SUNSET: 
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.
Astronomy in Space with David Dickinson
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.
Explore the Night with Bob King
Witness a Total Lunar Eclipse on Sunday, May 15–16
The full Flower Moon ducks inside Earth's shadow in a total lunar eclipse this month. We help you prepare for all the highlights of the special event.
The Black Hole Files with Camille Carlisle
Astronomers Unveil Image of the Milky Way’s Central Black Hole
Using a worldwide array of telescopes, the Event Horizon Telescope team has given us our first look at Sagittarius A*.
Why We Look Up with Jennifer Willis
In Praise of Small-Scope Astronomy
Many an amateur astronomer has desired a bigger telescope, but sometimes it's worth taking a moment to appreciate what we have.
The Black Hole Files with Camille Carlisle
10 New Merger Events in Gravitational-Wave Data
An independent team has found additional black hole mergers in LIGO data.
Explore the Night with Bob King
How to Observe and Measure Naked-eye Sunspots
As Solar Cycle 25 ticks up, naked-eye sunspots are becoming more frequent. They're not only fun to observe, but with this simple method you can determine just how big they are. We also have news on a bright supernova!
Astronomy in Space with David Dickinson
New Target for Asteroid Probe: “Potentially Hazardous” Apophis
Once the primary mission of NASA's OSIRIS-REx is complete, the spacecraft will head toward a new destination: near-Earth asteroid Apophis.
Explore the Night with Bob King
Celebrate Spring with the Lyrids
People have been watching the annual Lyrid meteor shower for more than 2,700 years. Come join the crowd!
Astronomy in Space with David Dickinson
What's in Store for the Next Decade of Planetary Science
Big winners in the planetary science decadal survey include a Uranus flagship mission, a orbiter and lander for Enceladus, and an emphasis on planetary defense.
Cosmic Relief with David Grinspoon
Searching for Intelligence on Earth
Space exploration can serve as an antidote to war. And vice versa.
Why We Look Up with Jennifer Willis
Starlit Legacy
Share the joy of stargazing and become part of the legacy of astronomy.
Explore the Night with Bob King
Comets to View in 2022
Like comets? We've got 11 frozen fuzzies to share with you in the coming months, including a couple that could become fine binocular objects.
Explore the Night with Bob King
Will Saturn Sprout Spots this Observing Season?
As Saturn returns to the morning sky, will this otherwise serene-looking planet experience another bout of severe weather? Keep your eyes peeled for white spots!
Astronomy in Space with David Dickinson
Russia-Ukraine War: Impacts on Space (Updates)
Russia’s ongoing invasion of Ukraine has far-reaching consequences for spaceflight and the international space community.
Cosmic Relief with David Grinspoon
Grave Expectations
We can try to devise rules for how detecting alien life should unfold, but E.T. might not play along.
