Astronmy Glossary

Aberration
An effect caused by the Earth's motion which slightly changes the positions of stars. Aberration of starlight was discovered by James Bradley in 1728. This was the first direct proof of the Earth's movement around the Sun. (more...)

The Moon

The Moon has fascinated mankind throughout the ages. By simply viewing with the naked eye, one can discern two major types of terrain: relatively bright highlands and darker plains. By the middle of the 17th century, (more...)

Guiding a Telescope

-By Mark J. CocoWe all do it — ogle over the astrophotographs taken by the masters. The deep-sky images look so exquisite with their masses of detail and perfectly round, pinpoint stars. We know they didn’t come easily.

The Essential Magazine of Astronomy

SINCE 1941 Sky & Telescope has been the world’s leading source of accurate and up-to-date information about astronomy and space science. Sky & Telescope appeals to the full spectrum of astronomy enthusiasts,

In video: Kepler analyzes the atmosphere of an exoplanet

The telescope’s space NASA has just offered a dip in the atmosphere of an exoplanet already known. The first test, a simple appetizer before the start of scientific work has demonstrated the exceptional performance of instruments and their ability to detect exoterres. Launched in March 2009, the hunter exoplanets Kepler, NASA has installed at his [...]

Comet Wild 2 contained a brick of life, glycine

After analysis of the patients in regard to the collectors of the Stardust mission, due to his overview of the comet Wild 2, a group of scientists from NASA claims to have discovered glycine, an amino acid essential for terrestrial life forms.  Remember, in January 2004 the Stardust mission flew the comet [...]