The American Astronomical Society (AAS) conference is in full swing in Long Beach, Calif., and this morning’s sessions can be summarized as follows: There’s more exoplanets than you can shake an exostick at.
Earth-Sized Alien Worlds Orbit One in Six Stars: About 17 percent — one in six — of Kepler’s target stars have Earth-sized worlds orbiting closer to their parent stars than where Mercury orbits the sun.
The Crusades Part 2 - Cannibals? - Islamic History Podcast #2
This video is for the Lost Islamic History podcast. This episode looks at the continued Crusader march through Muslim lands on their way to Jerusalem from 1098 to 1099. We will see the massacre and cannibalism of the city of Maarrat al-Numan and the capture of Jerusalem by the Crusaders in 1099.
The Crusades Part 1 - The Fall Of Antioch - Islamic History Podcast #1
This video is for the Lost Islamic History podcast. This episode looks at the causes of the Crusades and the early march of the Crusaders through Muslim territory and the lead up to the capture of Jerusalem.
The first-ever image of a massive river system on another world.
This image was taken by the space probe Cassini, and shows what appears to be a massive river system on Saturn’s moon Titan.
The European Space Agency reports that it flows 400 km across the cloudy moon’s surface, where it meets a large sea. This is most likely a river made of liquid ethane or methane, not water. Though previous Cassini observations of Titan revealed what appeared to be seasonal lakes there, this is the first confirmation we’ve had that the moon also has long, meandering rivers that form tributaries just like water does on Earth.
Infographic of The Worlds Oldest Trees by Vienna-based graphic designer Michæl Paukner.
The lines of this chart connect the world’s oldest trees to their geographical place of origin.
Source Flickr / michaelpaukner
That bright dot in the center of this image is Hercules A, a galaxy located over two billion light-years from Earth. But what really dominates the scene are the two gargantuan jets of plasma shooting out of Hercules A.
The plasma jets themselves are each over a million light-years long, meaning you could lay ten copies of the entire Milky Way end-to-end inside each one of the jets. The jets themselves aren’t visible in the wavelengths we’re used to — they only show up when this area of space is imaged in radio waves.