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TABLE OF CONTENTS
ScientificAmerican.com
exclusive online issue no. 24
2 Is the Universe Out of Tune?
BY GLENN D. STARKMAN AND DOMINIK J. SCHWARZ, SCIENTIFIC AMERICAN; AUGUST 2005
Like the discord of key instruments in a skillful orchestra quietly playing the wrong piece, mysterious discrepancies have arisen
between theory and observations of the “music” of the cosmic microwave background. Either the measurements are wrong or
the universe is stranger than we thought
10 The Midlife Crisis of the Cosmos
BY AMY J. BARGER, SCIENTIFIC AMERICAN; JANUARY 2005
Although it is not as active as it used to be, the universe is still forming stars and building black holes at an impressive pace
18 Magnetars
BY CHRYSSA KOUVELIOTOU, ROBERT C. DUNCAN AND CHRISTOPHER THOMPSON, SCIENTIFIC AMERICAN; FEBRUARY 2003
Some stars are magnetized so intensely that they emit huge bursts of magnetic energy and alter the very nature of the quantum vacuum
26 Parallel Universes
BY MAX TEGMARK, SCIENTIFIC AMERICAN; MAY 2003
Not just a staple of science fiction, other universes are a direct implication of cosmological observations
38 Information in the Holographic Universe
BY JACOB D. BEKENSTEIN, SCIENTIFIC AMERICAN; AUGUST 2003
Theoretical results about black holes suggest that the universe could be like a gigantic hologram
46 The Gas between the Stars
BY RONALD J. REYNOLDS, SCIENTIFIC AMERICAN; JANUARY 2002
Filled with colossal fountains of hot gas and vast bubbles blown by exploding stars, the interstellar medium is far more
interesting than scientists once thought
56 The Brightest Explosions in the Universe
BY NEIL GEHRELS, LUIGI PIRO AND PETER J.T. LEONARD, SCIENTIFIC AMERICAN; DECEMBER 2002
Every time a gamma-ray burst goes off, a black hole is born
ScientificAmerican.com
exclusive online issue no. 24
2 Is the Universe Out of Tune?
BY GLENN D. STARKMAN AND DOMINIK J. SCHWARZ, SCIENTIFIC AMERICAN; AUGUST 2005
Like the discord of key instruments in a skillful orchestra quietly playing the wrong piece, mysterious discrepancies have arisen
between theory and observations of the “music” of the cosmic microwave background. Either the measurements are wrong or
the universe is stranger than we thought
10 The Midlife Crisis of the Cosmos
BY AMY J. BARGER, SCIENTIFIC AMERICAN; JANUARY 2005
Although it is not as active as it used to be, the universe is still forming stars and building black holes at an impressive pace
18 Magnetars
BY CHRYSSA KOUVELIOTOU, ROBERT C. DUNCAN AND CHRISTOPHER THOMPSON, SCIENTIFIC AMERICAN; FEBRUARY 2003
Some stars are magnetized so intensely that they emit huge bursts of magnetic energy and alter the very nature of the quantum vacuum
26 Parallel Universes
BY MAX TEGMARK, SCIENTIFIC AMERICAN; MAY 2003
Not just a staple of science fiction, other universes are a direct implication of cosmological observations
38 Information in the Holographic Universe
BY JACOB D. BEKENSTEIN, SCIENTIFIC AMERICAN; AUGUST 2003
Theoretical results about black holes suggest that the universe could be like a gigantic hologram
46 The Gas between the Stars
BY RONALD J. REYNOLDS, SCIENTIFIC AMERICAN; JANUARY 2002
Filled with colossal fountains of hot gas and vast bubbles blown by exploding stars, the interstellar medium is far more
interesting than scientists once thought
56 The Brightest Explosions in the Universe
BY NEIL GEHRELS, LUIGI PIRO AND PETER J.T. LEONARD, SCIENTIFIC AMERICAN; DECEMBER 2002
Every time a gamma-ray burst goes off, a black hole is born