Where does the solar system end and interstellar space begin? That's a question scientists have been working to answer using ...

As the United States prepares to celebrate its 250th anniversary, the history of the solar system tells its own story of ...

Space looks empty until you try to cross it. Far beyond Pluto, where sunlight is faint and the planets are long behind, NASA’s New Horizons spacecraft is moving through a region where the Sun’s ...

Moon impact 3.5 billion years ago reveals hidden Solar System history through tiny mineral grains. The discovery shows asteroid bombardment continued long after the Late Heavy Bombardment period.

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 ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

‘What we’re seeing is that the generation increases—these record increases—are the results of structural changes in the power system,’ explains Ember’s Nicolas Fulghum. Image: Ember. The latest ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...

Variations in solar output on timescales from days to centuries exert a measurable influence on Earth’s climate system through changes in radiative forcing, atmospheric chemistry and circulation. The ...