Planet-forming Lifeline Discovered in a Binary Star System - ALMA Examines Ezekiel-like “Wheel in a Wheel” of Dust and Gas
For the first time, researchers have detected a streamer of gas flowing from a massive outer disc toward the inner reaches of a binary star system. This never-before-seen feature may be responsible for sustaining a second, smaller disc of planet-forming material that otherwise would have disappeared long ago. Half of Sun-like stars are born in binary systems, meaning that these findings will have major consequences for the hunt for exoplanets. (ESO)
vapor trail
n-a-s-a: The Andromeda Galaxy is 2 million light years away from us so what we see now is how it appeared 2 million years ago. It will collide with our Milky Way in 2 billions years from now. The two galaxies are heading towards each other at a rate of 430 km/hr. A billion years from now Andromeda will loom as a spectacular site eventually swelling to fill half of the night sky.
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