Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

Found less than a billion years after the Big Bang, these massive objects are upending astronomers’ timeline for how early ...

Greek astronomer Claudius Ptolemy, who lived in Egypt, built upon Babylonian knowledge in his geocentric model of the ...

Astronomers have struggled with finding ultra-faint dwarf galaxies far enough from the Milky Way's influence, making these ...

Over 40 stars in a galaxy billions of light-years away were photographed, offering a glimpse into an era when the universe ...

When we turn to “complex” extraterrestrial life or “intelligent” aliens, our results were 67.4 percent agreement, and 58.2 ...

The atmosphere, a thin veil of molecules enveloping Earth, reaches about 20 miles (32 kilometers) above the planet's surface.

However, there is still a great deal we don't know about the universe. To put this into context, the "normal" matter around us that makes up stars, planets, moons, asteroids, animals, tables ...

An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ...

Chile's Atacama Desert is home to some of the best Earth-based observatories, though an energy company is throwing a wrench ...

Astronomers have detected an intensely brightening and dimming quasar that may help explain how some objects in the early universe grew at a highly accelerated rate. The discovery is the most distant ...

The James Webb Space Telescope is much larger than the Hubble and instead of orbiting the Earth, operates from a stationary ...