Could next-generation telescopes see that Earth has life?

While the Earth absorbs a lot of energy from the sun, a lot of it is reflected back into space. The sunlight reflected from Earth is called Earthshine. We can see it on the dark portion of the moon during a crescent moon. ...

How did the Butterfly Nebula get its wings? It's complicated

Planetary nebulae form when red giant stars expel their outermost layers as they run out of helium fuel—becoming hot, dense white dwarf stars that are roughly the size of Earth. The material that was shed, enriched in carbon, ...

Astronomers discover irregularities in the cores of red giants

Red giants are dying stars, in advanced stages of stellar evolution, which have depleted the hydrogen in their cores. In a study published today in Nature Communications, a team of astronomers mainly from Instituto de AstrofĂ­sica ...

Why Jupiter doesn't have rings like Saturn

Because it's bigger, Jupiter ought to have larger, more spectacular rings than Saturn has. But new UC Riverside research shows Jupiter's massive moons prevent that vision from lighting up the night sky.

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