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NASA's Dawn Spacecraft Is Dead (theverge.com)
NASA's Dawn spacecraft has run out of fuel, leading the agency to officially end its mission of exploring the two largest objects in the asteroid belt, Vesta and Ceres. "Today, we celebrate the end of our Dawn mission -- its incredible technical achievements, the vital science it gave us and the entire team who enabled the spacecraft to make these discoveries," Thomas Zurbuchen, associate administrator of NASA's Science Mission Directorate in Washington, D.C., said in a statement. "The astounding images and data that Dawn collected from Vesta and Ceres are critical to understanding the history and evolution of our solar system," Zurbuchen added. Space.com reports: The $467 million Dawn mission launched in September 2007 to study the protoplanet Vesta and the dwarf planet Ceres, which are about 330 miles (530 kilometers) and 590 miles (950 km) wide, respectively. Scientists regard these two bodies as leftovers from the solar system's planet-formation period, which explains the mission's name. Dawn arrived at Vesta in July 2011, then scrutinized the object from orbit for 14 months. The probe's work revealed many intriguing details about Vesta. For example, liquid water once flowed across the protoplanet's surface (likely after buried ice was melted by meteorite impacts), and Vesta sports a towering peak near its south pole that's nearly as tall as Mars' famous Olympus Mons volcano. Dawn left Vesta in September 2012.
The mission team concluded that Dawn had run out of hydrazine after the probe missed scheduled communication check-ins yesterday (Oct. 31) and today. Hydrazine is the fuel used by Dawn's pointing thrusters, so the spacecraft can no longer orient itself to study Ceres, relay data to Earth or recharge its solar panels. Dawn will remain in orbit around Ceres for at least 20 years, and probably much longer than that. Mission team members have said there's a greater than 99 percent probability that the probe won't spiral down onto Ceres' frigid, battered surface for at least five more decades. It's been a rough week for space explorers as not only did Dawn run out of fuel, but the Kepler telescope did too and had to be retired.
The mission team concluded that Dawn had run out of hydrazine after the probe missed scheduled communication check-ins yesterday (Oct. 31) and today. Hydrazine is the fuel used by Dawn's pointing thrusters, so the spacecraft can no longer orient itself to study Ceres, relay data to Earth or recharge its solar panels. Dawn will remain in orbit around Ceres for at least 20 years, and probably much longer than that. Mission team members have said there's a greater than 99 percent probability that the probe won't spiral down onto Ceres' frigid, battered surface for at least five more decades. It's been a rough week for space explorers as not only did Dawn run out of fuel, but the Kepler telescope did too and had to be retired.
It ran out of gas in the middle of no where. Eventually someone will retrieve it.... in about 50 years. I hope it and the Mars rovers will someday be put in a Museum, though I'll probably be long dead myself before that happens.
Upcoming mission to 16-psyche the most interesting asteroid, 100 km diameter, known to be metallic nickel-iron. Was it originally part of the molten core of a destroyed planet? We want to know. Launches in 2022, arrives in orbit 2026. Like Dawn, has a very cool ion thrust motor, looks like old science fiction.
When all you have is a hammer, every problem starts to look like a thumb.
They were, they failed.
https://www.nasa.gov/feature/j...
I will miss the Dawn Journal which has been a fascinating description of the engineering behind the mission.
It ran out of gas in the middle of no where. Eventually someone will retrieve it.... in about 50 years.
We haven't been back to the Moon in 50 years which is FAR easier to get to. Thinking we're going to be back to Ceres to retrieve a dead probe within another 50 years seems extremely improbable. I know we're all excited about what SpaceX and the rest are doing but let's pump the brakes slightly shall we? Our progress in space isn't going that quickly. Nobody is going to fund a mission to retrieve this thing because there is no economic or scientific value in doing so. If we do send a craft capable of retrieving stuff there are FAR more interesting things to retrieve than a dead probe.
My first computer only had 64k memory and my current one has 16GB. Cellphones used to be lugged around in cases, now they can fit on my wrist. People used to say humans can't fly. Therefore we will get the probe within 50 years.
Got any more irrelevant analogies to throw in there? How about the rate of internet adoption in third world countries or the rapid adoption of yoga pants? I have to assume you are trolling...
Pro tip. The rate of increase of memory in your computer has fuck-all to do with the problems of deep space travel.
Just because we've made fast progress in one field doesn't mean we are capable of making equivalently fast progress in a completely different endeavor. We've been doing space travel for about 60 years now and we haven't made more than incremental leaps in capabilities for 40 years. Most of the people reading this weren't even alive the last time we put a man on the moon.
Twit. What would be the point of impeaching a space probe that's run out of fuel? Do you suspect that it sold the fuel to Jovian insurgents?
I just know the Cardassians are behind this!
Or is that the Kardashians?
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
There was a saying in USSR, that loosely translates as: "If you don't praise yourself in the morning, all day you'll feel like having been spat on..."
In Soviet Washington the swamp drains you.