Dailymotion on MSN
Did a cosmic collision jumpstart Earth's plate tectonics?
Around 4.5 billion years ago a giant object around the size of Mars crashed into the proto-planet Earth, called Theia. This ...
32mon MSN
Mystery as NASA probe goes dark after close encounter with interstellar visitor nearing Earth
NASA has revealed new details of what happened to a probe that had a close encounter with interstellar object 3I/ATLAS.
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