One hundred degrees might seem hot, when you’re sweating through your shirt in July—but on a cosmic scale it barely registers. The Sun itself is over 15 million degrees; and in a hottest-object ...

The low carbon levels are particularly interesting, as previously discovered “pristine” or metal-poor stars generally displayed high carbon levels. Astronomers believed that relatively heavier ...

The James Webb Space Telescope (JWST) has identified GLASS-z13, a galaxy potentially dating back 13.5 billion years, making it a candidate for the oldest and most distant galaxy observed, surpassing ...

University of Leicester provides funding as a member of The Conversation UK. Active galaxies are some of the most luminous and impressive objects in the sky. They tend to be massive, distant and emit ...

Light is fast. In fact, it is the fastest thing that exists, and a law of the universe is that nothing can move faster than light. Light travels at 186,000 miles per second (300,000 kilometers per ...

In a groundbreaking study published inNature Astronomy, astronomers have identified the lowest-mass dark object ever discovered through gravitational lensing. This breakthrough provides significant ...

Every now and again I’ll get a weird thought in my head that sits there demanding an answer. Sometimes it’s trivial, and sometimes it sounds silly but then leads to some fun insights. This time my ...

Astronomers have identified what could be the brightest, most luminous object in the universe — a quasar that emits light 500 trillion times more intense than that of our sun. Quasars are dazzling ...

Space is dark, which makes finding bright things like stars pretty darn easy. It also makes it possible for high-powered telescopes to spot things that are very, very far away, and researchers now ...

Eighteen-year-old YouTuber Christopher Slayton recently crafted entire planets, black holes, galaxies, and, well, the entire cosmos. And he used nothing but the blocks within Minecraft. In the more ...

The universe is a big place — really big — and it’s filled with some wondrously weighty objects. The heaviest of them all are black holes and neutron stars. In fact, they weigh so much that it’s ...

A faraway galaxy is blasting out the brightest radio emissions ever detected from 13 billion light-years away, and astronomers say this ultra-luminous celestial object — what's known as a quasar — ...