Year: 2014

Russia loses contact with Photon-M

9:06 am

Russia has lost contact with its Photon-M biology spacecraft, launched last week with a four geckos on board.

The Russians say that the receipt of telemetry from the spacecraft shows it is successfully operating autonomously without help from the ground. And since the Russians have a great deal of experience building spacecraft that can function on their own, I have no reason to disbelieve them in this. What is not clear is whether the spacecraft can come home on its own.

1 comment

SLS needs more money!

8:53 am

Surprise, surprise! A GAO report finds that SLS is over budget and that NASA will need an additional $400 million to complete its first orbital launch in 2017.

NASA isn’t meeting its own requirements for matching cost and schedule resources with the congressional requirement to launch the first SLS in December 2017. NASA usually uses a calculation it calls the “joint cost and schedule confidence level” to decide the odds a program will come in on time and on budget. “NASA policy usually requires a 70 percent confidence level for a program to proceed with final design and fabrication,” the GAO report says, and the SLS is not at that level. The report adds that government programs that can’t match requirements to resources “are at increased risk of cost and schedule growth.”

In other words, the GAO says SLS is at risk of costing more than the current estimate of $12 billion to reach the first launch or taking longer to get there. Similar cost and schedule problems – although of a larger magnitude – led President Obama to cancel SLS’s predecessor rocket system called Constellation shortly after taking office. [emphasis mine]

I want to underline the current $12 billion estimate for the program’s cost to achieve one unmanned launch. That is four times what it is costing NASA to get SpaceX, Boeing, and Sierra Nevada to build their three spaceships, all scheduled for first manned launch before 2017. SLS not only can’t get off the ground before 2017, it can’t even get built for $12 billion.

If this isn’t the definition of a wasteful, boondoggle designed merely as pork, I don’t know what is. And what I do know is that there is no way SLS is going to ever get the United States back into space. It should be shut down, now.

2 comments

Falcon 9 soft lands on water

6:55 pm

SpaceX claimed in a press release on Tuesday that it had successfully completed a soft splashdown of the first stage of its Falcon 9 rocket in its launch earlier this month.

Video below the fold. The quality is not great because of a buildup of ice on the camera, but it does show they were able to restart the engines twice after separation. It also shows the landing legs deploy just before the stage hovers above the water.
» Read more

11 comments

Exoplanets with no water

6:43 pm

The uncertainty of science: Though planet formation theories said they should have water, in looking for water on three exoplanets astronomers were surprised to discover practically none there.

The three planets, known as HD 189733b, HD 209458b, and WASP-12b, are between 60 and 900 light-years away from Earth and were thought to be ideal candidates for detecting water vapor in their atmospheres because of their high temperatures where water turns into a measurable vapor. These so-called “hot Jupiters” are so close to their star they have temperatures between 1,500 and 4,000 degrees Fahrenheit, however, the planets were found to have only one-tenth to one one-thousandth the amount of water predicted by standard planet-formation theories.

“Our water measurement in one of the planets, HD 209458b, is the highest-precision measurement of any chemical compound in a planet outside our solar system, and we can now say with much greater certainty than ever before that we’ve found water in an exoplanet,” said Nikku Madhusudhan of the Institute of Astronomy at the University of Cambridge, England. “However, the low water abundance we have found so far is quite astonishing.” Madhusudhan, who led the research, said that this finding presents a major challenge to exoplanet theory. “It basically opens a whole can of worms in planet formation. We expected all these planets to have lots of water in them. We have to revisit planet formation and migration models of giant planets, especially “hot Jupiters,” and investigate how they’re formed.”

0 comments

New Rosetta comet images

6:34 pm

New images from Rosetta have a resolution of 100 meters per pixel and are finding that the neck connecting the comet’s two sections is apparently much brighter than the rest of the nucleus.

As earlier images had already shown, 67P may consist of two parts: a smaller head connected to a larger body. The connecting region, the neck, is proving to be especially intriguing. “The only thing we know for sure at this point is that this neck region appears brighter compared to the head and body of the nucleus”, says OSIRIS Principal Investigator Holger Sierks from the Max-Planck-Institute for Solar System Research (MPS) in Germany. This collar-like appearance could be caused by differences in material or grain size or could be a topographical effect.

It looks like this comet is going to turn out to be one of the most fascinating objects any space probe has visited in a long time.

0 comments

Soviet spacecraft kidnapped by CIA

6:23 pm

Stranger than fiction: In 1967 the CIA kidnapped a Soviet spacecraft for 24 hours during a global international exhibition tour.

Because the Lunik was guarded 24/7 by Soviets during the second exhibition, the intelligence agents had to wait until the show was over and the Lunik crated for shipment. Then the CIA agents “arranged to make the Lunik the last truckload of the day to leave the grounds,” Finer says. When the Americans made sure no Soviets were on the road watching the truck with the precious cargo as it made its way to the railroad station, “the truck was stopped at the last possible turn-off, a canvas was thrown over the crate and a new driver took over,” Finer says. “The original driver was escorted to a hotel room and kept there for the night.” In a salvage yard, the American experts poked, prodded and photographed the Lunik. Meanwhile, at the railroad yard where the shipment was expected, the Americans got lucky. The Russian waiting to check in the truckloads evidently grew tired, bored, hungry or all three: He left his post to eat dinner and then headed to his hotel to sleep. By 7 a.m., the Russian was back at his post at the rail yard, none the wiser. There he “found the truck with the Lunik awaiting him.”

1 comment

Out of the Canyon

6:18 pm

We exited the Grand Canyon on schedule at about 1:30 on Thursday. The hike out this year took one hour longer than last year, mostly because we took longer breaks.

As always, the Canyon is a sublime place, hard to describe to those who have never been there and unnecessary to describe for those who have. We hiked in, did an 11 mile hike the one day we were at the bottom, then hiked out today.

Posting will resume but will remain light until I return home on Sunday night.

0 comments

Eddi Reader – Galileo

6:01 pm

An evening pause:

Galileo fell in love as a Galilean boy
And he wondered what in heaven, who’d invented such a joy.
But the question got the better of his scientific mind
And to his blind and dying day
He’d look up high and love and sighed and sometimes cried,
Who puts the rainbows in the sky?
Who lights the stars in the night?
Who dreamt up someone so divine?
Someone like you and made them mine?

0 comments

Islamic terrorism and bigotry for all to see.

8:54 pm

The religion of peace: “In a sort of reverse Passover, ISIS activists have marked the homes of Christians with the letter N for “Nassarah,” an Islamic term for Christian, to identify the homes whose inhabitants were to be slaughtered.”

The article also shows, with pictures, the violent nature of the Muslim demonstrations against Israel in France, and the intolerant treatment of Christians by ISIS in Mosul, Iraq.

7 comments

An exoplanet with an orbit like Mars

8:31 pm

Using Kepler astronomers have discovered a Uranus-sized exoplanet with the longest known orbit, 704 days.

Kepler-421b orbits an orange, type K star that is cooler and dimmer than our Sun. It circles the star at a distance of about 110 million miles. As a result, this Uranus-sized planet is chilled to a temperature of -135° Fahrenheit.

As the name implies, Kepler-421b was discovered using data from NASA’s Kepler spacecraft. Kepler was uniquely suited to make this discovery. The spacecraft stared at the same patch of sky for 4 years, watching for stars that dim as planets cross in front of them. No other existing or planned mission shows such long-term, dedicated focus. Despite its patience, Kepler only detected two transits of Kepler-421b due to that world’s extremely long orbital period.

The planet’s orbit places it beyond the “snow line” – the dividing line between rocky and gas planets. Outside of the snow line, water condenses into ice grains that stick together to build gas giant planets.

Posted from Bright Angel Lodge on the rim of the Grand Canyon.

1 comment
1 … 77 78 79 80 81 … 170