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United Launch Alliance -- a joint venture of Lockheed Martin Space Systems and Boeing -- is livestreaming tonight's launch of an Atlas V rocket. UPI reports: The rocket is set to blast-off at 7:13 p.m. ET from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida... The primary payload is the Continuous Broadcast Augmenting SATCOM, or CBAS, a geostationary communications satellite... Behind the CBAS payload is EAGLE, a platform capable of releasing several secondary payloads into space. According to Gunter's Space Page, EAGLE is carrying five additional payloads, all experimental satellites.
Here's a good overview of the mission: Saturday's mission will begin with ignition of the Atlas Common Core Booster's RD-180 engine, 2.7 seconds before the countdown reaches zero... Five Aerojet Rocketdyne AJ-60A solid rocket motors will augment the CCB at liftoff, igniting about T+1.1 seconds as the rocket lifts off. Climbing away from Cape Canaveral, AV-079 will begin a series of pitch and yaw maneuvers 3.9 seconds into its mission, placing the rocket onto an 89.9-degree azimuth -- almost due East -- for the journey into orbit. Atlas will reach Mach 1, the speed of sound, 34.4 seconds after liftoff, passing through the area of maximum dynamic pressure -- Max-Q -- eleven-and-a-half seconds later.
Long-time Slashdot reader Zorro also shares an interesting remark by the CEO of Boeing when asked if Boeing's cancelled Sonic Cruiser might be making a comeback. "'Something better,' teased the Boeing boss, promising point-to-point connectivity anywhere on Earth in a matter of hours."

And when asked whether Boeing might launch a car into space, he replied instead that "We might pick up the one that's out there and bring it back."

An anonymous reader writes from a report via IEEE Spectrum: A couple of weeks ago NASA announced it has committed $65 million to six companies over the course of two years for the purpose of developing and testing deep-space habitats that could be used for future missions to Mars. One of the six companies, called NanoRacks, is attempting to take empty fuel tanks from the upper stages of rockets and turn them into space habitats on-orbit. IEEE Spectrum reports: "A rocket like the the Atlas V, which can deliver payloads of nearly 19,000 kg to low Earth orbit, consists of three primary pieces: on the bottom, you've got the first stage booster, which consists of a huge engine and some big tanks holding kerosene fuel and oxidizer. Above that, there's the second stage, which consists of one or two smaller engines, a big tank for storing liquid hydrogen fuel, and a smaller tank for oxidizer. The payload, which is what all of the fuss is about, sits on top. The first stage launches the rocket off of the pad and continues firing for about four minutes. Meanwhile, the second stage fires up its own engine (or engines) to boost the payload the rest of the way into orbit. On the Atlas V, the second stage is called Centaur. Once Centaur gets its payload where it needs to go, it separates, and then suicides down into Earth's atmosphere. Getting a payload into space is so expensive because you have to build up this huge and complicated rocket, with engines and guidance systems and fuel tanks and stuff, and then you basically use it for like 15 minutes and throw it all away. But what about the second stage? You've got a whole bunch of hardware that made it to orbit, and when getting stuff to orbit costs something like $2,500 per kilogram, you then tell it to go it burn itself up in the atmosphere, because otherwise it's just useless space junk." NanoRacks thinks this is wasteful, so they want to turn these tanks into deep space habitats. IEEE notes that the hydrogen fuel tank on a Centaur upper stage has a diameter of over 4 meters, and an interior volume of 54 cubic meters, while the inflatable BEAM module that arrived at the ISS earlier this year has an interior volume of 16 cubic meters. For more details, IEEE Spectrum spoke with Jeff Manber, CEO of NanoRacks, and Mike Johnson, NanoRacks' Chief Designer. You can read their responses here.

schwit1 writes: A team of United Launch Alliance (ULA) interns, working in their spare time, have successfully launched the largest model rocket every built. Space.com reports: "On Sunday (July 24), ULA launched the 50-foot-tall (15.24 meters) Future Heavy rocket out of Fort Carson Army Post, breaking the record for 'the largest sport rocket launched anywhere in the world,' according to a statement from ULA. The Future Heavy is also notable because it was built entirely by company interns and their mentors. 'We like [our interns] to have a very realistic experience,' ULA President and CEO Tory Bruno told Space.com at the Space Symposium meeting in Colorado Springs, Colorado, last April." Calling it a "model rocket" really isn't fair. The thing is big, and really ranks up there with many of the suborbital rockets NASA used to routinely fly out of Wallops Island. [The fact that] ULA has provided support for this effort again suggests that the leadership of Bruno is reshaping the company into a much more innovative and competitive company.

schwit1 writes: In its next launch on Monday, SpaceX will once again try to safely land its first stage on an ocean barge, allowing the reuse of that stage in later flights. "Following first stage separation, thrusters flip the rocket so the engines are pointing in the direction of travel. First, there’s a boostback burn to refine the rocket’s trajectory, causing the rocket to fly through its own exhaust (the space shuttle's risky Return-to-Launch-Site abort scenario relied on a similar maneuver). While the vehicle is still traveling faster than the speed of sound, four grid fins deploy, steering the rocket as it plummets toward the ocean. An entry burn slows the rocket further, and landing legs unfold. A final engine burn settles the Falcon onto [the barge]." Monday afternoon is certainly going to be an exciting day for space cadets. First, at 4 pm (Eastern) the head of ULA will reveal the design of the company's new rocket. Then, at 4:33 pm (Eastern), SpaceX will launch Dragon to ISS while attempting to return the first stage safely.