Over the last twenty years, astronomers have found that almost all galaxies have a huge black hole at their centre. Some of these black holes are growing by drawing in matter from their surroundings, creating in the process the most energetic objects in the Universe: active galactic nuclei (AGN).
WASHINGTON — A flash of light from a stellar outburst has provided a rare look at the 3-D structure of material ejected by an erupting nova.
A small asteroid flew safely past the earth ar 8:42 pm on Friday night. It shot over at about 65,000 miles above the earth' surface.
The shores of the Sea of Galilee, located in the North of Israel, are home to a number of significant archaeological sites. Now researchers from Tel Aviv University have found an ancient structure deep beneath the waves as well.