More evidence of past glaciers on Mars
New geological evidence suggests that glaciers once flowed in Mars’ largest canyon, Valles Marineris.
Tag: Mars
Mangalyaan’s first global images of Mars
Indian engineers have released the first global images taken by Mangalyaan.
As MOM’s orbit is highly elliptical, reaching from 262 miles (periareon — closest approach) to 47,841 miles (apoareon — farthest extent), we can expect a lot more global views from Mars’ newest satellite, providing us with a beautiful global perspective of a planet that currently has seven robotic missions (from three different space agencies) exploring it.
These images suggest that a dust storm is beginning to stir on the Martian surface.
Mangalyaan sends its first Mars pictures
Indian engineers have posted Mangalyaan’s first image on the spacecraft’s Facebook and Twitter accounts, as well as presented the photo to their nation’s leader.
My first reaction when I looked at the image above was an immediate flashback to 1969, when the American probes Mariner 6 and Mariner 7 flew past Mars, taking images of its cratered southern hemisphere and thus making scientists think for several years that Mars was not much different than the Moon. The Indian image is of about the same quality, and shows lots of moon-like craters.
Image if this was the first close-up image of Mars anyone had ever seen. It would be very easy to assume that Mars is pockmarked with craters everywhere, just like the Moon.
Why India’s Mars probe was so cheap
Alan Boyle has some interesting thoughts on why it cost India so little, less than the budget of the movie Gravity, to build and send its probe Mangalyaan to Mars.
The $74 million Mars Orbiter Mission, also known by the acronym MOM or the Hindi word Mangalyaan (“Mars-Craft”), didn’t just cost less than the $100 million Hollywood blockbuster starring Sandra Bullock. The price tag is a mere one-ninth of the cost of NASA’s $671 million Maven mission, which also put its spacecraft into Mars orbit this week. The differential definitely hints at a new paradigm for space exploration — one that’s taking hold not only in Bangalore, but around the world. At the same time, it hints at the dramatically different objectives for MOM and Maven, and the dramatically different environments in which those missions took shape.
Read it all. It gives us a hint at the future of space exploration.
Success for India’s Mars Orbiter Mission
The competition heats up: On Wednesday morning India’s Mars orbiter Mangalyaan successfully fired its engines and attained Mars orbit.
More here.
There are probably three dozen stories in the India press today extolling this success. And there should be. As described in detail in the second link above, India did this mission smart, simple, and fast, showing everyone else that a science mission doesn’t have to take a decade and a billion dollars to be get built.
I expect that this success will quickly lead to the Indian manned flight tests their space agency ISRO has been advocating for the past few years.
Mangalyaan’s engine test a success
Indian engineers have successfully test-fired Mangalyaan’s engine in preparation for its Mars orbital insertion on Wednesday.
MAVEN enters Mars orbit
Upon completion of its engine burn this evening at 10:10 pm (eastern), MAVEN successfully entered Mars orbit.
Stephen Clark’s status updates on Spaceflight Now were accurate, informative, and right on the money. The live telecast on NASA-TV was confusing, idiotic, distracting, and uninformed. They never once announced when the engine burn had started, ignored the reactions of the people in the control room when they cheered some important event, and spent a lot of time discussing facts that were irrelevant to this event, which is “Will MAVEN achieve orbit!?” Worst of all, the male “anchor” was clearly ignorant of the mission while the female “anchor” spoke in a sing-song manner as if her audience were kindergarten toddlers who needed careful herding. All in all, it was embarrassing to watch.
They did manage to shut up just in time to catch the announcement from mission control that telemetry had confirmed that MAVEN had reached orbit. They then went back to chattering about irrelevant stuff. As I said, embarrassing.
The competition in space continues to heat up
Two news stories today indicate that things are going to get increasingly interesting in the exploration of space in the coming years.
First there is this story from Joe Abbott of the Waco Tribune, who routinely reports on SpaceX news because their McGregor test facility is nearby. In it Abbott reports that SpaceX has scheduled its next Dragon supply mission to ISS for no early than September 20.
This news item however is not Abbott’s most interesting news. He also notes several twitter reports coming out a commercial satellite conference in Paris that indicate that SpaceX has closed 9 deals, including several more for its as yet unflown Falcon Heavy.
But even that is not the most interesting news. Abbott also reports that a replacement for the destroyed Falcon 9R test vehicle will be shipped to McGregor for testing in less than two months. Considering how long it takes governments to build and fly test vehicles, getting this replacement in shape for flight mere months after the failure a few weeks ago is quite impressive.
But even that was not Abbott’s most interesting SpaceX news item. » Read more
Curiosity to begin climbing
Scientists have decided to begin Curiosity’s climb of Mount Sharp immediately rather than continue a planned traverse along the base of the mountain prior to heading uphill.
Curiosity’s trek up the mountain will begin with an examination of the mountain’s lower slopes. The rover is starting this process at an entry point near an outcrop called Pahrump Hills, rather than continuing on to the previously-planned, further entry point known as Murray Buttes. Both entry points lay along a boundary where the southern base layer of the mountain meets crater-floor deposits washed down from the crater’s northern rim.
The issues with Curiosity’s wheels also played a part in this decision.
Review panel approves extensions for seven planetary missions.
In approving extensions of seven NASA planetary missions, a review panel concluded that the Curiosity rover wasn’t doing the best it could, and that the project scientist didn’t work hard enough to change their minds.
The Mars Science Laboratory’s Curiosity rover landed on the red planet in August 2012. Equipped with a drill to gather surface samples and spectroscopy equipment to analyze the samples, the rover has collected and analyzed five surface specimens so far and, according to the extended mission proposal just approved by NASA, would analyze another eight over the next two years. That is “a poor science return for such a large investment in a flagship mission,” a 15-person senior review panel chaired by Clive Neal, a geologist at the University of Notre Dame in South Bend, Indiana, wrote in a report published Sept. 3.
The report also chided John Grotzinger, the lead Curiosity project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California, for neglecting to show up in person during a Mars-focused senior review panel meeting in May. “This left the panel with the impression that the [Curiosity] team felt they were too big to fail,” the senior review panel wrote.
This sounds like a pissing war between scientists. Grotzinger didn’t give them the required deference so they slammed him. No matter happened, however, we know they weren’t going to cancel Curiosity’s funds.
Opportunity to get a reboot
Because of an increasing number of computer resets on the Mars rover Opportunity, engineers plan to reformat the rover’s computer.
The resets, including a dozen this month, interfere with the rover’s planned science activities, even though recovery from each incident is completed within a day or two.
Flash memory retains data even when power is off. It is the type used for storing photos and songs on smart phones or digital cameras, among many other uses. Individual cells within a flash memory sector can wear out from repeated use. Reformatting clears the memory while identifying bad cells and flagging them to be avoided.
Obviously there is a risk, though small, that this action will not work and the mission will end here. Stay tuned.
Curiosity cancels drilling and moves on
Adventures on Mars: After finding that a candidate rock for drilling was not stable enough, Curiosity engineers have canceled the drilling and instead decided to continue the rover’s journey towards Mount Sharp, having chosen a new route that bypasses Hidden Valley, which was found to be too slippery.