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When a wall is slowly covered over by earth, the materials it's made from decay and become part of the soils around and above it, sometimes causing vegetation above and next to the wall to grow faster or slower. Satellite imagery helps archaeologists to pick up these subtle changes.
Comics are a dying art. If you ask a little kid to choose between a video game with insane graphics or comic books... you have to compete with cable, satellite TV with its thousands of channels, and with video games that are like movies, with CGI explosions where you can blow up worlds.
The Fifties and Sixties were years of unreal optimism about weather forecasting. Newspapers and magazines were filled with hope for weather science, not just for prediction but for modification and control. Two technologies were maturing together: the digital computer and the space satellite.
On the 11th anniversary of 9/11, it is some consolation that the man most responsible for that terrible morning will not be smiling smugly to himself as satellite TV brings to the leafy boulevards of Abbottabad the somber images of New Yorkers commemorating those who perished in the Twin Towers.
Most of the planet's terrestrial surfaces are visually accessible through video cameras and satellite imagery, if not physically within reach. Even the approaches to Mount Everest are now littered with human debris. One can drive to Timbuktu, which for centuries was synonymous with inaccessibility.
With excessive digitisation, now, everyone is making films, which is good, but the makers think that they will quickly make films in digital and bag satellite rights but television channels buy satellite rights of notable films only. If we made fewer films a year, percentage of hits would be better.
As a nation we have, over the past seven years, been rebuilding our intelligence with powerful capabilities that many thought we would no longer need after the Cold War. We have been rebuilding our clandestine service, our satellite and other technical collection, our analytical depth and expertise.
I made a lot of money. I earned a lot of money with CNN and satellite and cable television. And you can't really spend large sums of money, intelligently, on buying things. So I thought the best thing I could do was put some of that money back to work - making an investment in the future of humanity.
The Moon is a ball of left-over debris from a cosmic collision that took place more than four billion years ago. A Mars-sized asteroid - one of the countless planetesimals that were frantically churning our solar system into existence - hit the infant Earth, bequeathing it a very large natural satellite.
The bottom line is that finding orphan planets - small, faint, and located who-knows-where - is not for the faint of heart. The task is comparable to observing a match flame at the distance of Pluto. The WISE satellite, a hi-tech, space-based infrared telescope especially suited for such work, has found only a few.
I used to do volunteer work in poor areas of Cairo, and people would gather their money together to get a satellite dish. You'd see them huddling around and for the first time seeing issues being debated on TV that had never been talked about before. And that is the biggest promoter of democracy you could possibly have.
My mother was the kind of person who was very much part of her tribe and very much a satellite of her tribe. She was the girl who left her family at the age of 17 and went to Washington. My mother was orphaned at three and then was brought up by my aunt Goldie. So, yes she belonged, but there was a part of her that didn't.
The only technology that can 'see' beneath the ground is radar imagery. But satellite imagery also allows scientists to map short- and long-term changes to the Earth's surface. Buried archaeological remains affect the overlying vegetation, soils and even water in different ways, depending on the landscapes you're examining.
The most exciting moment as an archaeologist happened when I was looking at the great archaeology site of Tannis, which of course we all know from 'Indiana Jones.' We got satellite imagery of the city of Tannis, we processed it, and literally from thousands of miles away from my lab in Alabama, we were able to map the entire city.
I think when people see Pluto revealed by New Horizons, its satellite system, its complex surface, its atmosphere, I think they'll have a hard time saying 'That's not a planet' because it obviously will be, and I think most people are already coming to that opinion anyway, but I think that's really going to drive it home viscerally.
In a world of cell phones and satellite feeds - a world in which the president can sit in the White House situation room and watch a military action unfold on the other side of the world - it is not realistic to expect TV news to be anything but what it has become: a ceaseless flow of words and images that may or may not be accurate.
Next-generation networks are hard to build. It takes a lot of money and effort to lay fiber, install wireless infrastructure, build satellite earth stations, and more. It also requires a reasonably certain business case for deployment, which is all too often hard to prove in parts of the country with sparse population and/or lower incomes.
We had this thing at Stanford called the 'Campus Loop,' and then we had another run called 'The Dish,' and you'd run up to this giant satellite dish, which was probably extremely unhealthy. I would do those two runs, and I just found it so therapeutic. My girlfriends and I would have these great conversations about guys and school and life.
If I can drive down the road in my car and listen to XM satellite, and when a song gets beamed into my car, it can tell me who wrote the song and what the damn lyrics are, why, when you broadcast a digital signal of a film, can't it speak to your television to set up a list of settings to show the film in the way that it was meant to be shown?
There are times when I need to dig up the diagram for a type of satellite dish, for instance, but I just can't seem to phrase this need correctly. As a result, I'm inundated by advertising for satellite television and people's online customer reviews of such services when, in fact, I was only trying to figure out what a certain component is called.