Where does the solar system end and interstellar space begin? That's a question scientists have been working to answer using ...
Mars wasn't always frozen and barren. Billions of years ago it had flowing rivers, standing lakes, and possibly oceans. It ...
Space looks empty until you try to cross it. Far beyond Pluto, where sunlight is faint and the planets are long behind, ...
For obvious reasons, the Sun’s influence weakens as you get closer to the edge of the solar system. But things might be a lot ...
This artist’s rendition shows NASA’s Parker Solar Probe approaching the Sun. Steve Gribben/Johns Hopkins APL/NASA via AP Our Sun drives a constant outward flow of plasma, or ionized gas, called the ...
In May 2024, auroras were observed at unusually low latitudes across the globe, lighting up skies that rarely see such ...
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