Image of the day
Dolphin Head Nebula Sh2-308
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Wayward planet knocks extrasolar planets for a loop
The peculiar orbits of three planets looping around a faraway star can be explained only if an unseen fourth planet blundered through and knocked them out of their circular orbits, according to a new study by researchers at the University of California, Berkeley, and Northwestern University. (sorry - body text too long for international translations - Ed.)
NRAO Radio Image Of The Day
Celestron's 80mm ED gets the once over by this week's review winner..
Scientists model physics of stellar burning
LOS ALAMOS, N.M., April 14, 2005 -- A University of California scientist at Los Alamos National Laboratory working with astronomers from around the world recently validated a computer model that predicts the rebirth and stellar burning and mixing processes of evolved stars. <b>NOTE: French, German, Italian, and Spanish translations follow...</b>
Astronomers discover mysterious new star clusters
A UK-led team of astronomers has discovered a completely new type of star cluster around a neighboring galaxy. The new-found clusters contain hundreds of thousands of stars, a similar number to the so-called globular star clusters which have long been familiar to astronomers. <b>NOTE: French, German, Italian, and Spanish translations follow...</b>
Scientists Track Collision of Powerful Stellar Winds.
Does this 4" Achromat make the grade?
Study Shows Early Earth Atmosphere Hydrogen-Rich, Favorable To Life.
A new University of Colorado at Boulder study indicates Earth in its infancy probably had substantial quantities of hydrogen in its atmosphere, a surprising finding that may alter the way many scientists think about how life began on the planet. <b>NOTE: French, German, Italian, and Spanish translations follow...</b>
Explosions in Space May Have Initiated Ancient Extinction on Earth.
Scientists at NASA and the University of Kansas say that a mass extinction on Earth hundreds of millions of years ago could have been triggered by a star explosion called a gamma-ray burst. The scientists do not have direct evidence that such a burst activated the ancient extinction. The strength of their work is their atmospheric modeling -- essentially a "what if" scenario. <b>NOTE: French, German, Italian, and Spanish translations follow...</b>
Old Star's "Rebirth" Gives Astronomers Surprises.
Astronomers using the National Science Foundation's Very Large Array (VLA) radio telescope are taking advantage of a once-in-a-lifetime opportunity to watch an old star suddenly stir back into new activity after coming to the end of its normal life. Their surprising results have forced them to change their ideas of how such an old, white dwarf star can re-ignite its nuclear furnace for one final blast of energy. <b>NOTE: French, German, Italian, and Spanish translations follow...</b>
Era of Galaxy and Black Hole Growth Spurt Discovered
Distant galaxies undergoing intense bursts of star formation have been shown by NASA's Chandra X-ray Observatory to be fertile growing grounds for the largest black holes in the Universe. Collisions between galaxies in the early Universe may be the ultimate cause for both the accelerated star formation and black hole growth. <b>NOTE: French, German, Italian, and Spanish translations follow...</b>
A C-Mak gets the once over in this week's winner...
This is a follow-up to the Deep Impact Status report posted here last week on March 26.
NASA Announces First Centennial Challenges' Prizes.
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