Space

Four-and-a-half days after launch, NASA's $504 million Lunar Reconnaissance Orbiter fired its main thrusters for 40 minutes early Tuesday, successfully braking into an initially elliptical orbit around the moon.

The critical rocket firing began around 5:47 a.m. EDT and ended as planned at 6:27 a.m., putting the spacecraft into an orbit tilted 30 degrees from the moon's poles with a low point of 136 miles and a high point of 1,926 miles.

"All stations, this is flight," said lead flight director Rick Saylor. "Congratulations on a successful LOI (lunar orbit … Read more

A slight misalignment in the way a vent port on the shuttle Endeavour's external tank was built into the structure is the leading candidate for what caused gaseous hydrogen leaks that derailed two launch attempts June 13 and 17, the shuttle program manager said Friday.

The use of a different type of seal where the vent line attaches to the side of the external tank may resolve the problem, he said. The alternative seal design should provide a tighter fit that is less susceptible to the temperature-induced mechanical shrinkage and motion that can put uneven stress on the interface … Read more

An Atlas 5 rocket thundered to life and streaked into space Thursday, hurling two NASA spacecraft toward the moon for a $583 million mission to scout out landing sites for future manned missions and to search for evidence of hidden ice near its frigid poles.

One spacecraft will map the cratered surface from a perilously low 31-mile-high orbit while the other will blast out 350 tons of pulverized rock and soil for chemical analysis, digging a shallow 66-foot-wide crater in a kamikaze crash visible from Earth.

"First, we want to identify safe landing sites," said project scientist Rich … Read more

After a lengthy fueling delay because of stormy weather, launch of the shuttle Endeavour on a space station mission was scrubbed Wednesday when a presumably repaired hydrogen vent line umbilical began leaking potentially dangerous vapor for the second launch try in a row.

Given the apparent severity of the problem and the planned launch of NASA's Lunar Reconnaissance Orbiter on Thursday or Friday atop an Atlas 5 rocket, Endeavour will be grounded until at least July 11 when the next shuttle/space station launch window opens.

"We've got to step back and try to understand this problem, … Read more

NASA managers Monday formally cleared the shuttle Endeavour for a delayed launch Wednesday on a space station assembly mission. Launch of the agency's Lunar Reconnaissance Orbiter atop an unmanned Atlas 5 rocket was delayed to Thursday or Friday to make room for the shuttle in an effort to maximize launch opportunities for both missions.

Endeavour was grounded Saturday when a gaseous hydrogen vent line umbilical seal leaked potentially dangerous vapor during fueling. Engineers replaced the seal and while the schedule is tight, NASA managers decided Monday to retarget the shuttle for launch at 5:40:50 a.m. EDT … Read more

NASA managers Sunday deferred making a formal decision on whether to reschedule the delayed shuttle Endeavour for launch Wednesday or press ahead instead with launch of the agency's $583 million Lunar Reconnaissance Orbiter mission aboard an unmanned Atlas 5 rocket.

But with both missions facing tight launch windows, Mission Management Team Chairman LeRoy Cain said the agency's preference was to launch Endeavour on Wednesday, if possible, to maximize the number of launch opportunities for both programs.

"If shuttle goes first on the 17th, then the most opportunities we can give LRO is two, and that would be … Read more

MOFFETT FIELD, Calif.--If you're in the planning stages of sending people back to the moon, as NASA is, you'd better know as much as possible about it.

That's one of the reasons NASA launched, in late 2007, the Lunar Science Institute (LSI), an organization with an annual budget of $10 million for the study and research of the moon, as well as the role of supporting and inspiring new generations of lunar scientists.

According to Greg Schmidt, LSI's deputy director, it is a "virtual" institute with a staff of just eight or nine … Read more

Launch of the shuttle Endeavour, grounded by a gaseous hydrogen leak during fueling Saturday, is off until Wednesday at the earliest, NASA officials say. But because of the already planned launch of NASA's Lunar Reconnaissance Orbiter satellite Wednesday, the shuttle team could be delayed to June 20, the last day this month Endeavour can be launched.

Mission managers plan to meet later this weekend to discuss troubleshooting and to assess their options, including negotiations with the Lunar Reconnaissance Orbiter project and the Air Force Eastern Range that provides telemetry and tracking support for all rockets launched from Florida.

"… Read more

Dear readers: I want you. And I want you to stay.

For each of the past three summers, I've spent some time on the road, driving around different regions of the United States, reporting on some of the most interesting destinations I could find, and road-testing some of the coolest gear around. The CNET Road Trip has taken me through 17 states (and one Canadian province) in the Pacific Northwest (2006), the Southwest (2007), and the Southeast (2008).

The trips have been hits, but I have struggled to organically build an audience throughout each journey. Rather, it seems most … Read more