Explore the awe-inspiring differences in star sizes and their powers, ranging from the smallest red dwarfs to the most massive blue hypergiants. While the Sun is considered a medium-sized star, it’s ...

For decades, astronomers have wondered what the very first stars in the universe were like. These stars formed new chemical ...

Some stars in the universe grow to 300 times larger our own sun. But how do they get so big, and how do they sustain their ...

When the universe's first stars emerged from the cosmic dark ages, they ballooned to 10,000 times the mass of Earth's sun, new research suggests.

Researchers search for signs of life in the universe by waiting until ... the planet passed in front of its star. A white dwarf has about half the mass of the Sun, but that mass is compressed into a ...

Astronomers have called into question the identity of the most distant star in the universe ever detected, Earendel, first spotted by NASA's Hubble Space Telescope in 2022. New research using the ...

Astronomers recently identified an unusual star that most likely formed from the hypernova remains of one of the universe's first stars.

Astronomers have taken the sharpest images ever of the most massive star in the known universe. With these new images, the scientists were able to refine just how big this star is, and in the ...

The James Webb Space Telescope has detected a possible gas giant the size of Saturn in the stellar system nearest our own ...

Astronomers have discovered the most monstrous supermassive black hole ever. At 36 billion times more mass than our sun, it’s so big it’s pushing back the boundaries of possibility. They’ve even had ...

When the universe's first stars emerged from the cosmic dark ages, they ballooned to 10,000 times the mass of Earth's sun, new research suggests.