At http://phys.org/print294651259.html … a comet graveyard is in effect, the Asteroid Belt – although comets are not necessarily out like a snuffed light for keeps, some of them at least appear to be dormant. This is where the so called Lazarus comets come into the equation – dead comets raising hints of life by brief bursts of activity, the subject of a recent paper in Monthly Notices of the Royal Astronomical Society.
On the same or similar vein we have at http://cosmictusk.com/right-on-maggie-mckee/ … a return to the theme of the Russian meteor that exploded over Chelyabinsk in February 2013, as it seems it had some unseen and unrecorded accomplices. A new study suggests it did not just have some chums for the journey in space but was in fact a gang member – and this mob still threatens the Earth. (Update … this post appears to have disappeared or was added to another post as the link doesn't work today).
At http://cosmictusk.com/the-beeb-bbc-picks-up-harvard-evidence-for-younger… … Simon Redfearn, on BBC News, said new data from Greenland ice cores suggested N America suffered a large cosmic impact 12,900 years ago, citing the recent Harvard paper published by PNAS.
At http://craterhunter.wordpress.com/2013/08/03/a-minnesota-field-trip/ … Dennis Cox tells us he has a field trip planned to see if there is any evidence the said comet event near what was the ice sheet (in the Ice Age). Not sure if this applies to the Younger Dryas event as it was preceded by a couple of thousand years of warming. However, he has spotted some interesting things in the past – so, good luck.
Finally, at http://phys.org/print294653189.html … NASA/SDO plan to launch the VERIS rocket this month (August, 2013) in order to measure properties of the structures in the Sun's upper atmosphere. Interesting times.