Week 4: Overcast skies as Sagan Station searches for “pale blue dot“
Article first published online: 3 JUN 2011
©1997. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 78, Issue 32, pages 329–330, 12 August 1997
How to Cite
1997), Week 4: Overcast skies as Sagan Station searches for “pale blue dot“, Eos Trans. AGU, 78(32), 329–330, doi:10.1029/97EO00215.(
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
ARES VALLIS, MARS—Earth-bound astronomers know the problem. You finally get your telescope time. You go up to the mountain. And it's socked-in by clouds—you can't get the data.
Now Mars Pathfinder knows the same problem. Pathfinder, also known as the Sagan Memorial Station, was attempting to observe the bright morning “star,” Earth. It was Pathfinder's sixteenth day on the planet, and Earth had risen several hours before the Sun. The IMP (Imager for Mars Pathfinder) team from the University of Arizona was eager to get this image of our home world—in part because it might inspire the public, and in part because Earth is one of a variety of astronomical targets that are used to help determine how much dust is suspended in the atmosphere.