For decades, scientists have held that Supermassive Black Holes (SMBHs) reside at the center of larger galaxies. These reality-bending points in space exert a extremely powerful influence on all things that surround them, consuming matter and spitting out a tremendous amount of energy. But given their nature, all attempts to study them has been confined to indirect methods.
Since the 1960s, astronomers have been aware of the electromagnetic background radiation that pervades the Universe. Known as the Cosmic Microwave Background, this radiation is the oldest light in the Universe and what is left over from the Big Bang. By 2004, astronomers became aware that a large region within the CMB appeared to be colder than its surroundings.
The discovery of hydrogen in the water plumes suggests that although the moon is just 505 kilometers in diameter, it may harbor under its surface the chemicals and processes capable of supporting microbial life.
For years, scientists have been piecing together evidence of peculiar phenomena known as red sprites, blue jets, pixies and elves – exotic types of electrical discharges that emanate from thunderstorms.
In the past year, Sun Weidong, a highly decorated geochemist, has ignited a passionate online debate with claims that the founders of Chinese civilization were not in any sense Chinese but actually migrants from Egypt.
The most detailed 3D map yet of a billion stars in the Milky Way galaxy was released last week on September 14, along with a sneak peek at brand-new data on millions of stars collected by ESA's Gaia spacecraft.
If the idea really is true that aliens are deliberately preventing humans from contacting them, then extraterrestrial civilizations most likely formed a number of cliques rather than a pan-galactic government.