Astronomers have made a 42-day movie showing unprecedented detail of the inner workings of a strange star system that has puzzled scientists for more than two decades. Their work is providing new insights that are changing scientists’ understanding of the enigmatic stellar pairs known as microquasars.

Astronomers have discovered a key signpost of rapid star formation in a galaxy 11 billion light-years from Earth, seen as it was when the Universe was only 20 percent of its current age.

A Fourth of July fireworks display features bright explosions that light the sky with different colors, yet all have the same cause.

Scientists and dignitaries from North America, Europe, and Chile broke ground today (Thursday, November 6, 2003) on what will be the world’s largest, most sensitive radio telescope operating at millimeter wavelengths.

Location, location, and location: the old real-estate adage about what’s really important proved applicable to astrophysics as astronomers used the sharp radio vision of the National Science Foundation’s Very Long Baseline Array to pinpoint the distance to a pulsar.

Astronomers studying the most distant quasar yet found in the Universe have discovered a massive reservoir of gas containing atoms made in the cores of some of the first stars ever formed.