SUNSET: 
Cosmic Relief with David Grinspoon
Seeing Through the Smoke
The near-term haze of climate disasters obscures our possible futures. But long-term trends leave room for optimism.
Cosmic Relief with David Grinspoon
Long Time Coming
Planetary exploration can take up a large portion of one’s life.
Cosmic Relief with David Grinspoon
Venus Lives!
Don’t disbelieve the hype: New evidence for active volcanic vents on our sister planet is convincing.
Cosmic Relief with David Grinspoon
ET on Earth?
The search for extraterrestrial intelligence should not exclude our own planet.
Cosmic Relief with David Grinspoon
Nudging a Space Rock
That’s one small change in an asteroid’s orbit, one giant leap for humanity.
Cosmic Relief with David Grinspoon
Worlds Apart
Can a newly found exoplanet help explain why Earth and Venus diverged so radically?
Sending Astronauts to Venus
Crazy as it might seem, it’s a logical and thrilling prospect.
Cosmic Relief with David Grinspoon
Crash as Trash
When should we start thinking about cleaning up our space junk on Mars?
Searching for Intelligence on Earth
Space exploration can serve as an antidote to war. And vice versa.
Grave Expectations
We can try to devise rules for how detecting alien life should unfold, but E.T. might not play along.
Life Beyond Earth?
By century’s end, the author thinks we’ll have an answer to this question. But what kind of answer?
Mariner 9: The Martian Semicentennial
A half century ago, Mariner 9 — our first orbiter at another planet — showed us the real Mars.
The Prime of Their Lives
The strange cycles of cicadas offer timely insight into the search for ET.
Eavesdropping on Mars
The most compelling audio the Perseverance rover will record might well be the sounds it generates itself.
The Cosmic Conjunction
When the world’s got you down, look up and tune into orbital time.
My Virtual Comet Sighting
There’s nothing like being there, but these days we can all find a pretty good view.
