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How Long Will Life on Earth Last?

Nothing lasts forever, stars live and die over the course of hundreds of millions to billions, and in the case of red dwarf stars, trillions of years. Plane...

What is the Habitable Worlds Observatory?

Finding habitable worlds has been a driving passion since we first learned there were other planets out there, and to find them, we are going to need a dedic...

How Starshades Can Help Us Find New Worlds

Most of the 5000 exoplanets discovered so far have been found using methods that don’t actually see the planet at all. Brightness dimmings and star wobbles ...

How Common are Habitable Exoplanets?

How common are habitable exoplanets? Where’s the life? Astronomers are using all tools at their disposal to answer this question.

Finding Exoplanets with Direct Imaging

So here’s the scenario: We see all planets - including those in our solar system - in reflected light from the star. Starlight shines on a planet and is ref...

Finding Exoplanets

How do astronomers find exoplanets? This episode explores the various ways planets around other stars reveal themselves.

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TRAPPIST-1e: The Most Habitable Exoplanet?

TRAPPIST-1e is a rocky, close-to-Earth-sized exoplanet orbiting within the habitable zone around the ultra-cool dwarf star TRAPPIST-1 approximately 40 light-...

The Many Earth-Sized Worlds of TOI-700

Move over TRAPPIST-1, there a new system that is just as exciting. TOI-700 is a system of four rocky, Earth-sized worlds and some might be habitable

KELT-9b: The Hottest Known Exoplanet

Kelt-9b is a gas giant planet that orbits a star 670 light-years from Earth. It is so close to its star that its dayside temperature is 7,800 degrees Fahrenh...

HAT-P-67 b: The Largest Exoplanet Known

HAT-P-67-b seems to fit the bill. It is 1,200 light years from Earth and has a radius that is a little over twice that of Jupiters’. It orbits its host sta...

TRAPPIST-1d: A World on the Edge of Life

Tucked inside a quiet solar system, in the area of sky outlined by the constellation Aquarius, orbits a planet named TRAPPIST-1d, the third of seven planets ...

TRAPPIST-1: A System Full of Hope

While data from Hubble and Webb Space Telescopes have yet to confirm the existence of any atmospheres on any of these worlds, we have only just begun looking...

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Trillions of Worlds Without Stars

Astronomers estimate that there are more free roaming planets in our galaxy than there are planets in orbit around stars

A Giant Planet Found Orbiting a Small Star

Finding planets in locations we don’t expect and in regions that defy our current understanding is an important reason why astronomers scan the heavens in se...

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