
Rings in 'tree stump' crater found on Mars illuminate red planet's past climate
CNN
A Martian crater that looks a lot like a tree stump from above is shedding light on the history of the red planet.
Just as a tree's concentric rings can give us detailed information about Earth's past climate, the patterns inside the crater illuminate the history of the red planet, according to the European Space Agency (ESA).

Janet Mills and her allies are counting on a gender gap to narrow Platner’s wide lead ahead of the June 9 primary to decide who will face incumbent Republican Sen. Susan Collins. They are betting that the unfiltered style that has brought Platner widespread attention as someone who could help Democrats reach young men will backfire with women.

As a shrinking number of Transportation Security Administration agents work to keep hourslong security lines moving despite not being paid, President Donald Trump stepped into the fray Saturday, announcing he will send Immigration and Customs Enforcement officers to airports by Monday if Congress doesn’t agree to a plan to end the partial government shutdown.











