Astronomical dates refer to days on which a celestial event occurs, such as a meteor shower or full moon. Astrological signs, on the other hand, indicate the position of the sun on one's birthday.
An astronomical unit, or AU, and a light-year are two separate measurements that are used for different distances in space. According to the University of Nebraska, an AU is the smallest distance used to measure distances in space, and the light year is the standard measurement for interstellar dist
Astronomers use light years to measure distances in space because space is so massive and distances so far that conventional numbering is inadequate and unmanageable. One light year is a distance measurement equivalent to six trillion miles.
The astronomical telescope is a central apparatus used to study distant planets, stars and moons from the Earth. Astronomer Galileo Galilei famously used the earliest telescopes in 1610 to prove the heliocentric solar system theory put forth by Nicolaus Copernicus in the early 16th century.
To predict planetary alignment, astronomers use the angular speeds of travel around the sun of different planets. Alignment occurs when any of the planets is in a direct line with the Earth and the Sun.
Astronomers suspected another planet beyond Uranus when it was noted that Uranus was being slightly pulled out of orbit at points. This led to speculation that gravity from another planet was causing the pull.
New research indicates there may be an undiscovered planet lurking in our solar system, in addition to the one we're already searching for. Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. How we test gear. New research indicates there may be an un
The proposed gravitational lensing technique could produce high-quality images of exoplanets from hundreds of light-years away. Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. How we test gear. The proposed gravitational lensing technique could pr
Get tired in the middle of the day? You might not need a proper sleep, but rather just a quick nap to get back in gear - because we can't be productive Craig is an editor and web developer who writes about happiness and motivation at Lifehack Read full profile Get tired in the middle of the day? You
Potentially trillions have been spotted. Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. How we test gear. Potentially trillions have been spotted. Astronomers have found so many planets around other stars that at this point, the discovery of new