Showing posts with label Tatooine. Show all posts
Showing posts with label Tatooine. Show all posts

Wednesday, August 24, 2016

First Vulcan, then Tatooine, and now Krypton has been found?

An artist's rendering of what the surface of Proxima b might resemble.

Proxima Centauri, a red dwarf in the constellation Centaurus, is the closest star to us (except for our sun).  It lies a little over four light-years from here and astronomers using the European Southern Observatory telescopes have announced evidence of a planet orbiting the red dwarf.  What is most exciting about this is the planet is in the 'sweet zone', the optimum distance from a star where liquid water (and therefore, life) can exist on the surface.

It is the closest exo-planet to Earth that could sustain life.  The Pale Red Dot team took its name from an image from Voyager 1, taken in 1990.  It took a picture of Earth and was called the Pale Blue Dot.  Since Proxima Centauri is a red dwarf star...you see where this is going.

Okay, so it isn't Krypton.  Everybody knows that Krypton exploded years and years ago and even before that, it was about fifty light-years from Earth.  But it still exciting to find a planet so (relatively) close to us.  It presents the perfect stepping stone as the first planet to explore as we venture into deep space.


Planet Found in Habitable Zone Around Nearest Star - Pale Red Dot campaign reveals Earth-mass world in orbit around Proxima Centauri: Astronomers using ESO telescopes and other facilities have found clear evidence of a planet orbiting the closest star to Earth, Proxima Centauri. The long-sought world, designated Proxima b, orbits its cool red parent star every 11 days and has a temperature suitable for liquid water to exist on its surface. This rocky world is a little more massive than the Earth and is the closest exoplanet to us — and it may also be the closest possible abode for life outside the Solar System. A paper describing this milestone finding will be published in the journal Nature on 25 August 2016.

Tuesday, June 14, 2016

NASA Might Be Close to Finding Tatooine


NASA announced earlier this week they have discovered a gas giant about the size of Jupiter, orbiting a two-star system, roughly 3700 light years away.

We all remember in the beginning of Star Wars – Episode IV: A New Hope Luke Skywalker looking hot (and that has nothing to do with him being on a desert planet), watching the two suns set on the horizon while John Williams’ music the Force Theme swells in the background.

Now you’re saying, “Hey!  Tatooine isn’t a gas giant.  It’s just a rock in space!”

True, but planet Kepler-1647b is in the “habitable zone” a range of distances from a star where liquid H2O could exist on the surface of a planet.  Although Kepler-1647b is a gas giant, there is the possibility it has moons large enough to sustain life.

Kepler-1647b is not the only planet found to be orbiting two suns but it is the largest.  It takes 1107 days to complete a single orbit which is the longest of any exo-planet discovered so far, which is why it took so long to confirm it.  Its transit across its suns was noted back in 2011 from data acquired by the Kepler Space Telescope launched in 2009.  The telescope discovers planets when they cross in front of their host sun, causing a dip in the sun’s brightness.


The Kepler Space Telescope’s initial observations ended in May 2013, when two of the four orientation-maintaining reaction wheels failed, but scientists still have mountains of data to sort through.  In 2014, mission members found a way to stabilize Kepler using “sunlight pressure”.  So Kepler is back in business and has discovered over 2200 alien planets to date.