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Rock hyraxes, known in southern Africa more often as “dassies,” are furry, thickset creatures with short legs and no discernible tails. They spend much of their time sunning themselves on rocky outcrops.

Another thing they sometimes do is drag…

This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights.

The International Space Station is one of the most remarkable achievements of the modern age. It is…

For a long time, scientists believed that planets didn’t really stand a chance in double-star systems.

Two stars pulling on each other with intense gravity seemed like a recipe for chaos – not the kind of place where planets could peacefully…