Eclectic Perambulations in the Noosphere
Noctis Labyrinthus
Layers in the lower portion of two neighboring buttes within the Noctis Labyrinthus formation on Mars are visible in this image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
Sunspots have returned at last, after a worryingly dormant solar minimum.
To celebrate, here are four current solar pictures from"NASA's Solar And Heliospheric Observatory (SOHO).
They're the sun at 304 Angstrom, 171 Angstrom, 195 Angstrom and 204 Angstrom.
In southeastern Mongolia, roughly halfway between Ulaanbaatar and Beijing, is an ancient crater, called Tabun Khara Obo.
