SUNSET: 
Tsunamis Carried Boulders Across Ancient Martian Ocean
Long-ago impacts tossed up the floors of an ancient ocean on the Red Planet and carried debris to the landing site of NASA’s Viking 1 lander.
Explore the Night with Bob King
Mars Mesmerizes at Opposition
It may not be the closest opposition, but this time around Mars arcs high across the sky where good seeing promises sharp views. That's not all. On December 7th, one night before opposition, the full Moon occults the Red Planet!
New Images Track Clouds on Saturn's Largest Moon
Brand-new images from the James Webb Space Telescope and the Keck Observatory in Hawai'i reveal clouds beneath the haze on this enshrouded moon.
Explore the Night with Bob King
Sneak Peek at Two Promising Comets
Ready to chase comets? We look at two fuzzy solar system travelers that will keep you on your toes all fall and winter long.
Was Interstellar Object `Oumuamua a Chunk of Exo-Pluto?
The interstellar pancake named 'Oumuamua might have been a chip off a Pluto-like object in another star system.
Explore the Night with Bob King
Election Eclipse — Last Total Lunar Eclipse till 2025
Set the alarm and bring plenty of coffee. We've got a total lunar eclipse coming that you don't want to miss.
The Light Show of Jupiter’s Dark Side
The unique vantage point of NASA's Juno spacecraft has revealed a new side to Jupiter's auroras.
Arecibo Legacy: New Data on Near-Earth Asteroids
The largest set of radar data for near-Earth asteroids will help us understand their origins and protect Earth from future impacts.
Astronomy in Space with David Dickinson
NASA Lander and Orbiter See (and Feel) New Mars Impacts
NASA's Mars Insight lander and Mars Reconnaissance Orbiter have witnessed two fresh new planet-probing impacts.
New Life for Lunar Seismic Data
A team of planetary scientists has reprocessed Apollo-era seismic data to meet modern forms, ensuring that these precious measurements remain usable for the next generation.
Asteroid Samples Reveal Long Journey through the Solar System
Analyses of just 5.4 grams scooped from the asteroid Ryugu are delivering rich new insights into the history of the solar system.
Amateur Finds New Images of Uranus’ Rings in 35-Year-Old Data
What else is hidden in archival data?
Explore the Night with Bob King
All About the Dust — Orionids and Zodiacal Light
It doesn't take much to create a spectacle when it comes to astronomical observation. Just a pinch or two of dust.
Winking Stars Help Map Asteroids — and Discover a New Moonlet
An innovative method enables astronomers to gauge the size and shape of a distant asteroid — and potentially any km-scale object in the solar system.
DART Asteroid Redirect Test Wildly Successful
They needed to shorten the moon’s orbit by 73 seconds. They shortened it by more than half an hour.
Explore the Night with Bob King
Full Moon Fringe Benefits
The upcoming Hunter's Moon reminds us of the many ways we can enjoy observing our humble satellite.
Juno's Close View of Jupiter's Europa (New Photos!)
Juno will pass over the surface of Europa this week in our closest view since the Galileo mission, aiding future exploration efforts.
Photos Show Drama of DART Asteroid Impact (Updated)
The DART impact into asteroid moon Dimorphos wowed astronomers with an unexpectedly dramatic plume.
NASA's DART Mission Successfully Impacts Asteroid
NASA's DART mission will impact the asteroidal moon Didymos on Monday. Here's how to watch and what we'll learn.
Neptune's Rings, Jupiter's “Frosted Cupcakes,” and 3D Views of Mars
Three solar system emissaries have returned beautiful and even interactive vistas of Neptune, Jupiter, and Mars.