Space

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Cassini’s one-way mission into Saturn

This week Cassini’s two-decade-long mission comes to a spectacular close. But before the craft ends its trip with a fatal plunge into Saturn, let's look at some of the incredible discoveries it has made.

Where are all the active spacecraft in our Solar System?

Since Sputnik 1 was launched in 1957, humans have sent thousands of spacecraft into the cosmos. There are currently around 50 active craft in our Solar System (not including miniaturised, amateur or commercial craft). Here’s where they are and what research they are doing.