American Society for Therapeutic Radiation and Oncology

American Society for Therapeutic Radiology and Oncology.

Astro is a subscription-based direct broadcast satellite (DBS) or direct-to-home satellite television and radio service in Malaysia, Brunei and Indonesia. The service is broadcast from the All Asia Broadcast Centre (ABC) located in Bukit Jalil, Kuala Lumpur, Malaysia. Astro is owned by MEASAT Broadcast Network Systems, a subsidiary of Astro All Asia Networks plc.

Astro (Japanese; アストロ) is the solo project of Japanese musician Hiroshi Hasegawa of the influential noise music group C.C.C.C. Astro's music is made using a Moog synthesizer and covers a wide range of styles in the experimental psychedelic music field, from space music to psychedelically tinged harsh noise.

Astro the dog is a canine character on the Hanna-Barbera cartoon, The Jetsons.

Astronomy Observatory

defensive bidding method over opponents' notrump openings that emphasizes showing two-suiters (two diamonds = spades and another suit; two clubs = hearts and a minor suit).

Integrated Runway to Ropes bridge, Memory controller, and IOA.

from the Greek aster (star, heavens, outer space).