Last week we brought you preliminary information on a proposed mission to Mars that is being spearheaded by Dennis Tito, the American multi-millionaire who became the world's first space-tourist back in 2001. At the time, Tito's plans were a bit nebulous but he promised more information was coming soon. On Wednesday of this week, he shared more details, including the possibility of sending a husband and wife team on a flyby of the red planet.

Tito's new non-profit organization, Inspiration Mars, was launched with the expressed purpose of mounting a manned mission to Earth's neighbor in just five years time. Tito believes that we have a unique window of opportunity early in 2018 when the Earth and Mars will be aligned with one another, making the flight path relatively straightforward and simple. He is aiming to launch his currently unknown spacecraft on January 5 of that year on what is expected to be a 501-day journey.

To combat the loneliness that could come from a prolonged space voyage of this type, Tito is proposing that the crew consist of two members – a man and a woman. He went on to say that it would be preferable if they were a husband and wife team to prevent issues of incompatibility along the way. After all, the two people selected to go will be sharing small, cramped quarters for well over a year. It would make sense that they have a solid relationship and know each other well before they depart.

Death Valley National Park may look otherworldly at times but this weekend it will actually play host to an event that is definitely out of this world.

The second annual MarsFest will take place in the park starting Friday, March 1, running through Sunday, March 3. The event is designed to allow scientists and space enthusiasts to interact with one another as they jointly explore the possibilities of space exploration, something that Death Valley has played a crucial role in for decades.

Because of the extreme environments and conditions that exist in the Valley, it has long served as a testing ground for new gear and equipment for NASA. The park is often used to simulate hostile alien environments such as those founds on the surface of Mars. In fact, many of the instruments that are currently in use on the Curiosity Rover were first put through their paces in Death Valley. Attendees of MarsFest will get to see just how NASA uses Death Valley as a proving ground before sending their multi-million dollar equipment into space.

The three-day festival has a full schedule of events on tap, including field trips to a variety of locations inside the park, guest lectures from scientists and guided hikes to remote locations. A daylong expo with informational booths will provide demonstrations of some of the delicate instruments used by NASA, while panel discussions on the future of space travel should prove enlightening as well.

If you're interested in attending MarsFest 2013 click here for more details.

[Photo Credit: NASA]

Travel-booking service Orbitz had released an update to their popular iOS app, bringing full iPad optimization to Apple's tablet for the first time. The new version of the app now runs at the iPad's native screen resolution and taps into the device's more powerful processor to provide faster search results to consumers. The app also presents users with special mobile-only discounts that aren't available through the company's traditional web portal.

Much like the former iPhone-only version, the new app lets users find and book discounted flights, hotel rooms and rental cars. The search results are then displayed on the larger iPad screen allowing travelers to compare the details of different flight options or view hotels in both a list and map view. These features help make the search process much easier and simply aren't possible on the smaller screen of a smartphone.

Streamlined searching of travel options isn't the only thing the app brings to the table. It also allows travelers to save their itineraries for offline viewing and even adds important dates and times to the iPad's built-in calendar. Additionally, it will provide updated information on flight delays or gate changes and grants access to exclusive deals for hotel rooms, often at as much as 50 percent off the normal price.

In celebration of the release of the new iPad app, Orbitz is giving away a trip for two to Chicago. The contest winner will receive first-class, round-trip airfare and two nights stay at the swanky Peninsula Chicago hotel. To enter to win, just visit the Orbitz Facebook page.

And to download the new iPad version of the app hit the App Store.

[Photo Credit: Orbitz]

A cruise ship that went missing back in January was spotted drifting toward the coast of Ireland late last week. The M/V Lyubov Orlova was on its way to the scrapyard when it broke away from a Canadian tug in international waters last month and hadn't been seen since. It has been floating aimlessly across the Northern Atlantic and is now reportedly within 1200 nautical miles of the Irish coast.

The Russian-built cruise liner was seized in St. John's, Newfoundland, back in 2010 because its owners were in debt to the tune of $250,000 and hadn't paid the crew in over five months. In February of last year, the ship was bought by Neptune International Shipping and was scheduled to be scrapped in the Dominican Republic. That's where it was headed when the ship broke free from the tug charged with delivering it to its final destination. When the crew of the tug failed to recapture it due to high winds and extremely choppy seas the Orlova was left to drift across the open ocean. Canadian authorities refused to mount a salvage operation because the vessel was adrift in international waters.

While in operation, the Orlova was designed to serve as an expedition ship, carrying passengers to both the Arctic and Antarctic. The past few years haven't been kind to it, however, and while it sat empty in the St. John's Harbor it has fallen into a state of disrepair. At the time of its departure it was also said to be overrun with rats.

The current owner of the vessel, Reza Shoeybi, is now scrambling to reclaim the ship. He says that he is working with salvage companies in Ireland to try to retrieve the vessel. Bad weather in the North Atlantic is hampering those efforts, however, and it may be some time before it can be captured and towed into shore.

In the meantime, the ship is open to rights of salvage as long as it remains in international waters. If you've ever dreamed of owning your own cruise ship, now is your chance.

[Photo Credit: Dan Conlin via WikiMedia]

Smartphones, tablet, iPods and other devices have certainly made our travel experiences much more enjoyable. Gone are the days of sitting around an airport for hours on end with few ways to pass the time. Keeping those gadgets fully charged for extended use can be a real challenge, however, as a dead battery means our tech toys are really just dead weight. Fortunately there are more charging options available than ever before including a host of fantastic chargers and cables from Ventev, a company focused on making high-quality accessories for our favorite gadgets.

Wallport r2200 ($30-$35)
Ventev offers a line of wall chargers with built-in USB ports that are perfect for travelers. Since most modern mobile devices are powered via USB, these wall chargers are, in a sense, universal, allowing us to leave our various gadget-specific chargers at home in favor of a single option.

My favorite of these wall chargers was the r2200, which features two rapid-charging USB ports that are capable of powering two iPads at the same time. Considering how notoriously power-hungry the iPad is, this is a nice option for keeping your tablet ready for use, whether you're at home or on the road. Each port is capable of delivering up to 10 watts of juice, which means your iPad will charge at its normal rate but your smartphones, mp3 players and other devices will charge at a much quicker pace. My iPhone for instance was able to go from completely dead to a full-charge in less than two hours.

Durable and attractive, the r2200 is well built for the challenges of travel. It is also lightweight and compact, which means it will save space in your bag, particularly when you consider all of the other chargers that it replaces. Ventev offers it with two options, the charger itself for $30 or with an included Micro USB cable for $35. Apple device owners will need to bring their own 30-pin or Lightning cables.

The National Park Service has announced that the official length of Mammoth Cave now surpasses 400 miles as ten miles of newly mapped chambers and passageways were recently added to the cave complex. Park officials say that these additional miles were the result of a series of smaller, more incremental finds, and were not the result of a single major discovery. Exploration and mapping of these new areas were conducted in partnership with the Cave Research Foundation.

Carved out of the central Kentucky limestone, Mammoth Cave was already the longest cave system in the world prior to the addition of these new discoveries. In fact, it is so large that it is more than twice the size of the next longest cave. Mammoth's massive underground complex attracts thousands of visitors on a yearly basis ranging from curious travelers to full-fledged explorers and spelunkers. Some of its more famous locations even have names, such as the massive Grand Avenue and the aptly named Fat Man's Misery.

The Park Service conducts daily tours of Mammoth lasting anywhere from one to six hours in length. Some of those tours are along relatively easy-guided paths while others venture far into the darkness to decidedly more challenging and cramped places. The popular Grand Avenue tour for instance is a 4-mile, four-hour trek that is physically demanding, while the hike to the beautiful Frozen Niagara is a much easier quarter-mile walk that is safe enough for both children and older visitors. Both provide fantastic views of the interior of the cave that simply must be seen to be believed.

If you're looking for a destination for an upcoming trip to a national park this summer, Mammoth Cave National Park is one of those places that will delight and amaze the entire family.

[Photo Credit: The National Park Service]

There is nothing more frustrating than having to seek medical assistance while traveling. It is bad enough to have something unexpected come up while you're at home, but at least your personal doctor is generally only a phone call away. But while you're on the road it can be difficult to find a specialist and booking an appointment can be a real challenge.

That's where ZocDoc can come in very handy. The service, which is available on both the web and as an Android and iOS app, allows users to quickly and easily find doctors, dentists and other specialists based on location. The website version of ZocDoc searches based on zip code while the mobile apps use the smartphone's built in GPS chip to locate options that are near by. Searches can be narrowed by looking for specific specialties (allergist, cardiologist, orthodontist, etc.) and you can even add a search criteria based on the insurance provider you'll be using.

When the search is complete, ZocDoc presents all the available options in a clean and easy to read format that includes addresses, reviews and a listing of the next available appointment. Tapping or clicking on an open date and time allows the user to then quickly and easily book that appointment.

Putting ZocDoc through its paces, I was impressed with just how simple the interface was both on the website and the iPhone app. It really is very easy to use the service to locate a doctor. Booking an appointment couldn't have been any easier either and the whole process took just a minute or two to complete.

For now, ZocDoc only works in the U.S. but for travelers who frequently move about the country, this could be an incredibly useful app. If you find yourself frequently on the road and occasionally needing medical assistance of some type, this service will come in very hand. While not expressly built for travelers, it certainly is a resource that we'll all be happy to have if we ever need it.

[Photo Credit: U.S. Airforce via Wikimedia]

One of the more interesting products currently in development at Google is a high-tech, wearable gadget known as Google Glass. In a nutshell, when worn like a typical pair of glasses, the device suspends a small LCD screen in your peripheral vision. When paired with a smartphone via BlueTooth, Glass is capable of displaying a variety of information without the user ever taking the phone out of their purse or pocket. Until recently, just exactly what information Glass could display, and what it would look like, remained a bit of a mystery. But earlier this week, Google released a video showing off the gadgets capabilities, some of which will come in very handy for travelers.

In the video, which you'll find after the jump, you'll see Google Glass helping someone navigate through a city, which is of course something we can all appreciate when visiting a new destination. Imagine simply asking the device to help you find a cafe, museum or other point of interest and then have it not only show you results, but also give you turn-by-turn navigation with visual prompts right on its tiny screen. That's something that would certainly come in handy when navigating the congested streets of Paris or Rome.

But navigation is just the tip of the iceberg. The video also shows a user asking for a language translation and then quickly being provided the word that he requested. I think we would all agree that translation would be extremely helpful when visiting many foreign locales. It is easy to see future versions of Glass also being able to listen to and automatically translate full conversations in real-time or even providing written translations of signs, menus and banners too.

A few weeks ago we shared leaked documents that gave us a glimpse of how the looming budget sequestration could impact America's national parks. Those documents indicated that the National Park Service would implement a hiring freeze, push back the hiring of seasonal help and possibly cut hours and services in order to deal with the potential lack of funds. At the time, we speculated that those choices could have an impact on the overall experience for park visitors this year but as more details emerge it seems that reduced staff is just the tip of the iceberg.

According to a new report from the Coalition of National Park Service Retirees (CNPSR), the same source that shared the original leaked documents, the direct impact of sequestration on some of the country's top national parks is becoming much clearer – not to mention grimmer. Some of the specific cuts include a delayed opening of some of the roads into Yellowstone this spring, which would affect more than 78,000 visitors and reduce revenues by $150,000. Similarly, the Grand Canyon would see delayed openings of its East and West Rim Drives, turning away an additional 250,000 visitors as well.

Delayed openings are just the start of the issues that travelers could be facing this year, however, as other parks will be closing down certain areas altogether. For instance, Grand Teton National Park will shutter two visitor centers and a preserve, impacting a combined 300,000 visitors, while Cape Cod National Seashore will close a visitor center as well, turning away 260,000 travelers. The Great Smoky Mountains National Park will have to operate without five campgrounds that typically house 54,000 visitors on an annual basis and Mt. Rainier will close its Ohanapecosh Visitor Center, which serves 85,000 people each year.

The CNPSR report has even more information on the impact of sequestration, which automatically goes into effect on March 1 provided the President and Congress aren't able to come to a budget compromise first. The document is a sobering read for fans of the national parks to say the least. I recommend that anyone planning a visit to one of the parks this year checks in ahead of time to find out exactly what services are being cut due to a lack of funds.

[Photo Credit: National Park Service]

With famous races like the Tour de France, Vuelta a Espana and Giro d'Italia, Europe certainly doesn't lack for great cycling events. This summer you can add a new long distance bike ride to the list, however, and unlike all of those others, you don't have to be a professional to take part.

Starting on August 2 of this year, the inaugural QuickEnergy Trans Continental Race will get underway from London, England, and will continue for more than 2000 miles across Europe before culminating in Istanbul, Turkey. But unlike most other races of this kind, there will be no preset route and riders are free to find their own way from start to finish. There will be a couple of mandatory checkpoints along the way, however, which will help to ensure that all the riders face similar challenges along the way. For instance, I think it is safe to say that at least one of the CP's will be located in the high passes of the Alps.

Also unlike other bike races, this is a completely unsupported event, which means there will be no team cars following along with extra tools, gear and supplies. Instead, all of the participants are expected to be fully self-sufficient, carrying everything they'll need for the journey with them at all times. This means each of the riders will have to make tough decisions about what is important to bring along and what needs to stay home. On a long distance race like this one, every ounce counts.