Wallpaper Wednesday (for Wendy and Daniel)

22 08 2012

NGC 2403.  Image credit: National Astronomical Observatory of Japan (NAOJ), Hubble Legacy Archive, Robert Gendler

Today’s wallpaper , which features the spiral galaxy NCG 2403 in the constellation of the Giraffe (Camelopardalis), is dedicated to Daniel and his family at the Santa Barbara Zoo, particularly the Senior Mammal Keeper.

The composite image of NCG 2403 was created by Robert Gendler, an astrophotographer living in Connecticut. Gendler combined  image data gathered by the Hubble Telescope with images captured by NAOJ’s Subaru Telescope to produce the multi-layered glow of atomic hydrogen gas surrounding the open clusters and dust lanes.

Click on the image to download wallpapers of various standard sizes.





James Webb Telescope

17 08 2012


 
 
 

A year ago, I posted a rather uninspiring wallpaper describing the James Webb Telescope. If you’ve been following the development of the telescope, you’ve probably noticed that some of the terminology has shifted in response to changes made in the instruments.

For the past ten months, the mission team has been offering a “behind the scenes” look at the instruments and their performance at various testing sites via video podcast. Everything you ever wanted to know about mirrors in space—watch the videos and you will never need to ask another question on the subject.

The most recent video veers away from the subject of the telescope’s mirrors to talk about the “dynamic duo,” the paired instrument consisting of the Fine Guidance Sensor (FGS) and the Near-Infrared Imager and Slitless Spectrograph (NIRISS) instrument. It seems like an odd combination: the FGS is a guide camera responsible for the fine adjustments in the telescope’s guidance system, while the NIRISS is a four-way instrument that works as an imager, spectroscope/-graph, and interferometer. The FGS and NIRISS operate independently, but as the video linked above indicates, the NIRISS can take over some guidance functions, adding another level of redundancy to the instrument in case something goes wrong with the FGS.

Also: thank you, Canada.





Wallpaper Wednesday

16 08 2012

Endeavour’s Close Up. Photo credit: NASA

Today (August 16, 2012—I know, a day late with the wallpaper) Endeavour and Atlantis are switching places. By the time you read this, Endeavour will have backed out of Orbiter Processing Facility (OPF) 2, Atlantis will have rolled out of the VAB, and the press will have taken tons of photos of the two spacecraft as they came nose-to-nose for one last time (check out Kennedy Space Center’s twitter feed for some sweet images of the moment). Endeavour will now move into the VAB and remain there until its September flight to Los Angeles. Atlantis will be in OPF-2 until it moves to the Kennedy Space Center Visitor Complex in November. I hope to see you all at the grand opening of the KSCVC Atlantis exhibition in July 2013.

Click on Endeavour’s starboard wing to download wallpaper.





These are mine.

14 08 2012

Saturday Evening Post, July/August 1976

LIFE, August 22, 1969

On Saturday, I managed ten minutes of shopping at the local antique mall before getting sick. Luckily, they were ten very productive minutes. In the first booth I stopped at (okay, at which I stopped), I found two bits of space history: a 1976 edition of The Saturday Evening Post with an article promoting the Shuttle program and a 1969 issue of LIFE magazine with an article following up on the first lunar landing.

I planned to scan the articles but soon realized I’d have to break the spines to get the magazines to lie flat on the scanner bed. The article on the Space Shuttle is particularly intriguing, so I may transcribe it at a later date. The illustrations capture the essence of the Shuttle program—the solid rocket boosters, external tank, Canadarm, are all there—yet everything looks just slightly off.

The Saturday Evening Post, July/August 1976, pp. 60-1

The most interesting part of the LIFE article is the appended editorial agitating for “a sensible post-Apollo 11 program.” The unnamed author argues that Nixon should decline to sign “the sort of blank check for an all-out manned Mars landing that vocal space agency partisans are urging on him.” Rather than set our sights on Mars, we should focus on higher priorities: completion of the Apollo program; unmanned probes in space; development of new scientific earth satellites; and a manned orbiting laboratory. The completion of these projects “would gather basic scientific knowledge of space. Our main business now should be to consolidate Apollo 11’s ‘giant leap for mankind’ by harvesting and adding to the knowledge it has unlocked. This goal is consistent with a reasonable NASA budget, and with the existing challenge set by John Kennedy: to learn “to sail on this new ocean.” (p. 30)

I’m guessing that LIFE‘s call for a “reasonable NASA budget” has something to do with U.S. military expenditures in 1969.[1] However, that would mean the editorial board didn’t consider the military potential for those “new scientific earth satellites.” Or, it could be that they understood the military applications of a satellite quite well, but hoped to either squelch the program with a reduction of funding or slide it by the reading public in the guise of “seeking scientific knowledge.” I’m just speculating, of course, but the editorial seems rather lukewarm about the space program, given that only two months had passed since the first lunar landing.

————————

[1] See the United States Arms Control and Disarmament Agency’s report World Military Expenditures 1969 for some shocking figures on North American military spending in the 1960s.

 





The Morning After

12 08 2012





And…we are go for liftoff.

10 08 2012

Endeavour at the VAB, Kennedy Space Center. Photo credit: C. A. Johnson-Roehr

I’ve returned to this post to add the above photo, which was taken by my partner during the #MSL #NASATweetup last November. That’s the Space Shuttle Endeavour during decommissioning. Over a period of several months, every Shuttle went through a decontamination process, with some toxic elements shipped offsite for remediation. During the same time period, NASA harvested select components, like the orbital maneuvering system (OMS) pods and the main engines, for potential re-use in next-generation spacecraft. While we were at Kennedy Space Center for the MSL launch, we were fortunate to be escorted into the VAB for an up-close and personal look at Endeavour right after the OMS and Forward Reaction Control System (FRCS) came out. I’d show you more views of Endeavour in the VAB, but apparently my partner and I were both too busy staring and saying things like, “Oh my god, it’s RIGHT THERE!” to take photos.

I won’t make that mistake the next time I see Endeavour. And I will see Endeavour again. I just purchased a plane ticket to Los Angeles and while I’m going to be doing some “real work” while I’m there, I’m planning on walking/running as much of the twelve mile route between LAX and the California Science Center as the people in charge of move will allow. I’ve got plans to go up to Mount Wilson Observatory while I’m in the area as well, so this page should be overflowing with photos and commentary come the middle of October. Fun times ahead!





Proof of House Moving

9 08 2012

Heading south on N. Dunn Street. Photo credit: JR

Let’s hope they don’t have to cut the top off Endeavour in order to clear the power lines of Inglewood.





Road Trip

8 08 2012

Endeavour’s Route Across Los Angeles and Inglewood

I’ve written before about the dispersal of the Space Shuttle fleet around the United States (see earlier posts here and here) and promised to return to the topic when I knew more about Endeavour’s arrival in Los Angeles. The California Science Center just released the map showing the route the Shuttle will take on surface streets between LAX and the museum, which is located just across Exposition Boulevard from USC.

I’m super excited by the prospect of the move. I volunteer for an affordable housing program that moves historic houses across town every so often; in fact, we’re moving a house tomorrow, an expensive and complicated task. If the move is scheduled for a weekday, it needs to happen when it won’t conflict with peak commuting hours (the house rolls at 9 a.m. tomorrow). A house on a flatbed is a relatively tall object and a few power lines always need to come down along the route. It costs something like $10,000 to cut and reconnect a power line in our county, so the organization always searches for the least “wired” route through town.

Now, imagine moving a spacecraft in Los Angeles, the high-density-traffic capital of the world. There’s a reason the move starts in the middle of the night on October 12 (formal ceremonies are the morning of October 13 at Inglewood City Hall). The route crosses the 405, not a place you want to be during rush hour on a weekday. Ironically, it sounds like a few trees along the route may pose the greatest challenge to the mission’s success. Transport will take all day, so there will be plenty of time to get your space geek on.

I’m trying to decide if I can justify making a trip to Los Angeles to witness the transfer in person. I’m a little attached to Endeavour—I was lucky enough to see it in the VAB at Kennedy Space Center during its decommissioning—and I’d like to see at least one Space Shuttle make its final journey. I’m sure you’ll read about it here if I can make the trip happen for me.





Wallpaper Wednesday

8 08 2012

Lovell Telescope under repair, Jodrell Bank Centre for Astrophysics

Today’s wallpaper commemorates the career of Bernard Lovell, pioneer of radio astronomy. Click on the image to reach the download page.





Sir Bernard Lovell OBE FRS (b. 1913-d. 2012)

7 08 2012

Sir Bernard Lovell with Russian astrophysicist Prof. Alla Massevitch at Jodrell Bank

Bernard Lovell, founder of Jodrell Bank, died yesterday, August 6, 2012, at the age of 98. Please visit the Jodrell Bank Centre for Astrophysics website for his obituary, an online book of condolence, links to audio and viedo interviews, and links to his 1958 BBC Reith Lectures. Click here for a few images and my post on the 76-meter Mark I (Lovell) Telescope.








Observatories and Instruments