A Dartmouth-led survey identified more than 300 candidate satellite galaxies orbiting low-mass star systems known as dwarf galaxies. Pictured are possible satellites around the dwarf galaxy ESO486-G21 ...

A team of astronomers using a Yale supercomputer have determined for the first time that galaxies in denser environments are as much as 25% larger than their counterparts in less dense regions of the ...

Among the hundreds of billions of galaxies that stretch across the known universe, even the smallest members can reveal secrets about our cosmic history. But even as we discover new galaxies, ...

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

Give them a constellation prize. A group of international scientists discovered three ultra-massive “Red Monster” galaxies capable of forming their own stars faster than the average nebula. The ...

A newly discovered system of six planets circling a nearby Sun-like star may be the key to unlocking how planetary systems form. All between the size of Earth and Neptune, the worlds are orbiting in a ...

Distances in space are usually impossibly large and hard to get a handle on but this week astronomers said as many as six percent of stars known as Red Dwarfs have planets around them in the habitable ...

A dramatic life-and-death game of planetary survival is taking place inside a gigantic cloud of gas and dust 1,500 light-years from Earth, and the outcome could have far-reaching implications for the ...

Hubble can capture galaxies so far away their light took billions of years to arrive, yet Pluto remains a blur. The reason lies in size, distance, and the limits of resolution. It’s a paradox that ...

Mysterious radio waves might be winds from stars that exploded billions of years ago, according to new research. A new study suggests these strange, galaxy-sized waves could actually be galactic winds ...

Students from London's Western University are in northern Ontario this week to launch an infrared camera the size of the ...