Cap'n Bob & the Damsel

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Hubble Back in Operation

Since the James Webb Space Telescope is a ways off, I’m delighted to see the engineers get the Hubble Space Telescope back in operation.

From NASA:

NASA Issues Hubble Space Telescope Status Report

NASA engineers successfully activated the Advanced Camera for Surveys at 9:12 a.m. EDT Friday aboard the agency’s Hubble Space Telescope. Checkout was completed at 10:20 a.m. EDT with science observations scheduled to resume Sunday, July 2.

“This is the best possible news,” said Ed Ruitberg, deputy associate director for the Astrophysics Division at NASA’s Goddard Space Flight Center, Greenbelt, Md. “We were confident we could work through the camera issue, and now we can get back to doing more incredible science with the camera.”

Engineers began uploading commands to the instrument Thursday, June 29, in an effort to restore operational status. A pre-programmed observing timeline for normal camera science operations will begin executing at approximately 8 p.m. EDT on July 2.

Engineers received indications on Monday, June 19, that power supply voltages were out of acceptable limits, causing the camera to stop functioning. The instrument was taken off line, so engineers could study the problem and determine the appropriate remedy. Hubble observations continued using other onboard science instruments.

The third-generation Hubble instrument consists of three electronic cameras, filters and dispersers that detect light from the ultraviolet to the near infrared. Astronauts installed the camera during a servicing mission in March 2002. It was developed jointly by Goddard, Johns Hopkins University, Baltimore; Ball Aerospace, Boulder, Colo.; and the Space Telescope Science Institute, Baltimore.

For information about the Hubble Space Telescope, visit:

http://www.nasa.gov/hubble

About the James Webb Space Telescope:

The James Webb Space Telescope (JWST) is a large, infrared-optimized space telescope, scheduled for launch in 2013. JWST will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy. JWST will peer through dusty clouds to see stars forming planetary systems, connecting the Milky Way to our own Solar System. JWST’s instruments will be designed to work primarily in the infrared range of the electromagnetic spectrum, with some capability in the visible range.

JWST will have a large mirror, 6.5 meters (21.3 feet) in diameter and a sunshield the size of a tennis court. Both the mirror and sunshade won’t fit onto the rocket fully open, so both will fold up and open only once JWST is in outer space. JWST will reside in an orbit about 1.5 million km (1 million miles) from the Earth.

JWST will orbit the L2 Lagrange Point, in the vicinity of the WMAP probe we blogged about yesterday.

01 Jul 2006 by Astronomy Rocket Science Technobabble

Back to the Bang

Scientists believe the Big Bang occurred because of an observed “cosmological background radiation” seen in all directions from the vantage point of Earth. Since June, 2001, a space-based instrumented observation platform called the Wilkinson Microwave Anisotropy Probe (WMAP) has been collecting data that allows scientists to literally look back in time and space to virtually witness the birth of the universe.

In the video below, you will see a journey back through space/time starting from the WMAP probe in it’s orbit and continuing outward past Mars, the Asteroid Belt, Jupiter, Saturn, through the Oort cloud and into interstellar space. The journey continues through a “local” nebula in Orion and thence out of the Milky Way and past thousands of galaxies back into the time of primordial blue giant stars and ultimately past the “dark ages” and into the afterglow of the Big Bang. Then, brilliant light and, finally, darkness at “before the beginning of time.”

Please take this thrilling journey back to the beginning of time: (press to play)

Video courtesy NASA’s WMAP website
Audio — “Visions” from Distant Spirits — Scott August

Some history about WMAP:

WMAP was launched on June 30, 2001 from the Cape Canaveral Air Force Base aboard a Delta II rocket.

WMAP completed its prime 2 years of mission operations in its L2 orbit by September 2003. Meanwhile, the 2002 and 2004 Astronomy and Physics Senior Review granted WMAP mission extensions, endorsing the proposed 8-years of mission operations, to end September 2009.

In February 2003 the WMAP Team released a set of 13 papers (241 journal pages) along with flight data from the first year of observations of the CMB. In March 2006, the WMAP Team released 3-year data, including full polarization data, and papers describing the data processing, systematic error analyses, calibration, and other critical aspects of the experiment.

And, finally, a schematic diagram of the trip you just took back over more than thirteen and a half billion years in about a minute!

Schematic of the cosmic chronology

Images and video courtesy of NASA

30 Jun 2006 by Astronomy Rocket Science Technobabble

Spouting More Hot Air than Al Gore

Who are Al Gore and his enviroloons going to blame for this reckless discharge of greenhouse gasses?

From Astronomy Picture of the Day:

An Alaskan Volcano Erupts

What is happening to that volcano? It’s erupting! The first person to note that the Aleutian Cleveland Volcano was spewing ash was astronaut Jeffrey N. Williams aboard the International Space Station. Looking down on the Alaskan Aleutian Islands two weeks ago, Williams noted, photographed, and reported a spectacular ash plume emanating from the Cleveland Volcano. Starting just before this image was taken, the Cleveland Volcano underwent a short eruption lasting only about two hours. The Cleveland stratovolcano is one of the most active in the Aleutian Island chain. The volcano is fueled by magma displaced by the subduction of the northwest-moving tectonic Pacific Plate under the tectonic North America Plate.

Image and story courtesy NASA and APOD

07 Jun 2006 by Aerospace Environment Global Warming Rocket Science

Huge 4th of July Display — on Jupiter!

And, on an astronomical scale, it IS huge! We reported in a previous article, See Spot Run about the two red spots on Jupiter, Great Red and Red, Jr. Time to get the backyard telescope out and get it tuned up for this!

NASA – Huge Storms Converge

June 5, 2006: The two biggest storms in the solar system are about to go bump in the night, in plain view of backyard telescopes.

Storm #1 is the Great Red Spot, twice as wide as Earth itself, with winds blowing 350 mph. The behemoth has been spinning around Jupiter for hundreds of years.

Storm #2 is Oval BA, also known as “Red Jr.,” a youngster of a storm only six years old. Compared to the Great Red Spot, Red Jr. is half-sized, able to swallow Earth merely once, but it blows just as hard as its older cousin.

[more]

05 Jun 2006 by Astronomy Rocket Science

Droids in Space

I’m sure there is a purpose in all this besides a science project . . .

NASA – Droids on the ISS

Six years ago, MIT engineering Professor David Miller showed the movie Star Wars to his students on their first day of class. There’s a scene Miller is particularly fond of, the one where Luke Skywalker spars with a floating battle droid. Miller stood up and pointed: “I want you to build me some of those.”

So they did. With support from the Department of Defense and NASA, Miller’s undergraduates built five working droids. And now, one of them is onboard the International Space Station (ISS).

Inset image: MIT undergrads flight-test a prototype droid onboard NASA’s KC-135 reduced gravity aircraft.

[Read More]

Didn’t NASA Astronauts refer to the reduced gravity aircraft as the “vomit comet?”

02 Jun 2006 by Aerospace Rocket Science

Toto, We’re not in Barstow Anymore

Finally! The Mars Rover “Opportunity” returned an image of the Martian Landscape that doesn’t look like it was taken in the Mojave Desert. The eerie textures and coloring lend an other-worldliness appearance to this image, unlike the images that comedian Dennis Miller asserts “Looks like Barstow!”

Photo Courtesy NASA/JPL-Caltech

Click here for a Larger Image.

As NASA’s Mars Exploration Rover Opportunity continues to traverse from “Erebus Crater” toward “Victoria Crater,” the rover navigates along exposures of bedrock between large, wind-blown ripples. Along the way, scientists have been studying fields of cobbles that sometimes appear on trough floors between ripples.

They have also been studying the banding patterns seen in large ripples.This view, obtained by Opportunity’s panoramic camera on the rover’s 802nd Martian day (sol) of exploration (April 27, 2006), is a mosaic spanning about 30 degrees. It shows a field of cobbles nestled among wind-driven ripples that are about 20 centimeters (8 inches) high.

This is a false-color rendering that combines separate images taken through the panoramic camera’s 753-nanometer, 535-nanometer and 432-nanometer filters. The false color is used to enhance differences between types of materials in the rocks and soil.

OK — I admit that this is a “false color” image and isn’t representative of the natural sunlight on Mars, but if you were to pump sunlight up to the amount the Earth gets, you just might get a picture like this.

25 May 2006 by Aerospace Astronomy Rocket Science Technobabble

The Sky is NOT Falling – Yet

NASA – NASA Satellites Observe Comet’s Trail

There will be no tsunamis, firestorms or mass extinctions to spoil your Memorial Day weekend.

Image right:This infrared image from NASA’s Spitzer Space Telescope shows the broken Comet skimming along a trail of debris left during its multiple trips around the sun. On the lower right lies the Ring Nebula, coincidentally in the same direction as the cometary fragment.

Despite speculation that Comet 73P/Schwassmann-Wachmann 3 will strike the Earth on May 25, neither the main comet nor any of its more than 40 fragments pose a danger to Earth.

“We are very well acquainted with the trajectory of Comet 73P Schwassmann-Wachmann 3,” said Donald Yeomans, manager of NASA’s Near-Earth Object Program Office. “There is absolutely no danger to people on the ground or the inhabitants of the International Space Station, as the main body of the object and any pieces from the breakup will pass many millions of miles beyond the Earth.”

However, you can see the comet falling apart right before your very eyes, thanks to NASA’s Hubble Space Telescope, Swift X-Ray and Spitzer Space Telescope.

Click on the Space Rocks page for an animated preview of the next large comet impact.

14 May 2006 by Astronomy Environment Rocket Science

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