The dwarf planet Sedna will fly nearer the Sun in 2076. A nuclear rocket or a solar sail spacecraft could reach it within 7 ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

How light is light? The James Webb Space Telescope has just been able to directly image a planet so light and faint that, in ...

Studies of 15 M-type stars have revealed new insights into the potential presence of exoplanets. A new study led by ...

What can Earth-sized exoplanets teach scientists about the formation and evolution of exoplanets throughout the cosmos? This is what a study recently posted to the arXiv preprint server hopes to ...

TOI-6894 b, the largest exoplanet relative to its host star yet seen, doesn’t fit the most widely accepted formation model ...

In a stellar nursery 460 light-years away, astronomers sharpened old ALMA data and spotted crisp rings and spirals swirling ...

Solar flares can reshape exoplanet atmospheres within days, affecting temperature, winds, and potential habitability.

The assistant did not initially add Pluto, the far-flung dwarf planet companion at the edge of the solar system — or the ...

The orange dwarf Gliese 710 is expected to come within 0.1663 light-years or 10,520 astronomical units in about 1.29 million ...

If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, the moon moves through light and shadow, and the sun hangs in the sky.