The latest in aviation technology is from the distant past. Airships are back, in the shape of the huge Bullet 580. The 76-metre long Bullet is the world's largest airship, taking more than six hours to inflate, says manufacturer E Green Technologies.
The airship can stay at high altitude for long periods, offering near-space experiences for scientists, and offering a remote communication and observation base, monitor military situations and keeping watch on oil spills, bushfires or even pirates.
E Green says its new airship "offers cost-efficient operations versus fixed-wing aircraft". It will cost $8 million, or can be rented for $500,000 a month.
The first test flight is due to take place later this year.
E-Green chairman Michael Lawson said the new airship wasn't your typical blimp.
"Airships have undergone surprisingly little evolution throughout their more than 150-year history," he said.
"Our airships are radically different designs that move beyond the performance limitations of traditional blimps or zeppelins by combining advanced technology with simple construction and the ability to fuel with algae, protecting our environment."
Mr Lawson told MSNBC that hard landings are a far more comfortable experience that than normal planes.
"If you hit a hard landing with any of our airships, it's just going to kind of bounce," he said.
Airships or blimps were widely used before the 1940s, which was followed by numerous accidents, including the 1937 Hindenburg explosion that killed 37 people.