Return to … Paranal

After ten years … again back to Paranal. One of the most amazing observatories in the world, if not the most alien. Mauna Kea in Hawaii is very beautiful, but gentle, with the smooth slopes of the volcanoes. So gentle, that it is difficult to notice the presence of the Mauna Loa, the largest volcano

The Eclipse from WISE

WISE flew through the Moon’s shadow over the North pole during the 04 Jan 2011 solar eclipse. The plot below shows the number of coarse digital Sun sensors giving usable output, and the number fell to zero during the eclipse. Since this eclipse was much shorter than the eclipses by Earth around the June solstice,