One of my favorite
blogs happens to be local to me. Eric Berger, the Houston Chronicle's "SciGuy" usually reports on the
weather. But he also posts entertaining and serious stuff as well.
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posted by PapaLobo
on Nov 22, 2011 -
3 comments
Where's Tyche, the 10th 9th planet? Getting the full story. John Matese and Daniel Whitmire of the University of Louisiana at Lafayette recently made the news when they announced the possible discovery of a gas giant planet they named
Tyche in the Oort Cloud, at the extreme edge of the Solar System (
previously). Now ars electronica breaks down the evidence behind the announcement, what can be done to confirm or disprove its existence & how long it could take.
posted by scalefree
on Mar 3, 2011 -
17 comments
On July 17th, NASA's
Wide-field Infrared Survey Explorer (WISE) satellite
completed its first survey of the entire sky viewable from Earth. After just seven months in orbit, WISE -- a precursor to the planned
James Webb Space Telescope -- has returned more than a million images that provide a close look at
celestial objects ranging from
distant galaxies to
asteroids. The first release of WISE data, covering about 80 percent of the sky,
will be delivered to the astronomical community in May of next year, but in the meantime we can see some of the images and animations that NASA has released to date: Galleries
(containing just a small selection of images):
1,
2,
3,
4. Videos and Animations:
1,
2 [more inside]
posted by zarq
on Jul 24, 2010 -
11 comments
The Carnegie Institution for Science reports "a much higher water content in the Moon’s interior than previous studies." For decades, the moon's water content was estimated at less than 1 part per billion; the new estimates range from 64 ppb to 5 parts per million. A scientist at Washington University said, "We can now finally begin to consider the implications—and the origin—of water in the interior of the Moon.”
There's more at
NASA and the
BBC, and the full paper is available at
PNAS (PDF).
posted by Stan Carey
on Jun 15, 2010 -
21 comments
People have been
upset about Pluto's demotion for some time now. (While
classical music fans have just had a love/hate relationship with this whole process.) But
astronomical hate mail has never been as cute as the missives Neil deGrasse Tyson has received over the years from tots upset at poor Pluto's ouster.
posted by greekphilosophy
on Mar 15, 2010 -
46 comments
Tonight NASA is scheduled to launch the
Kepler Mission (named after planetary legislator
Johannes Kepler) with the goal of finding Earth size planets in orbit around stars in the
Cygnus-Lyra region of the sky. Over the next 3 and a half years it will maintain a nearly unblinking gaze on the approximately 100 thousand stars in the region. NASA expects it to find about
50 Earth size planets, as well as hundreds that are larger. You can watch the launch live on
NASA TV.
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posted by borkencode
on Mar 6, 2009 -
42 comments
Once every 27 years or so, the mysterious binary star system of
Epsilon Aurigae undergoes an eclipse, lasting nearly two years. This gives this system the distinction of having both the longest eclipse and the longest period of any known binary system. However, it is not clear why the eclipses last so long, or even what the structure of the system actually looks like--
the main star is a supergiant, with a radius as big as the distance from the earth to the sun, and yet its light is dimmed for two years by something yet bigger. The next eclipse is due to begin in August of 2009, and as part of the
International Year of Astronomy in 2009, amateur astronomers are being called on to make their own observations of the changing brightness of Epsilon Aurigae. If you want to try it yourself, you can read the
training guide to find out how to do your own observations and report them. In addition, the two scientists who organized observations of the previous eclipse both have webpages [
1,
2] which are coordinating the organization for the upcoming observation. If you want to learn more about the science behind ε Aurigae, a good rundown with links to papers is available
here.
posted by Upton O'Good
on Jan 8, 2009 -
32 comments
