Archive for space

Finally, a planet just like home, but somewhere else

Posted in Finds, Thoughts with tags , , , , , , on October 3, 2010 by Mitch Leuraner

Scientists have discovered the first ever exoplanet likely to be inhabitable: So the race is on to see who will develop interstellar travel first….

If we can get to Gliese 581g before the Glisesians get to Earth, we might be able to use the element of surprise to our advantage.  If not, we better hope that they wasted all of their time developing spaceships instead of weapons.

A universe without a big bang?

Posted in Finds, Thoughts with tags , , , , , , , , , , on August 2, 2010 by Mitch Leuraner

Could Stephen Hawking be wrong?  Wun-Yi Shu, an associate professor at National Tsing Hua University in Taiwan, has proposed a new cosmological model that is able to describe the universe as well as Big Bang theory can, but without having to rely on a big bang, a big crunch or dark energy.

And the best part? In Shu’s model the speed of light and the gravitational “constant” are not constant! Instead, they vary with the evolution of the universe.  (Is that a loophole big enough for intergalactic travel in our future?)

Basically, Shu proposes that time and space can be converted into one another using a varying speed of light as the conversion factor. He thinks that mass and length should also be interchangeable, using a varying gravitational “constant” and a varying speed of light as conversion factors as well.

Essentially, time is converted into space and mass is converted into length, as the universe expands.

You can find the paper here: Cosmological Models with No Big Bang, or just grab the PDF directly.

Lost in space

Posted in Finds, Random with tags , , , on March 19, 2010 by Mitch Leuraner

I really like space pictures, and today there are two new good ones!  The first comes courtesy of the NASA’s Planck mission, which launched in May 2009.  It shows the Milky Way’s spiral disk and surrounding dusk clouds.

The Milky Way from NASA's Planck Mission

The Milky Way from NASA's Planck Mission

This second image was taken by the Cassini spacecraft. It shows Saturn’s rings from a view not normally visible from Earth.

The Far side of Saturn

The Far side of Saturn