HeyJaredPaul Sutter
- Indexed articles, last 90 days
- 12
- Latest publication
- Aug 20, 2026
- Outlet visibility, for Universe Today
- Top 500K sites
- Earliest in this view
- Jul 15, 2026
Latest articles
What Can We Actually Find on an Exoplanet? Part 4: Looking For Us (opens the original)
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(This is Part 4 of a series on what we can actually find on an exoplanet. Read Part 1, Part 2, and Part 3 first.) All of that from a single dot. One HWO observation of an exoplanet can reveal what's in its atmosphere, sketch a rough map of its surface, show where its oceans and continents lie, and even pick up signs of photosynthesis and how life responds to the changing seasons. And we can go bigger. That same dot can tell you whether there's not just life, but intelligent life. If a planet has
What Can We Actually Find on an Exoplanet? Part 3: Reading the Face of a Planet (opens the original)
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(This is Part 3 of a series on what we can actually find on an exoplanet. Read Part 1 and Part 2 first.) Oh, it's enough. It's never enough, of course, but it's enough to justify building this monstrous planet-hunting telescope, because a single pixel gives you far more than you'd think. That dot has a color, maybe even a pale blue one. It has a spectrum. And it changes brightness as the planet spins on its axis and swings through its orbit. The HWO is our first purpose-built biosignature machin
What Can We Actually Find on an Exoplanet? Part 2: A Machine to Find Another Earth (opens the original)
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(This is Part 2 of a series on what we can actually find on an exoplanet. Read Part 1 first.) It's not hopeless, because the James Webb isn't the last telescope we'll ever build. Next up on the docket of space launches is the Nancy Grace Roman Space Telescope, which will mostly run deep-universe cosmology surveys but will also, almost incidentally, pick out millions of exoplanets using a trick called microlensing. That only reveals that a planet exists, not whether it can support life, which is
What Can We Actually Find on an Exoplanet? Part 1: The Atmospheric Fingerprint (opens the original)
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In 1990, the Voyager 1 spacecraft, then six billion kilometers from Earth and destined to become humanity's most far-flung emissary, turned around and took a picture of home. The resulting image is now legendary: a haunting portrait of our tiny, fragile world, a single pale blue dot suspended in a sunbeam. Now imagine you're an alien species hunting for life on other worlds. You've found a promising candidate, a rocky planet orbiting a medium-sized star in its habitable zone. And let's say that
Chandrasekhar and the Limits of Physics, Part 4: Vindication (opens the original)
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(This is Part 4 of a series on the life and work of Chandrasekhar. Read Part 1, Part 2, and Part 3 first.) Back in the 1930s, Eddington had mocked Chandra for so much as gesturing toward them, because that's what the mass limit really implied. If a white dwarf above 1.4 solar masses can't hold itself up, then something has to happen to it, and that something is catastrophic collapse: a star crushing itself down past every stable configuration we knew of. Even once the field grudgingly accepted C
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