Searching for exoplanets

With the BBC noting a somewhat speculative report on a newly discovered exoplanet, Wasp 12b, here’s a short informative video from ESA Euronews on the ongoing search for planets beyond our solar system. And here are some previous posts on the topic. Pete Baker

Clearing the cosmic fog

As the BBC noted, astronomers using ESO’s Very Large Telescope [VLT] have confirmed that galaxy UDFy-38135539, one of several candidates identified in the Hubble Ultra Deep Field (UDF) image of the Fornax Constellation acquired with the telescope’s new Wide Field Camera 3 last year, is the most distant galaxy ever detected. [Image credit: NASA, ESA, G. Illingworth (UCO/Lick Observatory and University of California, Santa Cruz) and the HUDF09 Team] Spectroscopic analysis of data collected during a 16 hour observation using the VLT identified a red shift …

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“on the timescales involved in this event, we’re really catching it in the moment of happening”

When the comet-like asteroid P/2010 A2 was identified as a suspected asteroid-asteroid collision in January this year it was the first such collision caught “in the act”.  Images Credit: NASA, ESA, and D. Jewitt (UCLA). As the BBC notes, subsequent observations by the Hubble Space Telescope and the Rosetta probe suggest that the collision probably occurred in early 2009. Here’s a sequence of Hubble observations from January to May 2010, with scale. As the associated text explains The asteroid debris, dubbed P/2010 A2, appears to be …

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If all else fails, hit it with a hammer…

Or, as I was tempted to title this post, “Floating in a tin can…”  ANYhoo…  Having eventually fixed the toilet in the US segment, last weekend [31 July] the crew of the International Space Station were forced to reduce power, and suspend scientific experiments, when half their cooling system suddenly shut down. Trouble arose on Saturday night when one of the two ammonia-fed cooling loops shut down, triggering alarms throughout the ISS. The two ammonia lines ensure that all the station’s electronic …

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Asteroids Rock! – redux – Updated

[Updated with images from the fly past]  Japan’s Hayabusa probe looks like it might have successfully returned material from the asteroid Itokawa, if not as much as they had hoped.  Meanwhile Esa’s Rosetta probe, last seen [on Slugger] in 2008, is taking time out from its mission to the comet 67P/Churyumov-Gerasimenko to take a look at the asteroid Lutetia. Artist’s impression of Lutetia. Image credits: ESA – C. Carreau. At 4.44pm [BST] today Rosetta will fly past the 100km wide Lutetia …

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“it’s a thing of beauty”

Launched in May 2009 ESA’s super-cool Planck observatory achieved first light in September.  Now, as the BBC’s Jonathan Amos notes, ESA have released Planck’s first all-sky image. “This is the moment that Planck was conceived for,” says ESA Director of Science and Robotic Exploration, David Southwood. “We’re not giving the answer. We are opening the door to an Eldorado where scientists can seek the nuggets that will lead to deeper understanding of how our Universe came to be and how it …

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Herschel’s anniversary and Dawn’s destinations

As I mentioned when noting a previous wondrous image, ESA’s cool infrared Herschel observatory sent its first images back in October last year, just after its launch companion, the even cooler Planck observatory achieved first light. Both are twittering away – Planck and Herschel. And ESA have released another stunning image as Herschel nears its first anniversary in orbit. There’s also an ESA video to mark the anniversary The BBC’s Spaceman, Jonathan Amos, has been contemplating Herschel’s images.  He recommends the …

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