Because of the very definition of black holes — no light escapes them and falling objects get infinitely faint when approaching — it is impossible to ever prove that they exist. However, electromagnetic and gravitational-wave observatories have now ‘seen’ black holes. Datasets from these observations, released in late 2018 and 2019, give important hints about the environment, origin and growth of black holes. Black holes — from which no light escapes — have now been ‘seen’ by electromagnetic and gravitational-wave observatories. Datasets from these observations, released in the past year, give important hints about the environment, origin and growth of black holes.

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由于黑洞的定义非常明确-黑光无法逃逸，落下的物体在接近时会变得无限微弱-不可能证明它们的存在。但是，电磁和重力波天文台现在已经“看到”了黑洞。这些观察结果的数据集于2018年末和2019年发布，为黑洞的环境，起源和增长提供了重要提示。现在，电磁波和引力波天文台已经“看到”了黑洞，没有光从黑洞中逸出。去年发布的这些观测数据集提供了有关环境，黑洞起源和增长的重要提示。