No news from US means that the entire market concentrates its attention on the USDX (as far as I've seen - GBP/USD USD/CAD USD/JPY EUR/USD NZD/USD).
Anyway going up without fundamentals, only pumped by a big fund and "follow the leader...trend traders" means it will crash soon. There's no way this thing will pass 0.9980 without some alien help for Australia... or probably it's going to be a drought tomorrow.