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SYFY WIRE Bad Astronomy

Geronimo! Allons-y! Fantastic!

By Phil Plait
envisat_uk_cloudfree.jpg

Iâve often wondered: When The Doctor watches the screens on the central console of the TARDIS, what does he see right before landing on Earth?

If I had to guess, Iâd say THIS:

[Click to enraxacoricofallapatorianate.]

Thatâs the view of Great Britain, Ireland, and the north of France as seen by Envisat, an Earth-observing satellite. That area is very rarely entirely cloud-free, but on Mar. 28, 2012 this is how it looked from nearly 800 kilometers (490 miles) above the Earthâs surface. The view is astonishing, but I am particularly drawn to the wash of sediment from rivers out to sea, especially on the southeast of England where you can see the Thames bringing sediment into the North Sea. You should really grab the bigger version to see it clearly.

Sadly, Envisat suddenly ceased operations shortly after this image was taken, in April 2012, and was declared dead by the European Space Agency a month later. More Earth-observing birds are planned for launch starting later this year, but itâs bad news to have lost such a magnificent instrument.

If only we knew someone who could swoop in and save the day, maybe hitting the dead sat with a beam from some sort of sonic-based toolery to re-energize it. Ah, well.

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