It was there a few months ago—but now it’s gone. Astronomers have no idea why:

Jupiter has lost one of its prominent stripes, leaving its southern half looking unusually blank. […]

The band was present at the end of 2009, right before Jupiter moved too close to the sun in the sky to be observed from Earth. When the planet emerged from the sun’s glare again in early April, its south equatorial belt was nowhere to be seen.

Check it out:

Here’s a fascinating story we haven’t heard a word about from one of our favorite science blogs, Phil Plait’s Bad Astronomy:

The Japanese mission Hayabusa (“Falcon”) has been nothing if not ambitious. Launched in 2004, it reached the bizarre asteroid Itokawa a little over a year later. It took phenomenal images and other measurements, and even landed on the asteroid itself to take samples, destined to be returned to Earth.

But it has suffered a series of crippling mishaps that have threatened the mission time and again with failure. However, despite all that, the end game is in sight: Hayabusa is almost back home, and on June 13, sometime around 14:00 UT, the sample recovery capsule will parachute down to the Earth.