... path brings it closer and closer to the Sun, the heat begins to evaporate the ices ... and dust particles form a cloud or "halo'' around the iceberg which astronomers call ...
... About 150 globular clusters are members of our Milky Way galaxy, distributed in a round halo around the Galaxy's disk. ... clusters, which can also be detected in other galaxies, are made up of very old stars (twice the age of the Sun or more ...
... changing direction to intercept the Sun's closest stellar neighbors, the triple-star ... The Sun will produce a planetary nebula as it dies in about six billion years. ...
... Our own Sun provides an immediate example of this ever-present competition (see "Of ... of a massive star, with more than ten times the mass of the Sun, is a rare event ...
... Jack Zirker takes us on an imaginary voyage from the center of the sun to its surface, showing how sunlight is made and finally following the sun's energy to the far reaches of the solar system. ...
... Vol. CS-109 . COOL STARS, STELLAR SYSTEMS, AND THE SUN: Ninth Cambridge Workshop . ... RADIO EMISSION FROM THE STARS AND THE SUN . ed. A. R. Taylor and J. M. Paredes . ... Vol. CS-92 . FORMATION OF THE GALACTIC HALO .... INSIDE AND OUT . ...
... In Cosmic Butterflies , Sun Kwok captures the incredible beauty of this phase and details the discovery process of the creation of planetary nebulae and of the future of the Earth's sun. ...
... globular clusters, which reside in the halo and are concentrated toward the Galaxy's ... Their stars are less abundant than the Sun in elements heavier than hydrogen and ...