delta-4 Heavy, successfully launched a U.S. surveillance satellite this morning.
The booster features three core rocket boosters and is topped with a second stage to place payloads into orbit. It is 235 feet tall (72 meters) and can carry payloads of up to 24 tons into low-Earth orbit and 11 tons to geosynchronous orbits.
SpaceX’s proposed Falcon Heavy would launch about 50 tons into low Earth orbit, making it twice as powerful, should it be built. The next obvious question, which I can’t answer at the moment, is how do these two rockets compare in terms of cost?
A skeptic takes an educated look at alternative energy.
The matter of affordable costs is the hardest promise to assess, given the many assorted subsidies and the creative accounting techniques that have for years propped up alternative and renewable generation technologies. Both the European Wind Energy Association and the American Wind Energy Association claim that wind turbines already produce cheaper electricity than coal-fired power plants do, while the solar enthusiasts love to take the history of impressively declining prices for photovoltaic cells and project them forward to imply that we’ll soon see installed costs that are amazingly low.
But other analyses refute the claims of cheap wind electricity, and still others take into account the fact that photovoltaic installations require not just cells but also frames, inverters, batteries, and labor. These associated expenses are not plummeting at all, and that is why the cost of electricity generated by residential solar systems in the United States has not changed dramatically since 2000. At that time the national mean was close to 40 U.S. cents per kilowatt-hour, while the latest Solarbuzz data for 2012 show 28.91 cents per kilowatt-hour in sunny climates and 63.60 cents per kilowatt-hour in cloudy ones. That’s still far more expensive than using fossil fuels, which in the United States cost between 11 and 12 cents per kilowatt-hour in 2011. The age of mass-scale, decentralized photovoltaic generation is not here yet.
Then consider the question of scale. Wind power is more advanced commercially than solar power, but with about 47 gigawatts in the United States at the end of 2011 it still accounted for less than 4 percent of the net installed summer generating capacity in that country. And because the capacity factors of U.S. wind turbines are so low, wind supplied less than 3 percent of all the electricity generated there in 2011.
Read the whole article. It is detailed, thoughtful, and blunt.
The competition heats up: China’s Shenzhou 9 spacecraft has landed safely, and all three astronauts have exited the capsule in good health. More details here.
A private organization focused on preventing asteroids from impacting the Earth today announced its plans to build and launch an infrared space telescope by 2017.
SpaceShipTwo resumed flight tests yesterday.
China has spent $6 billion since 1992 on its manned space program.
The competition heats up: Boeing has successfully tested the maneuvering thruster it plans to use on its CST-100 crew/cargo capsule.
Using WhiteKnightTwo to launch cargo, including an update on revisions to SpaceShipTwo’s design.
More details on both SpaceX’s Merlin engine test yesterday as well as Orbital Sciences’ test firing of its Antares AJ-26 rocket engine on Monday.