space travel

You Could Travel Through a Wormhole, but it’s Slower Than Going Through Space

You Could Travel Through a Wormhole, but it’s Slower Than Going Through Space

Special Relativity. It’s been the bane of space explorers, futurists and science fiction authors since Albert Einstein first proposed it in 1905. For those of us who dream of humans one-day becoming an interstellar species, this scientific fact is like a wet blanket. Luckily, there are a few theoretical concepts that have been proposed that indicate that Faster-Than-Light (FTL) travel might still be possible someday.

Using Black Holes to Conquer Space: The Halo Drive!

Using Black Holes to Conquer Space: The Halo Drive!

The idea of one day traveling to another star system and seeing what is there has been the fevered dream of people long before the first rockets and astronauts were sent to space. But despite all the progress we have made since the beginning of the Space Age, interstellar travel remains just that – a fevered dream. While theoretical concepts have been proposed, the issues of cost, travel time and fuel remain highly problematic.

Method of making oxygen from water in zero gravity raises hope for long-distance space travel!

Method of making oxygen from water in zero gravity raises hope for long-distance space travel!

Space agencies and private companies already have advanced plans to send humans to Mars in the next few years – ultimately colonizing it. And with a growing number of discoveries of Earth-like planets around nearby stars, long-distance space travel has never seemed more exciting. 

NASA reignites program for nuclear thermal rockets

NASA reignites program for nuclear thermal rockets

In its pursuit of missions that will take us back to the Moon, to Mars, and beyond, NASA has been exploring a number of next-generation propulsion concepts. Whereas existing concepts have their advantages – chemical rockets have high energy density and ion engines are very fuel-efficient – our hopes for the future hinge on us finding alternatives that combine efficiency and power.

Neutron stars could be our GPS for deep space travel

Neutron stars could be our GPS for deep space travel

NASA’s Neutron Star Interior Composition Explorer, or NICER, is an X-ray telescope launched on a SpaceX Falcon 9 rocket in early June 2017. Installed on the International Space Station, by mid-July it will commence its scientific work – to study the exotic astrophysical objects known as neutron stars and examine whether they could be used as deep-space navigation beacons for future generations of spacecraft.

Could Space Travelers Melt As They Accelerate Through Deep Space?

Could Space Travelers Melt As They Accelerate Through Deep Space?

Forty years ago, Canadian physicist Bill Unruh made a surprising prediction regarding quantum field theory. Known as the Unruh effect, his theory predicted that an accelerating observer would be bathed in blackbody radiation, whereas an inertial observer would be exposed to none. What better way to mark the 40th anniversary of this theory than to consider how it could affect human beings attempting relativistic space travel?

Pioneering Space Requires Living Off the Land in the Solar System

Pioneering Space Requires Living Off the Land in the Solar System

As NASA continues preparing for the Journey to Mars, the technology now in development is expanding beyond the spacecraft and propulsion systems needed to get there. NASA scientists and engineers also are developing systems to harness abundant resources available in the solar system to support these pioneering missions.

Interstellar greenhouses: how a single molecule could be key to growing plants in microgravity

Interstellar greenhouses: how a single molecule could be key to growing plants in microgravity

In the film The Martian, Matt Damon’s character survives being stranded on another planet by growing potatoes in his own faeces. And if we want to visit or maybe even settle on other planets for real, we’ll have to find a way to grow plants outside the safe environment of the Earth. On long space voyages in particular, plants will provide a vital source of food and oxygen.

Astronaut’s return to Earth will prepare us for mission to Mars – here’s why

Astronaut’s return to Earth will prepare us for mission to Mars – here’s why

Would you like to spend a year gazing down from the International Space Station? Before you pack your bag, you should think about what actually might happen to you in microgravity, away from the protection of the atmosphere and magnetosphere. Thanks to two astronauts who’ve recently landed back on Earth, we’ll now be able to find out.