Back out to the astrosphere. Let's see what's out there.
Today's amateur astrophoto is from Bad Astronomy/Universe Today forum member
clop
. It's a beautiful shot of the globular cluster Omega Centauri. You can see
this and a photo of M83 in the forum
.
First off, Emily Lakdawalla from the Planetary Society debunks the discovery of puddles on Mars. Apparently, they were on the side of a cliff.
We think we know what life looks like, but would we recognize non-carbon life if we saw it?
The Daily Galaxy
has an interesting story on this
.
It's time to go to school. First, the
Astroprof
explains
how magnitudes work
. And then
Dr. Pamela Gay
describes what
a sidereal day is
.
Now this is just crazy. Space entrepreneur Rick Tumlinson is working on a company that will let people skydive from space. Well, from 36,000 metres (120,000 feet).
Alan Boyle
has the details
.