NASA has detected a mysterious signal coming from a distant super-Earth called TOI-1846 b, a planet nearly twice Earth's size ...

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

On July 14, 2015, the New Horizons space probe came within 7,800 miles of Pluto, providing NASA scientists with the clearest ...

For many of us, the idea of a solar system with just eight planets is a fundamental concept in science. However, since Pluto was reclassified as a dwarf planet in 2006, Neptune has stood as the last ...

NASA confirms the existence of TOI‑1846 b, a nearby hot super-Earth that could contain water, initially observed by NASA's ...

New research suggests sub-stellar objects called dark dwarfs could glow forever on dark matter energy. Could they reveal secrets about the universe’s hidden mass?

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

Some exoplanets in their stars' habitable zones may be distinctly uninhabitable due to solar flaring. Red dwarfs are known ...

Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of ...

The James Webb Space Telescope has captured an exoplanet no one had seen before. This marks a turning point in space ...