Posted by Emily Lakdawalla on 2011/02/23 12:47 CST
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.
Posted by Emily Lakdawalla on 2010/10/25 11:18 CDT
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.
Posted by Emily Lakdawalla on 2010/08/24 11:36 CDT
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.
Posted by Emily Lakdawalla on 2010/08/22 05:03 CDT
Yet another Jupiter impact!? August 20, seen from Japan
Posted by Emily Lakdawalla on 2010/05/10 05:22 CDT
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.
Posted by Ken Kremer on 2009/05/22 05:13 CDT
Farewell to Hubble, Obama Calls, Astronauts Testify to Congress as Shuttle is Set to Land
Posted by Emily Lakdawalla on 2004/11/11 07:10 CST
Uranus has the unfortunate reputation of being the most boring planet in the solar system. But where it appeared to be a nearly featureless, hazy blue ball to Voyager 2, it is now blooming dozens of clouds that are visible to the sharp-eyed Keck II Telescope.
Posted by Emily Lakdawalla on 2004/09/29 12:00 CDT
This morning, asteroid 4179 Toutatis was so close to Earth that simultaneous observations from two telescopes in the same country could show parallax that is obvious even to the least experienced observer. The two telescopes belong to The European Southern Observatory and are located at La Silla and Paranal in Chile