China completes first mission to moon and back

China completed its first return mission to the moon early Saturday with the successful re-entry and landing of an unmanned probe, state media reported, in the latest step forward for Beijing's ambitious space programme.

Traveling to the sun: Why won't Parker Solar Probe melt?

This summer, NASA's Parker Solar Probe will launch to travel closer to the Sun, deeper into the solar atmosphere, than any mission before it. If Earth was at one end of a yard-stick and the Sun on the other, Parker Solar ...

New water cycle on Mars discovered

Approximately every two Earth years, when it is summer on the southern hemisphere of Mars, a window opens: Only in this season can water vapor efficiently rise from the lower into the upper Martian atmosphere. There, winds ...

Solar activity is declining—what to expect?

(Phys.org)—Is Earth slowly heading for a new ice age? Looking at the decreasing number of sunspots, it may seem that we are entering a nearly spotless solar cycle which could result in lower temperatures for decades. "The ...

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