[Friday, August 1, 2008] As avid followers of New Horizons know, our spacecraft has been mostly hibernating since February, and will continue to so do until Sept. 2, when we will wake it to begin its second annual checkout.

[Thursday, August 7, 2008] Is Pluto a planet? What defines a planet? Are other planets yet to be discovered? Join Dr. Neil deGrasse Tyson, and Dr. Mark Sykes, Planetary Science Institute, as they square off in a debate of these questions during this free, one-hour webcast.

[Tuesday, August 12, 2008] Mark Sykes says that if a non-stellar object is massive enough to be round and orbits a star, it ought to be a planet. The key here is that once an object gets that big, important geophysical processes begin.

[Wednesday, August 20, 2008] A "minor planet" with the prosaic name 2006 SQ372 is just over two billion miles from Earth, a bit closer than the planet Neptune.