Mercury shares its orbit with a ring of wandering dust, and a cloud of as-yet-undiscovered asteroids likely gave rise to a similar ring in Venus' neighborhood, recent research suggests.
Venus, second planet from the sun, is the brightest planet in our solar system.
This excerpt from Chapter 16 of Rod Pyle's new book "Interplanetary Robots" details the history of the probes that have braved the crushing pressure and fearsome heat of the planet Venus.
Surprise! New pictures show two symmetrical streaks hiding in the sulfuric acid clouds close to the surface of Venus.
Astronomers just found an asteroid that zips around the sun every 165 Earth days — the shortest year for any known asteroid.
Now that Sunday night's total lunar eclipse has passed into history, get ready for the two brightest planets to unite in a stunning dawn conjunction.
Lots of people got to admire, and puzzle over, the fireball that blazed up off the coast of Northern California just after sunset on Wednesday (Dec. 19).
A fireball lit up the sky over the San Francisco Bay Area shortly after sunset Wednesday (Dec. 19), leaving an odd, wind-twisted trail in its violent wake.
A beautiful crescent moon with visible earthshine forms a triangle with the Pleiades star cluster and the bright planet Venus just after sunset in this twilight scene.
One of seven planets orbiting a small star, TRAPPIST-1, may be capable of supporting life as we know it on Earth, new climate models suggest.
Breakthrough Initiatives, which already scans the heavens for possible signals from faraway alien civilizations, is considering looking for E.T. closer to home — in our own solar system.
Early morning risers who head out to work and school before sunrise should notice a very bright, star-like object in the east-southeast sky.