It’s a gas when galaxies merge —a lot of gas
Source: Stanford Posted: 6/15/07 Using supercomputers to simulate galaxy mergers, scientists have seen the formation of a new type of structure—a central disk of gas that can be from a hundred to a few thousand light years wide and from a few hundred million to a billion solar masses.
NASA Scientist Finds a New Way to the Center of the Earth
Source: NASA/JPL Posted: 6/15/07 Humans have yet to see Earth's center, as did the characters in Jules Verne's science fiction classic, 'Journey to the Center of the Earth.' But a new NASA study proposes a novel technique to pinpoint more precisely the location of Earth's center of mass and how it moves through space.
From Science Fiction to Reality: Personal Robots
Source: Gatech Posted: 6/15/07 It's 6 a.m., and the Clarks awake to fresh coffee served to them by Millie, one of the family's personal robots. As they get ready for work, Millie makes the bed, and their robotic dog Mickey gently reminds Mr. Clark to take his medicine.
Strong evidence that Mars once had an ocean
Source: Berkeley Posted: 6/15/07 A paper in this week's issue of Nature demolishes one of the key arguments against the past presence of large oceans on Mars. Was Mars once a blue planet?
Sun's Deep Interior Revealed by New Computer Model
Source: UCAR Posted: 6/6/07 A new computer model simulates convection patterns in the deep interior of the Sun in unprecedented detail. The patterns, known as giant cells, play a critical role in solar variability, influencing magnetic storms that take aim at Earth.
Magnetic Field Uses Sound Waves to Ignite Sun's Ring of Fire
Source: NSF Posted: 6/6/07 Sound waves escaping the sun's interior create fountains of hot gas that shape and power a thin region of the sun's atmosphere which appears as a ruby red 'ring of fire' around the moon during a total solar eclipse, according to research funded by the National Science Foundation NSF and NASA.
Gazing up at the Man in the Star?
Source: NSF Posted: 6/6/07 Using a suite of four telescopes, astronomers have captured an image of Altair, one of the closest stars to our own and a fixture in the summer sky.
'There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there. All great discoveries have involved such a leap. The important thing is not to stop questioning.'