A spacecraft to touch the sun | | Set to launch on Saturday, the daredevil Parker Solar Probe will get closer to the sun than any spacecraft in human history. | | |
Partial solar eclipse on August 11 | | Saturday's eclipse will be the 3rd eclipse in this lunar month. It'll be visible from the Arctic, far-northeastern Canada, Greenland, Iceland, Scandinavia, and much of Asia (north and east). | | |
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Plate tectonics not needed for alien life? | | New research shows that plate tectonics might not be needed for life to evolve, after all. If not, the chances are now better that more distant worlds could support life. | | |