Monday 1 April 2019

Between Galaxies

Poul Anderson, Tau Zero, CHAPTER 16.

The Leonora Christine approaches another galaxy in mere weeks of ship's time. Remote, isolated, tiny smudges and radiant points are other galaxies. In intergalactic space, the ship passes an ancient red dwarf star with planets where there might be life but with starless nights.

Intergalactic Journeys

In Tau Zero, one relativistic spaceship flies through the empty spaces between groups of groups of galaxies until the universe contracts;

in World Without Stars, spaceships make instantaneous jumps to other galaxies or to extra-galactic planetary systems;

in The Avatar, T machines carry a spaceship to any place or time in this universe and eventually to a point of inter-cosmic interaction and new creation;

in James Blish's The Triumph Of Time, groups of groups of galaxies form spiral arms around the Metagalactic Center to which a planet flies faster than light to create new universes after the matter-antimatter cosmic collision.

4 comments:

Sean M. Brooks said...

Kaor, Paul!

I think I got bogged down in the third of Blish's Flying Cities books and lost interest in the series. But THE TRIUMPH OF TIME does sound interesting. And the bit about antimatter reminded me of Anderson's "In The Shadow."

Sean

paulshackley2017@gmail.com said...

Sean,
But matter and antimatter mutually annihilate, converting each other into energy, whereas shadow matter is merely difficult to detect.
Paul.

Anonymous said...

Once again, I'm afraid not:
http://convertalot.com/relativistic_star_ship_calculator.html
To cross 10e6 ly in 1 mo. (28.4 days) ship's time requires a 500 G acceleration.

"T machines carry a spaceship to any place or time in this universe."
While "T-Machine" stands for "Tipler Machine," it may not have occurred to P A that it could also stand for "TARDIS".

-kh

paulshackley2017@gmail.com said...

Probably not...