Latest Aleksander Wolszczan Stories
An international team of astronomers has caught a star in the act of devouring one of its planets.
Astronomers say they've witnessed the death of a planet, which found its journey ended by way of its own star.
Three planets -- each orbiting its own giant, dying star -- have been discovered by an international research team led by a Penn State University astronomer.
Two brown dwarf-sized objects orbiting a giant old star show that planets may assemble around stars more quickly and efficiently than anyone thought possible, according to an international team of astronomers.
A new planet closely orbiting a red giant star was found by a team of astronomers from Penn State University and Nicolaus Copernicus University. The research sheds light on ways in which aging stars can influence nearby planets, Penn State said in a news release. The discovered planet has a mass about six times that of Jupiter, the largest planet in the solar system that includes Earth, said Alexander Wolszczan from Penn State and Andrzej Niedzielski of Nicolaus Copernicus University.
A team of astronomers from Penn State and Nicolaus Copernicus University in Poland has discovered a new planet that is closely orbiting a red-giant star, HD 102272, which is much older than our own Sun.
Astronomers have uncovered new evidence that planets might rise up out of a dead star's ashes. Spitzer surveyed the scene around a pulsar and found a surrounding disk made up of debris shot out during the star's death throes.
Extrasolar Planet -- An extrasolar planet is a planet orbiting around a star other than the Sun. Extrasolar planets were first discovered in the 1990s as a result of improved telescope technology, CCD and computer-based image processing which allowed far more accurate measurements of stellar motions. The first extrasolar planets were reported by the astronomer Aleksander Wolszczan in 1993, orbiting the pulsar PSR 1257+12. Subsequent investigation has determined that they are only planets...
- Large; stout; burly.