Rosetta to fly near asteroid Steins
Rosetta has been awakened for it's September 5 rendezvous with the asteroid Steins.
View ArticleViking may have destroyed Mars organics - Reanalysis with Phoenix data
http://www.universetoday.com/72811/viking-experiment-may-have-found-life%E2%80%99s-building-blocks-on-mars-after-all/#more-72811 It is argued that the Phoenix data shows that the Viking experiments may...
View ArticleIBEX finds the heliosheath with ribbon shape
http://www.nasa.gov/mission_pages/ibex/news/solar-boundary.html
View ArticleVaruna - ellipsoid.
http://www.unmannedspaceflight.com/index.php?showtopic=6723&pid=165180&st=0&#entry165180 By observing the star coverage that Varuna has a size of 660-1130 km. In the near future to publish...
View ArticleThe search bright TNO on the southern sky.
http://www.mikebrownsplanets.com/2010/10/heading-south-looking-up.html Beautiful overview of Michael Brown. It seems the famous astronomer, does not lose shape and continues to search for planets...
View ArticleEris vs Pluto
Apparently Eris may well be smaller than Pluto. Hmmmm. (Incidentally Eris is located in the Scattered Disc, not the Kuiper Belt, so Pluto has never actually lost the status of largest Kuiper Belt object)
View ArticleVenus' Atmosphere - Sulfuric Acid -> Sulfur Dioxide
It appears that Venus has a layer of Sulfur Dioxide. Xi Zhang, et.al ran simulations showing that Sulfuric Acid droplete freezes to high altitudes where the sunlight breaks down to produce Sulfur...
View ArticleMercury's hidden side imaged
Messenger flew by Mercury yesterday. The first images are online. This side looks different because of the *huge* rays emanating from Kuiper crater. Incredible! PS. Mercury's other hemisphere was the...
View ArticleYoung Solar System's Fifth Giant Planet?
Maybe our serene and well ordered solar system has had a very turbulent past. http://arxiv.org/abs/1109.2949
View ArticleNASA science update about Europa
NASA Hosting Science Update about Jupiter's Icy Moon Europa NASA will host a Science Update at 1 p.m. EST on Wednesday, Nov. 16, to discuss new theories concerning Jupiter's icy moon Europa. The event...
View ArticleEffect of Jupiter on Earth impact rate
Quantifying Jupiter's influence on the Earth's impact flux: Implications for planetary habitability Looks like the idea that you need a Jupiter to protect against impacts doesn't really work so well.
View ArticleVenus' changing rotation rate?
http://www.universetoday.com/93494/is-venus-rotation-slowing-down/ Thoughts?
View ArticleUranus Aurorae observed from Earth
Finally. http://spaceref.com/uranus/auroras-on-uranus-seen-from-earth.html Notable for general ice giant studies. I feel the ice giants are the least understood type of planet. They've always...
View ArticleThe faint young Sun problem
The faint young Sun problem Nice review of the faint young Sun problem and various proposed solutions. So far this issue has not yet been resolved in a satisfactory manner. Presumably other habitable...
View Articleplate tectonics
Many sugested it is impossible on smaller planets than earth including venus and exoplanets but surprise http://www.sciencedaily.com/releases/2012/08/120809155831.htm
View ArticleOrientation of the Uranian satellites
NOTE: Explaining why the Uranian satellites have equatorial prograde orbits despite the large planetary obliquity Explaining the current orbital configuration of the Uranian regular satellites...
View ArticleUranus and Neptune
What do we Really Know about Uranus and Neptune? Despite usually being regarded as "twin planets", Uranus and Neptune may have very different internal structure. This may be because of the effects of...
View ArticleIAU redefinition of the astronomical unit
New Scientist: Sizing up a new measuring ruler for the solar system The IAU has voted to change the definition of the astronomical unit. It is now defined as being exactly 149597870700 metres, and the...
View ArticleThe waters of Mars
Curiosity has found some rounded rocks that look like they may have been eroded by a stream. Curiosity finds evidence of ancient stream on Mars
View ArticleEarly Mars and the faint young Sun
3D modelling of the early Martian Climate under a denser CO2 atmosphere: Temperatures and CO2 ice clouds Still no convincing model to get a climate supporting liquid water on early Mars.
View Article
