Nach einem Versuch, bei der französischen Band Atoll einzusteigen, mit der er drei Nummern, darunter der spätere Asia-Titel Here Comes the Feeling, eingespielt hatte, ging John Wetton auf Anregung seines Managers Brian Lane mit Steve Howe ins Studio, um gemeinsam einige Lieder aufzunehmen. Als Schlagzeuger der neuen Band wurde Carl Palmer engagiert. Geoffrey Downes, der in Folge ein beständiger Autorpartner Wettons wurde, stieß als letzter zur Formation.

Asia's logo and cover artwork were created by Roger Dean, known for his work with Yes (of which guitarist Steve Howe and keyboard player Geoff Downes were previous members) and Uriah Heep (of which bassist/vocalist John Wetton had previously been a member). The debut album's art depicts a sea serpent gazing into a crystal orb.

Started in 1984, it marked the return of Wetton to the group after his firing in September 1983. He had been replaced by Emerson, Lake & Palmer co-founder Greg Lake, temporarily, for the concerts at the Nippon Budokan in Tokyo in December 1983. The opening night of these shows, highly advertised as Asia in Asia, was the first in the history of MTV to be broadcast via satellite transmission. Following a two-month stint, Lake had left Asia and soon Wetton had been convinced to come back. The latter agreed, but made it a condition to his return that Howe depart the line-up. By the time sessions for Astra began, the group had recruited Meyer, a former guitarist of the Swiss hard rock band Krokus.

Asia are an English rock supergroup formed in London in 1981. The most commercially successful lineup was its original, which consisted of four members of different progressive rock bands who had enjoyed great success in the 1970s: lead vocalist and bassist John Wetton (King Crimson, Uriah Heep and U.K.), guitarist Steve Howe (Yes), keyboardist Geoff Downes (Yes and the Buggles) and drummer Carl Palmer (Emerson, Lake & Palmer; itself a supergroup).