July 14, 2002
Japan's SST Prototype Bites the Dust In Test Flight
A Japanese rocket-powered test vehicle meant to help build a next-generation
supersonic transport (SST) crashed into
Australian desert July 14.
Built by the National Aerospace Laboratory (NAL) of Tokyo, Japan, the SST prototype flew all of 10 seconds, then went into a wild spiral before crashing into the ground. The device was slated to fly for some 12 minutes, rocketing to high altitude, then parachute to the ground.
The unpiloted, rocket-boosted device was test fired from a remote launch range in South Australia.
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The NAL of Tokyo, Japan conducted the flight experiment under cooperative agreement with the Australian government. The sub-scale plane is a mini-version of a proposed 300-seat SST that incorporates cutting-edge technology. The Japanese group has been hard a work on the supersonic plane effort since the mid-1990s.
A team of experts has begun analyzing cause of the multi-million dollar failure.
NAL officials plan a trio of follow-on scale model flights this year into 2003 from the Woomera rocket range, one of the largest test areas in the world.
Got any space science and human
spaceflight news and tidbits? Send them to Leonard
David .
July 12, 2002
Undersea Launch for Outerspace Craft
The Russian Northern Fleet's nuclear-powered submarine Ryazan, commanded by Capt. Tagir Kayaev, launched a Demonstrator-2 spacecraft from beneath the surface of the water, Capt. Igor Dygalo, head of the Russian Navy's press service, told Interfax Friday.
The spacecraft, which has an inflatable braking system is intended to deliver cargo from space orbit and is capable of landing on other planets.
Ex-Astronaut Nominated for Number 2 NASA Post
CAPE CANAVERAL, Fla. (AP) - The White House has formally nominated Frederick Gregory, a former space shuttle commander, for the No. 2 job at NASA.
NASA Administrator Sean O'Keefe said Thursday that the White House has officially presented Gregory's nomination to the Senate, to serve as deputy administrator. If confirmed by the Senate, Gregory will report directly to O'Keefe and handle day-to-day operations of the space agency.
Gregory, 61, has served as NASA's space flight chief since December. He previously headed NASA's safety office and was a three-time space flier.
A former Air Force combat pilot, Gregory was selected as an astronaut in 1978.
In March, the White House withdrew its nomination of Marine Maj. Gen. Charles Bolden for the deputy administrator position because of the desire to keep him in his military job during the war against terrorism. Bolden is also a former shuttle commander.
Asteroid Search a Matter of International Defense
A handful of asteroid experts met the other day in a Senate office for an unofficial roundtable discussion on the search for and defense against potentially threatening asteroids. In a
SPACE.com article about the meeting, U.S. Air Force Brig. Gen. S. Pete Worden -- speaking on behalf of himself -- said the
military ought to be pressed into service rather than leaving the task to
scientists alone.
Now this, from another of the participants, Brian Marsden, a scientist at the Minor Planet Center, whose comments come upon reflection on the roundtable: "As time goes by, I incline more and more to the view that to tackle the NEO [Near Earth Object] problem is more one of defense -- international defense -- than one of science." Marsden has a unique vantagepoint -- he and a tiny staff sag under the weight of an increasing pace of discovery which
he fears they won't be able to keep up with.
Other scientists -- a vocal camp of the NEO community -- have long argued that governments must spend more to find asteroids, including relatively small ones, that could threaten Earth, while simultaneously developing methods (such as space-based missiles or strategically located nuclear bombs)
to destroy or deflect incoming rocks. Marsden's
comments were posted today on CCNet, a scholarly electronic
newsletter.
You Think You Hate Wearing a Suit
"When you are wearing one of these suits you cannot hear anything more than a few feet away, you cannot smell anything outside the suit, you cannot touch anything except through thick ski gloves. Communication over any distance must be done by suit radio, and the wearers are so enclosed that an electrical fan system is required to supply the user with air."
-- Robert Zubrin yesterday from the Flashline Mars Arctic Research Station, where he and other crew members were preparing for their first EVA in a simulated Mars mission. More
here.
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The SPACE.com Mailbag ... Planets Around Alpha Centauri?
From Andrew to Robert Roy Britt:
With the
development of planet-hunting techniques is it possible to make any statements about the Alpha
Centauri system, our closest, and its likelihood of planets? For example, is it
possible to rule out any very large planets with highly eccentric orbits around
the binary system?
Robert Roy Britt replies: As you knew, Andrew, Alpha Centauri A and B are just 4.3 light-years away, the closest known star system. They orbit each other in a gravitational embrace. There's no reason the stars could not individually harbor one or more planets (though I've never heard any theories suggesting a planet would orbit both stars). In fact, the new camera on the Hubble Space Telescope will likely spend some time next year looking for a Jupiter-mass planet around Alpha Centauri A, the larger of the two and a star that's similar to our Sun. David Golimowski, a research scientist at Johns Hopkins University, told us recently that
the effort would be a real long shot. But if his team succeeds, they
would produce the first actual photo of a planet around another
star.
July 11, 2002
Citizens Tell Congress: Pluto or Bust
Americans are about to tell Washington they agree with a NASA-commissioned
study recommending the space agency go to Pluto. "We are sending
a letter to Congress signed by thousands of people from every Congressional
district in the U.S. asking for restoration of the funding for the Pluto and
Europa missions," said Louis Friedman, Executive Director of The Planetary
Society. Congress would need to override a NASA decision that has put the Pluto
mission, slated for a 2006 launch, on hold indefinitely.
While the
report covers other missions and projects, few destinations draw
the emotional support of Pluto, a hapless little frozen world that some say
isn't even a planet, a place that's never been visited by humans or anything
they've built. Some researches argue that it's imperative to go to Pluto soon,
before its long orbit takes it so far from the Sun that any possible traces of
an atmosphere freeze out.
"The Pluto/Kuiper Belt mission is the best opportunity for exploration of these objects for decades, if not centuries," said Friedman. "If the Pluto mission is delayed, costs will rise and other missions, including the Europa orbiter, will also be delayed."
Job Posting: Ambassador of Saturn
With the Cassini spacecraft due to arrive at Saturn in 2004, NASA is gearing up for a public relations effort designed to bring the ringed planet -- the agency has decided it is "the most beautiful planet of all" -- into more back yards. Astronomers with reasonable knowledge of the planet and the mission, and access to a telescope, are invited to apply to be ambassadors of a sort in the Saturn Observation Campaign.
You'd help drum up support for the planet (perhaps it is lagging in the polls behind Mars and Pluto?) and plan local events. A cynic would say it's your chance to do NASA's footwork. We figure if it educates and entertains, then what the heck; it is an awfully pretty planet that a whole lot of folks have never seen through a telescope. If you've got what it takes, apply
here.
NASA and NIMA Share the Wealth of Mapping Mission
NASA and the National Imagery and Mapping Agency (NIMA), partners in the
2000 Shuttle Radar Topography Mission, agreed this week on a
policy to provide 90-meter (295-foot) resolution digital-elevation mission data
from sites outside the United States to qualified researchers.
Selected data will simultaneously become available to the public. The two agencies also this week made public the mission's research-quality 30-meter (98-foot) resolution topographic data for the entire continental United States.
Shuttle Radar Topography Mission data are being processed at NASA's Jet Propulsion Laboratory (JPL), Pasadena, Calif., into research-quality digital-elevation models one continent at a time. When each continent is completed, the data will be sent to NIMA for additional finishing and then to the U.S. Geological Survey's Earth Resources Observation Systems Data Center in Sioux Falls, S.D., for final archiving and distribution.
From the SPACE.com Mailbag
From Robert to Jim Banke:
Did the recovery of the
Liberty Bell Seven determine what caused the hatch to blow?
Jim Banke replies: The short answer is no.
The longer answer is that there was no evidence from the recovery that proved anything either way, except there was a missing spacecraft shingle. Folks are fairly sure this was the cause of an observed rip in the parachute. The shingle was the cover to a plunger that would allow the hatch to be blown by someone on the outside.
Pad leader Guenter Wendt has long theorized that because that panel fell off, the plunger inside was warmed by the heat of the capsule's skin from re-entry. When it splashed down, the seawater cooled the device and that change in temperature caused the hardware to shrink enough where the slight movement mechanically triggered the hatch release circuit.
That's the best theory I've heard and, again, the recovery did nothing to dispute that idea.
Got NASA, aerospace or
other launch-related dish? Drop
Jim Banke an e-mail.
July 10, 2002
Finding Casts Doubt on Age of Universe
The universe's age is generally put at between 12 billion and 15 billion years, depending on who does the figuring. But news today from Europe suggests that accuracy might not even be found within those bounds.
Astronomers peering at a distant object that is thought to be 13.5 billion years old say it contains way too much iron, implying that the universe may be older than current theory predicts. The object, a very bright galaxy called a quasar, produces X-rays when its central black hole gobbles matter. Using the XMM-Newton satellite, the European Space Agency's Norbert Schartel and colleagues studied the X-rays and learned the quasar, APM 8279+5255, contains concentrations of iron three times higher than in our solar system.
Thing is, iron is forged in exploding stars and thought to build over time. Our solar system, which is only about 5 billion years old, ought to have the higher concentrations, since it was created out of material that had gone through more stellar life cycles.
What's going on? Could be that the way astronomers measure the age and distance of objects -- a complex thing called redshift -- is all wrong, says Fred Jansen, an XMM-Newton scientist. Or, Jansen said, somewhere in the early universe there might be undiscovered iron factories producing the metal by unknown physical means. "This is the less likely solution in my opinion," he said. A paper on the work is published in the July 10 issue of Astrophysical Journal Letters.
It's the Little Things That Cost You
A Tulsa-based company has been ordered to pay more than $300,000 in fines and restitution for lying about the welding jobs it did on three tiny parts it supplied for the International Space Station and a government spy plane.
Copeland Manufacturing Corp. admitted it lied about the certification of two titanium fittings it fixed for a Tier II Plus Global Hawk unmanned aircraft. It also said an aluminum battery guide for the ISS had been falsely certified. A grand jury indictment in April 2000 held that the parts were repaired with unapproved welds. In a previous plea, criminal charges against the company were dropped. A federal judge issued the financial penalty yesterday.
Another Mid-Sized Extrasolar Planet Found
Many of the roughly 100 extrasolar planets that have been found circling other stars have been gargantuan. Most are heavier than Jupiter. But lately, some lighter planets have been spotted, including one that's just 40 times the mass of Earth,
announced in June.
Now another mid-sized planet has been detected. This one is less massive than Saturn, one of only a handful so light. But you wouldn't want to visit. The planet orbits very close to its host star, HD 76700, zipping around it every 4 days. The world was found using the Anglo-Australian Observatory. [
The latest on the overall exoplanet tally]
NASA Selects Two New Earth-Monitoring Missions
The first space missions were highly focused: Leave Earth; orbit the planet. Then projects became complex: Take men to the Moon; land a robot on Mars and send pictures back. Lately, NASA has gone back to its roots in creating highly specialized, somewhat low-cost missions for devoted tasks, including two new satellites approved yesterday.
The Orbiting Carbon Observatory will measure atmospheric carbon dioxide around the globe in an effort to better understand whether and how humans contribute to global warming. Aquarius will provide the first-ever global maps of salt concentration on the ocean surface, a key to understanding the oceans' capacity to store and transport heat, which in turn affects Earth’s climate and the water cycle.
The $175 missions, part of NASA's Pathfinder small-satellite program, were selected from 18 proposals and will go into full planning about 9 months from now. No launch dates were announced.
From the SPACE.com Mailbag
From Ken to Robert Roy Britt:
While I enjoyed the
article on the new theory about how the planets Neptune and Uranus formed, one thing
bothered me. Several times in the story you said or implied that the Orion
region was where the Sun came from, and that's simply not the case. Not only is
the Orion region too young to have had any role in our own solar system's birth,
but we've been orbiting the galaxy for a few billion years and don't have a clue
which particular region we formed in, which may have evaporated away in any
case. The Orion nebula is merely representative of typical star forming
regions.
Reply to Ken: Sorry for the confusion. You're completely right. We don't know where in the galaxy our solar system began [I wrote about that in
this May 28 story, which also explains how there might be limited habitable places in the Milky Way]. Before answering you, I checked with Alan Boss, the author of the new disk instability theory for Uranus and Neptune, for
a final word on your concern: "Orion is merely a proxy for the type of massive
star forming region that may have existed 4.5 billion years ago that might have
formed the solar system," Boss says.
Mini Astronotes: Today is the 40th anniversary of the launch of Telstar-1 ... Ten years ago today, the Giotto spacecraft flew by comet Grigg-Skjellerup ... Astronaut Gene Cernan says he'll stop accepting autograph requests through the mail, which had
overwhelmed him.
July 9, 2002
Plesetsk Cosmodrome Work Continues
According to the Russian Interfax news agency, the Russian Defense Ministry is quickly developing the Plesetsk cosmodrome in the Arkhangelsk region.
"The president has instructed us to transfer all launches from the Baikonur cosmodrome in Kazakhstan to Plesetsk," Deputy Defense Minister and Head of Construction and Troops Quartering Alexander Kosovan told journalists in Moscow on Tuesday. All rockets, including heavy Angara rockets, but not including manned spaceships, will be launched from Plesetsk, the general said.
The decision to move military launches was made in
April this year.
Air Apparent - Rocket Prototype Reaches Milestone
A prototype for an innovative NASA air-breathing rocket engine reached a major milestone last week, three months earlier than originally planned. Dubbed "ARGO" by its design team, the engine is named for the mythological Greek ship that bore Jason and the Argonauts on their epic voyage of discovery.
ARGO"s design team completed its first major engine systems requirements review -- an exhaustive examination of the engine's design and performance parameters in record time. The engine's unique engine design allows it to function as a rocket, ramjet and scramjet. Key among its technical advantages: the ability to use air as an oxidizer. Compared to conventionally powered rocket vehicles, this technology will significantly reduce vehicle weight by eliminating a significant amount of its required on-board oxidizer.
The rocket is the offspring of a veritable orgy of aerospace stalwarts: the Rocketdyne Propulsion & Power business of The Boeing Co., the Pratt & Whitney space propulsion business unit of United Technologies Corp. and the Aerojet missile and space propulsion business unit of GenCorp, Inc. Keep the cigars handy, fellas. Looks like you've got a winner on your hands.
From the SPACE.com Mailbag
From Patrick to Robert Roy Britt:
I was reading your
article 7/1/02 regarding the recent flurry of planet discoveries and
theinterview with Debra Fischer. I would like to congratulate you and the site SPACE.com on another good piece. My query
is about where a complete list of extrasolar planets discovered could be
obtained.
Robert Roy Britt replies: There are two catalogues of extrasolar planets worth perusing. Fischer's team (led by Marcy & Butler) keeps a list
here. French researcher Jean Schneider maintains the Extrasolar Planet Catalogue; note that it contains all planet candidates that have been announced, including some that haven't been reviewed and may turn out to not be planets at all. See also our more recent story on the tally, in which we learn that the IAU may soon take
responsibility for creating an official catalogue.
Peer review take too long? Send your space science and astronomy news to
Robert Roy Britt via e-mail.
Old UFO Gets New Lease on Life
The Boeing communications satellite, UHF Follow-On (UFO) F-2, launched nine years ago and formerly used as an in-orbit spare, has a new mission providing critical military communications capacity for U.S. forces in Operation Enduring Freedom.
The spacecraft is the oldest active UFO satellite built by Boeing Space and Communications for the Navy's Space and Naval Warfare Systems Command (SPAWAR) in San Diego. Launched in September 1993 and stationed over Africa, UFO F-2 was an on-orbit spare for the UFO constellation. It now provides nine additional channels of vital voice and data communications capacity to U.S. forces in the Afghanistan region.
July 8, 2002
Silent Star Was Shouting All Along
For a stretch of 32 months back in the mid-1990s, a fast-spinning pulsar that had been regularly emitting strong pulses of X-rays went off astronomers' radar. For years, they assumed the pulsar, a dense remnant of a supernova explosion that emits X-rays when it feeds off a companion star, had stopped eating.
New analysis of old data shows that instead, the pulsar was simply outshone by a black hole that happened to be in the same part of the sky and had become more active during the period, NASA astrophysicist Colleen Wilson-Hodge told SPACE.com. Wilson-Hodge and her colleagues used data collected by the Compton Gamma Ray Observatory. They developed a new technique to distinguish the signals of the more massive black hole, called Cygnus X-1, and the pulsar, named EXO 2030+375. The results were reported in the May 1 issue of the Astrophysical Journal and announced by NASA today.
United Kingdom Joins Europe's Premiere Stargazing Club
Next thing you know, they'll adopt the euro. OK, maybe not, but Britain has agreed to fork over $152 million (that's about 155 million euros) in the next decade in return for access to the European Southern Observatory's (ESO) heavy-duty celestial-gazing hardware.
According to the ESO website, "UK astronomers will now be able to use the four 8.2-metre and several 1.8-metre telescopes that comprise the Very Large Telescope (VLT) facility located at the Paranal Observatory in the northern part of the Atacama desert in Chile, as well as two 4-m class telescopes and several smaller ones at the ESO La Silla Observatory further south. The UK will also benefit from increased involvement in the design and construction of the Atacama Large Millimetre Array (ALMA), a network of 64 twelve-metre telescopes also sited in Chile, and play a defining role in ESO's 100-metre Overwhelmingly Large Telescope (OWL)."
Shuttle Fleet Cools its Jets
The news from the Kennedy Space Center is that NASA managers will not make any decisions on when the next shuttle will fly until after inspections are complete on Endeavour. Its three main engines have to be removed before the inspections can begin on the propulsion system plumbing and that isn't expected to happen until later this week, with inspections probably beginning on Friday, said KSC spokesman George Diller. Diller also said that inspections are finished on Columbia and the final tally is there were three cracks found on the flow liners, similar in size and scope to those found inside Atlantis and Discovery.
Meanwhile, workers are continuing to prepare each of the shuttles for their next flights as best they can pending the results of the crack analysis and there still is strong belief at least one shuttle mission will fly in August. Which one remains the question.
Got NASA, aerospace or other launch-related dish? Drop
Jim Banke an e-mail.