NGC 7635, also called the Bubble Nebula, is an emission nebula lit from within by the hot, young star SAO 20575.

Researchers have mathematically elucidated how the presence of crystals and gas bubbles in magma affects the propagation of seismic P-waves. A novel equation was derived to describe the travel of ...

All surfaces of this little prism can be refracted, and it presents different at different angles in the same or different light environment ... understand the light refraction, increase interest ...

The speed of light is the fastest anything can travel. What happens to a photon from a galaxy 25 million light years away on ...

On this second Sunday of Easter, the light of the Risen Lord shines for us. Pope John Paul II added the theme of mercy to this Easter reality by making this Sunday that of Divine Mercy.

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