Who the hell made it and sent it was unknown until now.
Her talent for painting was as yet unknown until she unveiled her stunning artwork.
Su talento para la pintura era desconocido hasta que reveló su impresionante obra de arte.
The cause of his unconsciousness remained unknown until further tests were conducted.
La causa de su inconsciencia permaneció desconocida hasta que se realizaron más pruebas.
His current whereabouts were unknown until this morning.
Su paradero actual era desconocido hasta hoy en la mañana.
The true origin of law is unknown until now.
El verdadero origen de la ley es desconocido hasta ahora.
All of this was unknown until my investigation began.
Todo esto era desconocido hasta que mi investigación comenzó.
This cenote was virtually unknown until very recently.
Este cenote era virtualmente desconocido hasta hace poco.
Our location will be unknown until we touch down.
Nuestra ubicación será desconocida hasta que lleguemos allá.
Its fate would be unknown until much later.
Su destino sería entonces desconocido hasta mucho más tarde.
Alvarez was quickly detained and his whereabouts were unknown until a few moments ago.
Alvarez fue rápidamente detenido y su paradero era desconocido hasta hace unos momentos.
The essence of the emission phenomenon however, has remained unknown until today.
La esencia del fenómeno de las emisiones, sin embargo, ha permanecido desconocida hasta hoy.
An unprecedented revolution meant that problems unknown until then had to be faced.
Una revolución sin precedentes, provocó tener que enfrentarse a problemas desconocidos hasta el momento.
This mechanism, unknown until now, may provide the key to understanding other neurodegenerative pathologies.
Este mecanismo desconocido hasta ahora podría ser clave para entender otras patologías neurodegenerativas.