Bitcoin breaks over $50K again amid strong crypto rally, Cardano makes new all-time high

The largest cryptocurrency Bitcoin ((BTC-USD +4.6%)) finally surpasses $50K resistance, a key level tested on August 23 when it crossed that same point for the first time in three months. Blockchain crypto Cardano (ADA-USD) surges 8.1% to new all-time highs on Thursday, and Ether ((ETH-USD +6.6%)) grinded towards $3.9K before retreating to $3.8K, albeit still elevated as the reduction in ETH supply fuels the rally. "We're entering the second phase of this super bull cycle and I like it. Enjoy it," Cointelegraphs' Michael van de Poppe commented. The well-known "proxy" for bitcoin (BTC-USD), Grayscale Bitcoin Trust (OTC:GBTC), rises 4.3% in premarket trading, while Grayscale Ethereum Trust (OTCQX:ETHE) also gains 1.6% as ether already made 3-month highs. Bitcoin (BTC-USD) is just shy of making a 3-month high as well, but $51K remains the level to beat in order to cement a continuation of the 2021 Bitcoin bull run, Cointelegraph reports. Shares of the crypto miner Marathon (NASDAQ:MARA) climbs