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Why can Hubble get detailed views of distant galaxies but not of Pluto?
Posted by Emily Lakdawalla on 2013/02/14 12:37 CST | 15 comments
How come Hubble's pictures of galaxies billions of light years away are so beautifully detailed, yet the pictures of Pluto, which is so much closer, are just little blobs? I get asked this question, or variations of it, a lot. Here's an explainer.
A forgotten image of Earth and the Moon
Posted by Emily Lakdawalla on 2013/02/13 07:45 CST | 4 comments
While researching another story, I came across an image I don't remember ever seeing before, of a moonrise from an unexpected source.
The Earth is a Planet: Why We Explore Space
Posted by Bill Dunford on 2013/02/11 10:50 CST
Why spend effort and scarce resources on space exploration when we have so many problems here at home? Turns out, there are some pretty good reasons.
Browsing Landsat data is a lot easier than I thought it was
Posted by Emily Lakdawalla on 2013/02/08 05:05 CST | 2 comments
With the Landsat Data Continuity Mission scheduled to launch on Monday, there's been a lot of Tweeting about Landsat, and through one such Tweet I learned about a resource that I hadn't known existed before: the LandsatLook Viewer. This is a graphical interface to more than a decade worth of Landsat data, a tremendous resource for anyone interested in Earth's changing surface, natural or manmade.
Pretty picture: tessera terrain on Venus
Posted by Emily Lakdawalla on 2013/02/07 04:18 CST | 1 comments
In which I dive into the Magellan radar data set and come up with some images of an unusual and possibly unique solar system terrain: tessera.
Venerable Deep Impact spacecraft has photographed comet ISON
Posted by Emily Lakdawalla on 2013/02/05 05:24 CST | 6 comments
Deep Impact has made the first space-based observations of comet ISON.
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