SUNSET: 
Cosmic Relief with David Grinspoon
Sending Astronauts to Venus
Crazy as it might seem, it’s a logical and thrilling prospect.
Perseids Are Coming, Full Moon or Not
Don't use a full Moon pass to skip this year's Perseid meteor shower. Right here, right now, we're going to help you make the most of it.
Korea's Lunar Orbiter Heads for the Moon
South Korea's lunar orbiter has launched successfully for the Moon, joining a growing number of missions there.
Astronomy in Space with David Dickinson
Hubble's Future in the Webb Era
Even though it's far past its warranty, Hubble is still proving its worth in this new era that includes the James Webb Space Telescope.
Why We Look Up with Jennifer Willis
Summer Insomnia
Long, hot days mean sleepless nights for stargazers, but it's worth it for the magic that happens under a dark, cool sky.
Solving an Earthshine Mystery
Something we take for granted about the crescent Moon's appearance may be nothing more than an optical illusion.
See a Rare Transit of Iapetus on July 17–18
It's tiny. It's challenging. But you won't get the chance to see Iapetus transit the globe of Saturn again until 2037!
What We See in the First Science Images from the James Webb Space Telescope
The James Webb Space Telescope released its first science images today. Here's what these images show us.
Why We Look Up with Jennifer Willis
Stargazing’s Lessons for Living
Can stargazing make you a better person?
Explore the Night with Bob King
Titan Occults a Bright Star, Mira Awakens, and Comet PanSTARRS Shines
Pick one or see them all. July offers a potpourri of celestial events for both naked-eye observers and telescope users that include a rare occultation by Saturn's moon Titan, a bright comet, and Mira at maximum.
Monstrous Black Holes Spin More Slowly — But Why?
X-ray observations add to growing evidence that the most massive black holes have a different past than their lightweight peers.
Astronomy in Space with David Dickinson
Successful Launch of Capstone, the Lunar Gateway Pathfinder
Capstone, a small pathfinder spacecraft with a big mission, launched today to pave the way for crewed return to the Moon.
Astronomy in Space with David Dickinson
Found: Booster Impact Crater on the Farside of the Moon
The Lunar Reconnaissance Orbiter mission has found the impact site created March 4th. The crater might help reveal the impactor's identity.
Explore the Night with Bob King
Solar System Gets its Ducks in a Row
We'll have not one but many opportunities to enjoy a rare lineup of the bright planets over the next few weeks. Amazingly, they'll be aligned in order of their distance from the Sun.
Cosmic Relief with David Grinspoon
Crash as Trash
When should we start thinking about cleaning up our space junk on Mars?
Astronomy in Space with David Dickinson
Perseverance Watches Wild Winds on Mars
NASA’s Perseverance rover is recording the windy weather in Jezero Crater, chronicling its role in making the Red Planet dusty.
Explore the Night with Bob King
Tau Herculid Meteors Surprise and Delight
We touch on the highlights of the memorable Tau Herculid meteor shower and also report on the recent outburst of the recurrent nova U Scorpii.
Why We Look Up with Jennifer Willis
Lunaphiles, Unite!
The Moon is our most obvious and immediate celestial companion. For many stargazers, the Moon was our first astronomical love.
Explore the Night with Bob King
A New Way to See the Big Dipper
Unlike most asterisms, many of the Big Dipper's stars really are physically connected. They belong to a loosely bound stellar stream called the Ursa Major Moving Cluster.
NASA's Insight Lander Detects Monster Marsquake
NASA’s Mars Insight lander witnessed the largest quake detected on another world at just the right time — as the lander begins to run low on power.