Tag Archives: Opportunity

Astronomy News

RIP, Opportunity

There have been many “obituaries” for Opportunity, this one if from Sky and Telescope.

Opportunity’s mission was originally expected to last 90 days. It relies on solar panels for power, and engineers expected dust to accumulate on the panels over time and choke out that power. “We didn’t expect wind to blow dust off,” says project manager John Callas (NASA / JPL). “It became reliable on a seasonal cycle.” Combined with what Callas calls “the finest batteries in the solar system,” the robot far outlived its original warranty.

But now, after almost 15 years of roving the Red Planet, last summer’s global dust storm proved too much for the rover to withstand. Dust coated the panels, and Opportunity’s voltage dropped below usable levels. (The dust storm wasn’t a problem for plutonium-powered Curiosity.)

Opportunity’s mission was originally expected to last 90 days. It relies on solar panels for power, and engineers expected dust to accumulate on the panels over time and choke out that power. “We didn’t expect wind to blow dust off,” says project manager John Callas (NASA / JPL). “It became reliable on a seasonal cycle.” Combined with what Callas calls “the finest batteries in the solar system,” the robot far outlived its original warranty.
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But now, after almost 15 years of roving the Red Planet, last summer’s global dust storm proved too much for the rover to withstand. Dust coated the panels, and Opportunity’s voltage dropped below usable levels. (The dust storm wasn’t a problem for plutonium-powered Curiosity.)

 

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Astronomy News

HUGE DUST STORM ON MARS

Space Weather News for June 13, 2018
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HUGE DUST STORM ON MARS: Yesterday, NASA lost contact with the Opportunity Mars rover as a ferocious dust storm spreads around the Red Planet. Thick dust has turned day into night at Opportunity’s work site in Perseverance Valley, blocking sunlight to the solar powered rover. Currently on the verge of circumnavigating Mars, the storm is so large that amateur astronomers can now see it through backyard telescopes. Visit today’s edition of Spaceweather.com for an animation of the spreading storm and more information.

Remember, SpaceWeather.com is on Facebook!
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Above: Images from NASA’s Mars Reconnaissance Orbiter show the dust storm enveloping Opportunity last week. Visit Spaceweather.com to see the full animation.

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Astronomy News

Opportunity is still Roving!

This visualization of the Opportunity rover on Mars was created using “Virtual Presence in Space” technology developed at JPL.

Opportunity, one of the two Mars Exploration Rovers launched in 2003, landed successfully on the Red Planet at 04:54 UTC on January 25, 2004. Its original mission parameters planned for 90 martian days (called sols) of operation during the mild summer on the Meridiani Planum near the planet’s equator. As of January 16, 2018, Opportunity has been operational for 4,970 sols and driven 28.02 miles (45.09 kilometers) on the martian surface.
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Astronomy News

Remote Sensors detect…

Robot looks up
  •  Frozen water found on asteroid
  • Planet 9 may be affecting our solar system
  • NASA’s MRO takes picture of Schiaparelli crash site
  • Curiosity and Opportunity still on the job
  • Juno update

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1) Asteroid   has frozen water on its surface: 16 Psyche, a metallic relic of the early solar system, just got weirder.

New research suggests that the asteroid 16 Psyche may have traces of water splattered across its surface. Infrared observations reveal the characteristic absorption of unexpected volatiles, hinting at impacts by water-bearing rocks crashing into the iron-rich asteroid that is suspected to be the relic core of a failed planet. READ MORE

2) Is Planet 9 (no, not Pluto!) messing with our solar system?

Earlier this year an announcement raised a tantalizing possibility: a ninth planet lurking in the outer reaches of our solar system. The announcement turned the astronomy and planetary science world upside down.

Caltech astronomer Michael Brown and theoretical astrophysicist Konstantin Batygin found evidence for a possible 10 Earth mass planet that may be tilting long-orbiting dwarf planets on their sides and shepherding them into clusters far past the orbit of Neptune in highly eccentric orbits. In the last several months, more and more papers have been published about the possible planet and how it might prove an explanation for other strange things happening in our solar system. READ MORE

3) NASA’s Mars Reconnaissance Orbiter has identified new markings on the surface of the Red Planet that are believed to be related to ESA’s ExoMars Schiaparelli entry, descent and landing technology demonstrator module.

A pair of before-and-after images taken by the Context Camera (CTX) on NASA’s Mars Reconnaissance Orbiter on 29 May 2016 and 20 October 2016 show two new features appearing following the arrival of the Schiaparelli test lander module on 19 October.

One of the features is bright and can be associated with the 12-m diameter parachute used in the second stage of Schiaparelli’s descent, after the initial heat shield entry. …

The other new feature is a fuzzy dark patch roughly 15 x 40 metres in size and about 1 km north of the parachute. This is interpreted as arising from the impact of the Schiaparelli module itself following a much longer free fall than planned, after the thrusters were switched off prematurely.

BTW, the loss of the lander is not a disaster for the ESA, the orbiter is doing fine. READ MORE

4) They’re aging, a bit wobbly, and some parts don’t work anymore, but they’re hanging in there…  They’re even taking selfies!  READ MORE

http://www.skyandtelescope.com/astronomy-news/curiosity-opportunity-udpate/?

5) Juno Update (October 19)  An anomaly caused the spacecraft to enter electronic hibernation at 1:47 a.m. EDT. The spacecraft acted as expected during the transition into this “safe mode,” restarted successfully, and is healthy. High-rate data has been restored, and the spacecraft is conducting flight software diagnostics. All instruments are off, and the planned science data collection for today’s close flyby of Jupiter did not occur. Scott Bolton (NASA) explained at the ongoing meeting of the Division of Planetary Sciences that the problem was with valves in propulsion system. Find more information from NASA’s recent press release. Meanwhile, data from the first perijove flyby are still revealing intriguing results, showing that Jupiter’s belt-zone structure extends at least 400 km deep!