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Your online destination for news articles on planets, cosmology, NASA, space missions, and more. You’ll also find information on how to observe upcoming visible sky events such as meteor showers, solar and lunar eclipses, key planetary appearances, comets, and asteroids.
 | The globular clusters in galaxy NGC 5128 include the most massive ones known. Astronomers are hoping they can illuminate the galaxy's history. By Robert Burnham
Published: July 29, 2004 |
 | Two 35-million-year-old impact craters hint at the possibility of asteroid showers. By Robert Burnham
Published: July 29, 2004 |
 | A meteorite found in Oman in 2002 can be traced back to the Imbrium basin and the crater Lalande on the lunar nearside. The meteorite's history may compel scientists to revise the Moon's early chronology. By Robert Burnham
Published: July 29, 2004 |
 | Volcano seasons, Chicxulub impact winter, black hole filling, and more
Published: July 29, 2004 |
 | Gurgling plasma on the Sun produces periodic, supercharged jets. By Laura Baird
Published: July 28, 2004 |
 | Dark energy may arise from the interaction of neutrinos and a hypothetical particle. By Francis Reddy
Published: July 27, 2004 |
 | Hubble image shows an assortment of galaxies — and an optical illusion. By Jeremy McGovern
Published: July 23, 2004 |
 | Cassini shoots a color image of the rings. By Pamela Zerbinos
Published: July 22, 2004 |
 | Why does the Large Magellanic Cloud have two populations of globular star clusters separated in age by 10 billion years? New theoretical work suggests an answer. By Robert Burnham
Published: July 19, 2004 |
 | Astronomers find a pair of runaway pulsars that once formed a binary star system. By Robert Burnham
Published: July 19, 2004 |
 | The largest organization of professional planetary scientists in the world names winners of annual awards. By Jeremy McGovern
Published: July 16, 2004 |
 | Cassini sees Saturn's rings in a different light. By Francis Reddy
Published: July 8, 2004 |
 | Canada's space telescope spies on stars as they spin and shake. By Andrew Fazekas
Published: July 7, 2004 |
 | A European Southern Observatory image showcases one of the nearest regions of star formation. By Jeremy McGovern
Published: July 7, 2004 |
 | Cassini's distant flyby of Titan reveals a landscape like no other. By Francis Reddy
Published: July 5, 2004 |
 | Cassini-Huygens made a picture-perfect arrival at the ringed planet. By Robert Burnham
Published: July 1, 2004 |
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