NASA's next great space telescope should launch no later than 2027. The Nancy Grace Roman Space Telescope is a powerful…
The next step to understanding exoplanets is to understand their atmospheres better. Astronomers can determine a planet's mass, density, and…
We know a ton about the inside of Earth. We know it has both an inner core and an outer…
Can one type of planet become another? Can a mini-Neptune lose its atmosphere and become a super-Earth? Astronomers have found…
Most stars will end their lives as white dwarfs. White dwarfs are the remnant cores of once-luminous stars like our…
Before NASA's TESS (Transiting Exoplanet Survey Satellite) mission launched in 2018, astronomers tried to understand what it would find in…
We found our first exoplanets orbiting a pulsar in 1992. Since then, we've discovered many thousands more. Those were the…
What an exoplanet shaped like a rugby ball tells us about its composition.
Astronomers have spied three more exoplanets. But the discovery might not last long. Each planet is in a separate solar…
Astronomers have found a small, hot planet that might be almost solid iron.