Planets do not take much longer to form after stars have formed. For example, the Sun formed 4.6 billion years ago, and the Earth about 4.5 billion years ago. However, scientists now say it is not necessarily the only possibility. ...

A black hole’s structure is straightforward in the grand scheme of things. All you need to know is the black hole’s mass, electric charge, and spin to determine the structure of space and time surrounding it. However, things get complicated ...