Asteroid (216) Kleopatra has been interesting to astronomers for a long time because its brightness is highly variable, but it seems to get more interesting every time somebody looks at it with a new instrument. This week a paper was published in Icarus revealed that it's 30 to 50% empty space.
Jupiter, always a pretty sight in the sky, is now worth visiting every day; the "outbreak" that heralds the return of Jupiter's formerly red, now fadedsouth equatorial belt is expanding and multiplying.
An awful lot of the talks in the Pluto session on Tuesday morning, October 5, at the Division of Planetary Sciences meeting spent more time focusing on how bad weather conditions were during the astronomers' attempts to view Pluto as it occulted background stars than they did on any measurements or science that came out from the data.
Following up on the story I first posted on August 22, the Jupiter impact fireball first noticed by Japanese amateur astronomer Masayuki Tachikawa has been independently confirmed by two other Japanese astronomers.
Via Daniel Fischer's Tweet about a blog entry by Astro BobI learned of something which should be obvious to anyone who has trained even a rather small telescope on Jupiter over the past few weeks: one of its iconic stripes is just plain gone.
I am pretty sure this image shows the LCROSS impact plume and its shadow as seen from the MMT observatory in Arizona, but as Alan Boyle just pointed out, the time stamps indicate the photos were all taken before the nominal impact time.