Got into work and totally forgot about the test launch today. Fernando reminded me and I got NASAtv on the computer at about 7:25am. They were holding @ T-4:00 and had aborted the launch once already for wind. They restarted @ about 7:52am and again aborted due to winds over 21 knots. A third time @ 8:26am that aborted @ -3:09 due to several Fill/Drain Vales on first stage booster rockets not closing. The left and center rockets didn’t show closed when commanded to close. The cycled the valves several times the O2 valves checked out fine, but the H2 valves on the left and center booster didn’t check. They aborted launch attempt for today @ 9:39am and are going to recycle for 24 hours.
When Virgin Galactic’s SpaceShipTwo crashed in late October, the company attributed the loss to an unidentified "serious anomaly." Now, thanks to the ongoing investigation by the National Transportation Safety Board, we finally have a clearer picture of what happened 9 miles up in the air that day. According to surviving pilot Peter Siebold, the spacecraft disintegrated around his seat while it was flying at 50,000 feet, almost twice the height of Mt. Everest. The temperature at that altitude is usually below freezing point, around minus 70 degrees Fahrenheit, and any human without an oxygen mask would pass out due to loss of pressure. Since Siebold wasn’t wearing a spacesuit at the time, that’s exactly what happened to him, though he managed to unbuckle his seatbelt at some point before his parachute automatically opened.
A previous NTSB investigation points to the premature unlocking of SpaceShipTwo’s feather re-entry system as one of the possible causes of the crash. Siebold told authorities he wasn’t aware that co-pilot Michael Alsbury, who sadly didn’t survive, unlocked SpaceShipTwo’s feather braking system earlier than intended. This braking/re-entry method turns the spacecraft’s tail upward in order to slow and stabilize its descent. According to the investigation, Alsbury only unlocked the first lever and left the second one untouched, but the winds tore the spacecraft apart anyway.
As for Siebold, an aerospace physiologist called his survival "extremely remarkable." People don’t usually survive such harsh temperature and pressure conditions, and they usually come out of the ordeal permanently damaged when they do.
[Image credit: Getty Images]
Virigin Galactic’s SpaceShipTwo rocket plane exploded and crashed during a test flight on Friday, killing one crew member and seriously injuring another, authorities said.
An Orbital Sciences Corporation Antares rocket fell back to the launch pad shortly after liftoff Tuesday night, exploding in a fireball that destroyed the vehicle and damaged its launch pad. The private spaceflight company confirmed all personnel were accounted for, and no one was injured in the mishap.
Rocket: Falcon 9 v1.1
Payload: SES 8
Launch date:November 28, 2013
Launch time: 5:39 p.m. EST (2239 GMT)
Launch window: 65 minutes
Site: SLC-40, Cape Canaveral, Florida
On July 19, 2013, in an event celebrated the world over, NASA’s Cassini spacecraft slipped into Saturn’s shadow and turned to image the planet, seven of its moons, its inner rings — and, in the background, our home planet, Earth.
SpaceShipTwo fires her rocket motor in flight for the first time in a flight over the Mojave Desert on April 29, 2013.
MarsScientific.com and Clay Center Observatory
Artist’s impression of the first planet discovered orbiting the star Alpha Centauri B, a member of the triple star system that is the closest to Earth. The planet was found in 2012 with the HARPS spectrograph on the 3.6-m telescope at ESO’s La Silla Observatory in Chile.
ESO/L. Calçada/N. Risinger (skysurvey.org)
This image is posted under a Creative Commons Attribution license. You may reuse it for any purpose as long as you include the above credit.
I think I’ve received a dozen emails from people pointing me to a LEGO model of the Curiosity rover at the CUUSOO website. CUUSOO is a website where LEGO modelers can share concepts for kits. The CUUSOO community can vote to support concepts, and if the concept receives 10,000 votes, it goes to a LEGO committee. Each quarter, the committee reviews the supported concepts, and may choose one to actually bring to market as an official LEGO kit.
The full-resolution MARDI images are just as great as we anticipated. As of the moment that I write this, there are 110 full-resolution frames on the ground out of the roughly 1500-image sequence. Most of these are separated in time by several seconds, but among the recently returned data are the first 42 frames, inclusive; we’re on our way to getting the full-resolution movie speaking both in terms of temporal and spatial resolution. Of the first 42 frames, the first 26 are dark, taken before the heat shield separated. This is the 27th. I animated these and the subsequent ones, aligning them all (without rotating them) on a crater at the bottom center of the visible Martian surface, and was really quite amazed at how smooth the descent of the heat shield was. This version is at half the full resolution.
Credit: NASA / JPL / MSSS / Emily Lakdawalla.
produced by Brian Lynch by combining the thumbnail images from Curiosity’s Mars Descent Imager (MARDI) with the audio from the control room during landing night and a detailed timeline from Patrick Blau’s spaceflight101.com.