Sierra Nevada completes first Dream Chaser milestone

The competition heats up: Even as it prepares to complete the last milestone in its NASA contract for developing a manned version of Dream Chaser, Sierra Nevada has just completed the first milestone on its contract to build a cargo version of the reusable lifting body spaceplane.

Though Sierra Nevada did not win a contract to build the manned Dream Chaser, it did have a development contract with NASA that called for one more glide flight test, a test the company had until now decided not to fly because the cost would exceed the milestone payment. This changed however after they won a cargo contract, as the flight will provide important test data for building the cargo version.

Meanwhile, the company’s plan for building the cargo vehicle has been approved by NASA, thus rewarding them their first milestone on that contract, with the following schedule:

Per current schedule goals, Mr. Olson added the inaugural Dream Chaser cargo flight to ISS is aiming for a launch – on the United Launch Alliance Atlas V – as early as October 2019, or as late as April 2020. The company is aiming to build two Dream Chasers, able to fly a total of 30 times over a 10 year lifetime.

Once built and successfully flying, they also plan to move forward on developing the manned version, both for NASA and for others.

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Getting and Installing Linux – Part 3

UEFI and booting Linux on Win 8.1 & 10 machines

by James Stephens

Unified Extensible Firmware Interface (UEFI) is intended to be a modern alternative to BIOS. Ideally UEFI-(Secure Boot) blocks malware from being loaded when the computer is booted by using digital keys which software must possess in order to be booted onto the computer. UEFI supplants the traditional BIOS and it’s post screen, appreciably shortening boot times but sometimes adding a few more steps to set up a computer to boot into Linux. If necessary UEFI-(Secure Boot) may be disabled to allow access to the BIOS and the booting of non-UEFI complaint operating systems, such as 32 bit Linux or legacy Windows, and set up the computer to boot into Linux as I described in the previous post. But I recommend using UEFI if at all possible.
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Smallsat market to exceed $22 billion

The competition heats up: A new report estimates the market for small satellites will exceed $22 billion in the next decade.

According to Euroconsult’s latest report, Prospects for the Small Satellite Market, we are on the cusp of a major revolution for the space sector and overall space ecosystem, as more than 3,600 smallsats are expected to be launched over the next ten years, a significant increase from the previous decade. The total market value of these satellites is anticipated to be $22 billion (manufacture and launch), a 76% increase over that of 2006-2015. This rate of growth is unprecedented for the space sector and will bring about fundamental changes as both new and established industry players attempt to increase their capabilities in order to gain market share.

What I expect is a splitting of the space industry, with unmanned smallsats launched by smaller rockets on one hand and big spaceships and payloads launched by big rockets on the other hand. In both cases, the competition will likely force prices down, so that more customers will find space affordable.

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Auction of first published book describing Copernicus’ heliocentric theory

Got some spare cash? On July 13, the auction house Christies in London will be selling a first edition of the first book ever published describing Copernicus’ theory that the Earth orbited the Sun.

De Libris Revolutionum Eruditissimi Viridoctoris came not from Nicolaus Copernicus, but from his only student, Georg Joachim Rheticus, and when published in 1540, provided the momentum needed for Copernicus to finally have his landmark De revolutionibus orbium coelestium published in 1543.

Rheticus (1514-1574) published this first book on the subject based on his studies under Copernicus, all the while imploring his master to finally publish the master work which had been finished for 25 years. Copernicus resisted publishing De revolutionibus orbium coelestium for 30 years due to his fear of the Catholic Church, but when Rheticus published this book in 1540, Copernicus finally gave Rheticus the go ahead to publish the major work for him.

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Cubesats to the planets!

Link here. The article is a good detailed overview of the many upcoming planetary missions that are using small and relatively inexpensive cubesats as either part of their mission, or are the mission itself.

This trend also partly explains the number of new rocket companies like Rocket Lab and Firefly Space Systems that are developing small rockets aimed at launching cubesats. These companies have recognized a growing demand, and are trying to serve it. As the article notes,

Lifts are so hard to come by that the first interplanetary CubeSat — NASA’s twin INSPIRE mini-spacecraft, intended to test key technology for future missions — has been waiting for almost two years. “We still have to find a ride,” says Anthony Freeman, who manages the Innovation Foundry at NASA’s Jet Propulsion Laboratory in Pasadena, California.

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European experimental space junk removal mission to launch

The competition heats up: A European Space Agency mission to test technologies for removing space junk will launch sometime next year.

Presented at the Royal Society’s summer science exhibition this week, and led by the Surrey Space Centre, the systems included a net, harpoon and drag sail, which scientists have incorporated into a test platform for launch into space. The platform will also carry “artificial junk” in the form of small satellites known as CubeSats.

Once the platform is launched into space, a CubeSat will be released. “The CubeSat will be ejected from the platform and then we’ll fire the net at it,” said Forshaw. The CubeSat, hopefully encased in the net, will then fall back towards Earth and burn up. In the case of the harpoon, the researchers have attached a target made of spacecraft material to a carbon-fibre boom that extends from the platform. “When the harpoon impacts it, it is actually going to simulate a real spacecraft being hit,” said Forshaw.

At the end of the mission the third system, a drag sail will be deployed. Attached to the platform, the sail will speed up its return to Earth where it will burn up in the atmosphere. Similar systems have been proposed for future satellites to allow them to be disposed of without leaving space junk.

With the Chinese, NASA, and private companies all developing robotic missions to either clean up space junk or repair satellites, the competition to do this work is going to get very intense in the next decade.

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Microsoft gives people another reason to dump Windows

Why I use Linux: In its effort to convince users of earlier versions of Windows to upgrade to Windows 10, Microsoft is now inserting a full screen pop-up upgrade notification, often at decidedly unwanted moments.

The Redmond software giant confirmed today it will start showing dark blue screens urging people to install the latest version of Windows. The full-screen ads will pop up on Windows 7 and 8.1 desktops from now until July 30, when the free upgrade period ends.

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