To us, the universe looks three dimensional. But one of the theories of theoretical physics challenges this assumption.
Scientists may have solved a long-standing puzzle regarding the nature of disk galaxies.
Scientists have discovered that "comatose" galaxies can be resurrected. If clusters of galaxies merge, a cosmic tsunami can drive the birth of a new generation of stars.
Astronomers have spotted 11 runaway galaxies that have been flung from their original homes to wander through space.
Happy birthday, Hubble! Twenty-five years ago, the NASA/ESA Hubble Space Telescope was launched into orbit aboard the space shuttle Discovery as the first ever space telescope of its kind.
Scientists have taken a closer look at the monstrous stars that formed in our early universe.
Saturn's moon, Titan, is the only moon in the solar system that has an atmosphere as thick of the Earth's. Now, scientists have discovered that Titan's atmosphere may fluctuate according to the sun's 11-year solar cycle.
The hunt for alien life continues, but one planet may not be as hospitable to life as scientists once believed. Researchers have examined our cosmic neighbor, Tau Ceti, and have found that the system is unlikely to host life.
Scientists may have found out not only how asteroids formed, but also how our planet was created.
How is lightning created? That's a difficult question and now, scientists have used studies on exploding stars to help unlock the answer.
Astronomers have spotted the first ever exoplanet in the visible light spectrum. The exoplanet, called 51 Pegasi b, is located just 50 light-years from Earth in the constellation of Pegasus.
Make sure to look to the skies this week. The Lyrid meteor shower is set to put on quite the show. The annual meteor shower is active each year from about April 16 and April 25, but you'll be able to catch the peak of this sky show tomorrow before dawn.