The Milky Way galaxy is easily the most important galaxy in the universe.

Oct 3, 2011 - Daniel Morales

Dark matter makes up the majority of the Milky Way Galaxy and the Universe. But where is this unseen presence?

Jan 11, 2010 - Kelly Whitt

Vesto M. Slipher was the first astronomer to measure the spectrum of an external galaxy. His work led to Hubble's discovery that the universe is expanding.

Jul 30, 2007 - Paul A. Heckert

The Planet Earth on which we live is in a solar system that revolves around the Sun. Beyond is a fascinating place, a galaxy we call The Milky Way.

Mar 29, 2011 - Patrick Hamlin

The immense Virgo Supercluster of galaxies has a gravitational pull on the Local Group of galaxies that surround our Milky Way Galaxy.

Jul 30, 2011 - Michael Manning

Andromeda was tied to a rock and sacrificed to Cetus, the sea monster, when Perseus on Pegasus turned it to stone with the head of Medusa, saving Argos.

Oct 8, 2011 - Michael Manning

As with all life in the Cosmos, the ending depends largely on the life that was led.

Jul 30, 2007 - Frank W. Hardy

The irregular dwarf galaxy NGC 6822, better known as Barnard's Galaxy, lies nearby in the constellation Sagittarius.

Oct 19, 2009 - Kelly Whitt

Though it's a hefty two billion years away, the future event that has astronomers buzzing is the expected galactic merger of the Milky Way and the spiral Andromeda Galaxy

May 28, 2008 - Stephanie Cox

The NGC 2207 Galaxy is distorted by a smaller nearby galaxy, IC 2163, resulting in gas and stars flung into space, yet, galaxy collisions are quite common.

Mar 6, 2012 - Michael Manning

Like the footsteps in the snow of an invisible man, feeding black holes are easily seen

Jul 30, 2007 - Frank W. Hardy

10,000 light years away, the yellow hypergiant star, Rho Cassiopeiae ("Rho Cas" a type F8-G2 Ia0 star,) has a fantastic chance of already having blown itself apart.

Jul 31, 2007 - Frank W. Hardy

Galaxies like our Milky Way are large groups of stars containing from a few million to about a trillion stars. Galaxies also group together in clusters of galaxies.

Jul 11, 2007 - Paul A. Heckert

Owners of small telescopes often wonder what else they can view besides the Moon and planets. There is a lot to see up in the dark sky, if one knows where to look.

Aug 4, 2009 - Anna Sanclement

What will happen to Earth in the future? Where will our solar system end up and what will the sky look like for any observers still around?

May 16, 2007 - Kelly Whitt

November is a great time to preview what's coming into view these next few months. The Hyades, The Pleiades, Orion and Andromeda will all dazzle this winter.

Oct 27, 2009 - Anna Sanclement

The constellation of Cepheus the King is north circumpolar and never sets for observers in the Northern Hemisphere.

Jan 6, 2008 - Kelly Whitt

Biography of Edwin Hubble, who discovered galaxies and that the universe expands; also known for Hubble's Law.

Apr 3, 2008 - Tel Asiado

Journey outward from Earth to find how far away celestial objects are in our solar system and in deep space.

Sep 29, 2010 - Kelly Whitt

Newton's First Law, the simplest of Newton's three laws of motion, provides a frame of reference for understanding all motion in the Universe.

Apr 21, 2006 - Katharine M. J. Osborne