ARTICLES

There is no definitive answer as to whether other universes exist, although many astronomers believe it is highly likely and have several theories on how or where they exist. Some people theorize that an infinite number ...

www.reference.com/article/other-universes-out-9a1c4e6aea6e2cd7

According to NASA, more than 1,700 planets have been confirmed outside of our own solar system. However, the number of planets in the universe could essentially be infinite because scientists have yet to find the so call...

www.reference.com/science/many-planets-universe-d583da9627ba2e8e

The exact number of stars in the universe is not known, and the total figure might be unknowable from the Earth's position in space. The universe almost certainly contains no fewer than 10^24, or 1 septillion, stars, and...

www.reference.com/article/many-stars-universe-c044adfa226a4d89

SIMILAR ARTICLES

The belief of early astronomers that the Earth was the center of the universe stemmed from limited astronomical tools and geocentric attitudes. The Ptolemaic Model, developed around 100 A.D., presented the Earth-centered...

www.reference.com/science/did-people-once-believe-earth-center-universe-ea97f10a613be71a

Scientists estimate that they have mapped 0.42 percent of the observable night time sky as of 2015, but they have no way of determining what percentage of the entire universe the observable portion comprises. They hope t...

www.reference.com/article/percentage-universe-scientists-able-map-fe3849f91a987c07

The Milky Way's name stems from the Greeks, who referred to the galaxy as galaxias kyklos, or milky circle. The Romans, who called it via lactea, or "the road of milk," altered the term from its original Greek origins.

www.reference.com/article/did-milky-way-its-name-59302ec2c18464f3

Whether humans are the only intelligent life to have evolved in the universe cannot be answered with certainty, but a probability can be assigned to the proposition. Accurately estimating the number of advanced civilizat...

www.reference.com/article/humans-alone-universe-83e7d69a01801220