Discovery’s launch is postponed until no sooner than November 30
Discovery’s launch is now officially postponed until no sooner than November 30.
Tag: engineering
The first images of Deep Impact’s flyby of Comet Hartley 2
Here are the first images of Deep Impact’s flyby of Comet Hartley 2. The first is a montage, the sequence in time going clockwise. The second is a close-up of the second image.
The feature that I find most intriguing is the narrow smooth waist of the comet’s dogbone shape. The whole thing looks almost like a piece of taffy that’s being pulled apart.
Burt Rutan retiring
It isn’t the first time he’s said it, but Burt Rutan, designer of SpaceShipOne, says he is retiring from Scaled Composites.
Discovery launch scrubbed due to hydrogen leak
Discovery’s launch is scrubbed again, this time due to another hydrogen leak. Next possible launch date is Monday, which means it is possible the launch will be delayed until early December.
An Early Warning System for Asteroid Impact
In a paper posted tonight on the Los Alamos astro-ph website, an astronomer is proposing an early warning system for asteroid impact. Key quote from the abstract:
This system, dubbed “Asteroid Terrestrial-impact Last Alert System” (ATLAS), comprises two observatories separated by about 100km that simultaneously scan the visible sky twice a night, and can be implemented immediately for relatively low cost. The sensitivity of ATLAS permits detection of 140m asteroids (100 Mton impact energy) three weeks before impact, and 50m asteroids a week before arrival. An ATLAS alarm, augmented by other observations, should result in a determination of impact location and time that is accurate to a few kilometers and a few seconds.
More info on Deep Impact flyby of Comet Hartley 2
First close-up photos of Comet Hartley 2 reveal a space peanut.
Watching the Deep Impact flyby of Hartley 2
Watch the Deep Impact flyby of Hartley 2 this instant (11:06 AM eastern)! The images are incredible. Update: The fly-by is over, but the live stream is still available (as of 11:30 am Eastern), showing some of the images taken. The comet itself is a peanut-shaped object about two miles long, with a jet of water coming out one end.
Electrical problem on Discovery could delay launch
An electrical problem on the space shuttle Discovery could delay tomorrow’s launch. Update: NASA has decided to definitely delay the launch until Thursday, at the earliest.
Overhaul of NASA’s Deep Space communication system completed
NASA has completed a significant upgrade of its Deep Space communication system. These unheralded antennas and the engineers who maintain them make it possible for scientists to communicate with the far flung planetary probes in orbit around Venus, Mars, and Saturn, as well as the spacecraft visiting comets or traveling beyond the edge of the solar system.
Shuttle launch now set for Wednesday
The last launch of the space shuttle Discovery has been moved to Wednesday afternoon in order to give engineers time to test their repairs.
The suborbital commercial industry responds to smog accusations
The commercial suborbital industry responds to the recent science paper that said that the soot from their rocket engines might cause to global warming.
SpaceShipTwo completes second free flight test
Yesterday SpaceShipTwo completed its second successful free flight (via Clark Lindsey at www.rlvnews.com). The results:
Flew to more aggressive stall indication. Evaluated handling and stability through several maneuvers. Expanded envelope to 230 KTAS and 3g’s. Roll evaluation. Full stop landing.