Double Whammy: Asteroids Delivered One-Two Punch

Senior Science Writer

A pair of 35-million-year-old craters on Earth thought to have been carved by comets now appears to be the result of a broken asteroid that generated a slowly delivered shower of debris over millions of years.

One crater is in Chesapeake Bay off the Maryland coast. The other, called the Popigai crater, is in north-central Siberia. Estimates of their age suggest they were created a mere 10,000 years apart.

john

www.space.com...

Nothing new, forces caused by strong enough gravity can break asteroids to pieces same way comets. (like Shoemaker-Levy 9)

There are also double craters like Clearwater lakes in Canada

www.solarviews.com...
www.lpi.usra.edu...

And other propable double crater is Suvasvesi North and South in Finland.

www.somerikko.net...
www.somerikko.net...


www.tsgc.utexas.edu...


Here's one crater chain from Jupiter's moon Ganymede.
antwrp.gsfc.nasa.gov...

www.boulder.swri.edu...