NASA’s Opportunity rover landed on the surface of Mars in January of 2004. As of Sunday (July 26), the Opportunity rover had driven a total distance of 25 miles (40 kilometers).
Opportunity took the top spot in total off-world distance traveled by surpassing Russia’s Lunokhod 2 lunar rover, which traveled a total distance of 39 kilometers across the surface of the moon between January and May of 1973.
The Russian rover helped to bring about a golden age of space exploration in the 70s. As a sign of respect, the Opportunity rover’s operators decided to commemorate the Russian rover by naming one of the first craters they encountered after it.
The craziest part of this record is that the Opportunity rover was only expected to travel a short distance when it was first sent to Mars in 2004. Here’s John Callas, who manages the Mars Exploration Project at NASA’s Jet-Propulsion Laboratory (JPL) in California:
“This is so remarkable considering Opportunity was intended to drive about one kilometer and was never designed for distance. But what is really important is not how many miles the rover has racked up, but how much exploration and discovery we have accomplished over that distance.”
The Opportunity rover is collecting data on Mars as part of a long-term plan for a manned mission to the planet around the year 2030.
The infographic below compares the distances driven by different rovers throughout the years. Click to enlarge (courtesy of NASA/JPL-Caltech):
NASA is confident that underneath Jupiter’s moon Europa there could be more water than in our oceans here on Earth. So naturally, Europa has attracted a lot of attention, encouraging the curious to ask, “Could there be life on Europa?”.
Currently, NASA is aiming to send a new mission to Europa by 2025. The White House’s 2015 federal budget allocates $15 million towards making this Europa mission a reality.
Europa has recently become one of NASA’s main focuses because, out of all the other planetary bodies in our solar system, it has arguably the greatest chance of harboring life.
“Every 10 years, the U.S. National Research Council, a nonprofit organization that advises the government, issues a report that recommends a planetary exploration strategy for NASA and the National Science Foundation. The current report (which covers 2013 to 2022) ranks an exploration of Europa among the highest priority missions. According to the report, the future mission should focus on taking a closer look at the ocean that scientists suspect lies below the surface; characterizing its icy crust and looking for any subsurface liquid water; determining the surface composition and chemistry; examining surface features and identifying landing areas for future missions; and understanding the purpose of its magnetosphere — the magnetic field surrounding the celestial body. NASA officials said the instrument proposals should focus on at least one of these exploration goals. The announcement calls for instruments designed for a spacecraft that will orbit Europa or complete several flybys, since astronomers do not yet have enough data to pinpoint safe landing sites on the icy moon.”
The video below describes Europa in more detail.
NASA hopes that by providing monetary incentives to private parties, they will encourage competition and innovation, leading to affordable development processes for the instruments necessary for new missions like the upcoming one to Europa.
Two of the main challenges for teams developing instruments are overcoming Jupiter’s high levels of radiation and making sure that no organic material from Earth (like microorganisms, for example) is introduced to Europa’s potentially habitable surface.
The competition ends in April 2015. NASA will select the top 20 proposals, rewarding $25 million to each of the selected teams to further advance their designs for their instruments. NASA will also select eight winners whose instruments will be developed and actually used in NASA’s mission to Europa.
This competition is included in NASA’s budget to get to Europa, according to Space.com…
“NASA is in the process of designing a mission that will cost less than $1 billion and will still meet as many of the exploration goals as possible.”
Check out NASA’s full guidelines for Europa mission science instrument ideas here.
You can also learn more about how Europa works in this infographic from Space.com (click to enlarge):
Poverty is often thought of as a predominantly urban problem. The inner city tends to be the most impoverished with wealth generally increasing as you get further and further out into the surrounding suburbs.
However, this trend may be reversing. In the decade between 2000 and 2010, poverty in the suburbs rose a whopping 25% while poverty in cities only rose 5.6%.
The infographic below shows how poverty rates changes in the urban areas and the suburbs of the largest U.S. cities during that time period (click to enlarge):
The figures in the infographic above are from a Brookings Institute study released in 2010. A year later, the Institute released another study, this time estimating that suburban poverty rose by 64% between 2000 and 2011.
There are a number of reasons for this trend. The first is simply that more people are moving from the cities to the suburbs.
The suburbs, particularly in the South, having been growing much faster than the urban areas. With growing suburbs come businesses like retail and restaurants, which employ primarily lower-wage workers.
With these new businesses requiring more and more low wage work, more affordable housing options have been emerging in the suburbs as well.
As a result, many of the poorer people living in the cities have migrated to the suburbs. The 2000s were the first time the suburban population surpassed the urban population in the U.S.
Another big factor was the recession of 2008, which hit the manufacturing and construction industries especially hard. Both of those industries are based primarily in suburban areas, further increasing suburban poverty rates.
To read more about the increasing trend of poverty in the suburbs and learn more about the Brookings Institute’s 2011 report, check out this Washington Post piece from last year.
With the rise of modern technology, the look of the classroom has been changing rapidly. Computers are replacing workbooks, iPads are replacing notebook paper, and teachers are increasingly using social media to communicate with their students.
Check out the awesome infographic below to learn more about how modern technology has been changing our education system (click the image to see the full size version):
The wars in Iraq and Afghanistan have lasted almost 15 years now, costing the United States between $4-6 trillion (with a “T”) dollars since they began back in 2001.
A significant portion of that money has gone to buying weapons and munitions for the soldiers. But what happens to these weapons when the soldiers are sent home?
“As President Obama ushers in the end of what he called America’s “long season of war,” the former tools of combat — M-16 rifles, grenade launchers, silencers and more — are ending up in local police departments, often with little public notice.”
That quote is from a New York Times article published last Sunday, an article that tells the story of how, under the Obama administration,
“police departments have received tens of thousands of machine guns; nearly 200,000 ammunition magazines; thousands of pieces of camouflage and night-vision equipment; and hundreds of silencers, armored cars and aircraft.”
One of these pieces of military weaponry is the MRAP (mine-resistant ambush-protected) armored vehicle. A total of 432 MRAP’s have made their way into the fleets of police departments around the country.
The graphic below shows where all of those MRAP’s were sent, as well as giving tallies of the all the military-grade equipment that has found its way into local department since the program started. Click the image to view the full-size version.
So why are so many weapons flowing into local police forces? Is it because they are facing increasingly dangerous scenarios? Many would argue that this is the case, and while it does have some truth to it, this is simply an excuse.
The real reason for local police departments taking in all of these weapons is basically that the government has nothing better to do with them- if the police don’t want them, they’re turned into scrap:
“The Pentagon program does not push equipment onto local departments. The pace of transfers depends on how much unneeded equipment the military has, and how much the police request. Equipment that goes unclaimed typically is destroyed. So police chiefs say their choice is often easy: Ask for free equipment that would otherwise be scrapped, or look for money in their budgets to prepare for an unlikely scenario. Most people understand, police officers say.”
The situation often pits the community against itself. Neenah, Wisconsin, a small city with very low levels of violent crime, is one of the cities set to receive one of the military’s armored vehicles.
When word got out about the police department’s plans to acquire the vehicle, some residents, like father Shay Korittnig, weren’t too happy about it:
“It just seems like ramping up a police department for a problem we don’t have… This is not what I was looking for when I moved here, that my children would view their local police officer as an M-16-toting, SWAT-apparel-wearing officer.”
William Pollnow Jr. is a city councilman in Neenah who decided he would be the one to ask, “Why are we doing this?” However, the argument on the other side is almost unbeatable. Here’s another excerpt from the Times article:
At the Neenah City Council, Mr. Pollnow is pushing for a requirement that the council vote on all equipment transfers. When he asks about the need for military equipment, he said the answer is always the same: It protects police officers.
“Who’s going to be against that? You’re against the police coming home safe at night?” he said. “But you can always present a worst-case scenario. You can use that as a framework to get anything.”
The biggest problem most people have with this heightened militarization of local police forces is that it’s being done, for the most part, without the knowledge of the public.
None of the cities taking in these weapons are holding town hall meetings, public forums or referendums to let the citizens decide whether or not to add fully-automatic machine guns and armored vehicles to the force.
I won’t be one of those people who sits here and tells you the government is about to start an all-out war against the people, using cops as infantry, because I just don’t see it.
What I will say is that, in my humble opinion, the increased militarization of police forces nationwide is both unnecessary and unsettling.
For more info, I highly recommend this New York Times piece– they did an extremely thorough job of covering the whole story from all angles.
BONUS: This great infographic details the cost of different parts of our military, comparing it to the average household income, as well as costs like college tuition, healthcare, and a new home. Click the image to view the full-size version:
Our modern society here on Earth depends heavily on just a handful of resources. These resources include fossil fuels like oil and coal, as well as raw minerals like copper, lead and zinc. With the rapid advancement of technology and industry worldwide in the last half century or so, our demand for these raw goods has skyrocketed.
This cool infographic lists some of our most widely-used resources, showing how much of each was left in 2010 and where the remaining resources are located.
For the top graph, the longer portion in the middle of each bar predicts the number of years until the resource runs out if it keeps being used at current rates.
However, most resources are being used more each year than the year before, so the shorter outer portion of each bar predicts the number of years left if our demand and production continues to increase. Click the image to see the full size version.