interstellar travel

Pros and cons of various methods of interstellar travel

Pros and cons of various methods of interstellar travel

It’s a staple of science fiction, and something many people have fantasized about at one time or another: the idea of sending out spaceships with colonists and transplanting the seed of humanity among the stars. Between discovering new worlds, becoming an interstellar species, and maybe even finding extra-terrestrial civilizations, the dream of  spreading beyond the Solar System is one that can’t become reality soon enough!

One Scientist Has a Plan to Send the Building Blocks of Life to Distant Exoplanets

One Scientist Has a Plan to Send the Building Blocks of Life to Distant Exoplanets

A German theoretical physicist has proposed a modification to the first-ever interstellar spacecraft that would allow it to decelerate enough to orbit an exoplanet and potentially seed a second Earth. However, the 12,000-year-long transit time could make garnering support for the mission difficult.

Astronomers Just Found the First Interstellar Object From Beyond our Solar System

Astronomers Just Found the First Interstellar Object From Beyond our Solar System

This month, scientists were able to confirm for the first time that a visitor from another part of the galaxy has entered our neck of the celestial woods. This strange space rock, initially thought to be a comet, is the first interstellar object we have ever been able to observe within our solar system.

Reaching the Stars: Is Human Hibernation Really Possible?

Reaching the Stars: Is Human Hibernation Really Possible?

We’ve spent a few articles on Universe Today talking about just how difficult it’s going to be to travel to other stars. Sending tiny unmanned probes across the vast gulfs between stars is still mostly science fiction. But to send humans on that journey? That’s just a level of technology beyond comprehension.

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?

Why sailing to the stars has suddenly become a realistic goal

Why sailing to the stars has suddenly become a realistic goal

Declaring interstellar travel to be in our reach would seem far out to many. However with the Starshot initiative with its 100 million dollar pledge to investigate the use of light to propel spacecraft out of our solar system, aspiring to traverse to neighboring stars might actually bring it the within the realms of possibilities.  For the first time in human history Interstellar travel might be an achievable aspiration!

How to build a starship – and why we should start thinking about it now

How to build a starship – and why we should start thinking about it now

With a growing number of Earth-like exoplanets discovered in recent years, it is becoming increasingly frustrating that we can’t visit them. After all, our knowledge of the planets in our own solar system would be pretty limited if it weren’t for the space probes we’d sent to explore them.

New destination for space-faring civilizations?

New destination for space-faring civilizations?

Globular star clusters are amazing in almost every way. They’re densely packed, holding a million stars in a ball only about 100 light-years across on average. They’re old, dating back almost to the birth of the Milky Way. And according to new research, they also could be extraordinarily good places to look for space-faring civilizations.