Space
Nine probes reached the outer solar system: Where are they now?
Besides Cassini, eight missions have passed the asteroid belt – and several are still broadcasting from the furthest solar system and beyond
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Besides Cassini, eight missions have passed the asteroid belt – and several are still broadcasting from the furthest solar system and beyond
Data from the Kepler space telescope show that exoplanets tend to be similar in size to their neighbours and regularly spaced, no matter the size of their star