NASA's Juno provides high-definition views of Europa's icy shell

Images from the JunoCam visible-light camera aboard NASA's Juno spacecraft supports the theory that the icy crust at the north and south poles of Jupiter's moon Europa is not where it used to be. Another high-resolution picture ...

Exploring the asteroid Apophis with small satellites

The author of a disaster novel couldn't have dreamed it up any better: On a Friday, the thirteenth of all days, the potentially dangerous asteroid (99942) Apophis will come extremely close to humanity.

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