reception in a bar in Amsterdam
| Comet Hale-Bopp, March 1997, near &xi Andromedae. The blue tail of the comet is a plasma of ions and electrons and points away from the Sun, while the broader white tail is composed of dust grains and points away from the comet's direction of motion. In the background note the five bright stars of Casseopiea to the upper right, the Perseus double cluster in the upper left, and the Andromeda galaxy M31 next to the tree at the bottom of the phtograph. | |
| The constellation of Orion, defocussed to show colours. The star-forming region contains many hot young stars, which appear blue. The bright star to the upper left is Betelgeuse, a red supergiant, and the red object in Orion's sword is the famous Orion nebula M42, where most of the light we see comes not from stars but from emission lines of ionised gas. | |
| Last-quarter moon over Great Wall of China | |
| My thesis getting a tremendous reception in a bar in Amsterdam |
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| A warning sign outside the MPA entrance | |