SYDNEY (Reuters) - Bitcoin broke above $20,000 on Tuesday for the first time in about a week, as cryptocurrencies bounced, along with other risk-sensitive assets, in Asian trade.The biggest cryptocurrency by market value, bitcoin, was up more than 5% at $20,286. The second-biggest, ether, rose 4% to a one-week high of $1,389.In the broader market the dollar eased slightly after soaring to fresh heights on Monday.investing.com