When comets pass close to the sun, they give off a residue of particles that make their way through the Earth's atmosphere. This dust, scientists have reported, might be older than the sun itself.

Scientists are following a trail of interstellar dust all the way back to the formation of the solar system. What we now know as the solar system began as a cloud of interstellar dust and gas. By ...

Just as dust gathers in corners and along bookshelves in our homes, dust piles up in space too. But when the dust settles in the solar system, it’s often in rings. Several dust rings circle the Sun.

The spacecraft landed in 2019 to study the deep interior of the planet. NASA is being forced to end its Mars lander mission early because of dust. Officials announced Tuesday the InSight spacecraft is ...

New supercomputer simulations tracking the interactions of thousands of dust grains show what the solar system might look like to alien astronomers searching for planets. The models also provide a ...

Two recent studies report discoveries of dust rings in the inner solar system: a dust ring at Mercury's orbit, and a group of never-before-detected asteroids co-orbiting with Venus, supplying the dust ...