General astronomy

General astronomy

Contributors in General astronomy

General astronomy

The lowest possible temperature, attained when a system is at its minimum possible energy. The Kelvin temperature scale sets its zero point at absolute zero (-273.15 degree on the Celsius scale, and ...

Apollo space program

Astronomy; General astronomy

Successful US lunar exploration program in which the Apollo spacecraft 1 to 6 were unmanned; 7 to 10 were manned but did not land; and 11, 12 and 14 to 17 landed and returned safely. (Apollo 13 was ...

Arcturus

Astronomy; General astronomy

An old subgiant disk star (K2 IIIp, mv = 0.06) about 11 pc distant.

Ariel

Astronomy; General astronomy

Second satellite of Uranus.

Aristotelian physics

Astronomy; General astronomy

Physics as promulgated by Aristotle; includes the hypothesis that our world is comprised of four elements, and that the universe beyond the moon is made of a fifth element and so is fundamentally ...

Astronomical Image Processing System (AIPS)

Astronomy; General astronomy

Developed by the National Radio Astronomy Observatory.

Astrophysical Data Facility (ADF)

Astronomy; General astronomy

Is responsible for designing, developing, and operating data systems that support the processing, management, archiving and distribution of NASA mission data. The ADF serves three broadly-defined ...