[SunkenCiv]

ASOW: From the Big Bang to the Nobel Prize and the End of the Universe by John C. Mather

I had to look it up -- ASOW is "Astronomy Seminar of the Week".

• Mars Team Energized About "Sleepy Hollow" Near Rover
• Mars rovers find more evidence of water -- and some oddities
• 'Cave entrances' spotted on Mars
• 'Cave entrances' spotted on Mars
• Possible New Mars Caves Targets in Search for Life (NASA and ASU's latest THEMIS discovery)
• Windows onto the abyss: cave skylights on Mars
• Deep Hole Found on Mars
• NASA Orbiter Finds Possible Cave Skylights on Mars
• NASA spacecraft finds possible Mars caves
• 7th-Graders Discover Mysterious Cave on Mars
• Why Does that Martian Crater have a Hole?

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[WSGilcrest]

I had to stare and squint for several minutes before the slopes surrounding the hole appeared concave.

[TheOldLady]

That looks like the pointy end of a pencil pointed straight at the camera.

Sigh... Rorschach strikes again.