Conflicting results in measurements of the global spectrum of the hydrogen 21-cm line may indicate that there are large systematic errors. A different experimental approach to reach the redshifted signal from cosmic dawn assesses possible systematic errors together with the signal.

中文翻译：

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从小天线到宇宙黎明

氢 21 厘米线的全局光谱测量结果相互矛盾可能表明存在较大的系统误差。从宇宙黎明到达红移信号的另一种实验方法与信号一起评估可能的系统误差。