Astronomy

Mysterious "odd radio circles" or ORCs that compass entire galaxies may have finally been explained, with astronomers pointing the finger at winds from bursts of supernova star explosions.

NASA has laid out a roadmap for major aspects that need to be addressed while developing a robotic system that can explore icy moons with water oceans.

Some of the strongest, longest, smallest, biggest and best reasons to celebrate space as the year comes to a close. There are a handful of awesome firsts in here too.

While hunting for dark matter, astronomers accidentally discovered the first known stellar stream stretching between galaxies. The trail of stars is also the longest ever seen.

The powerful space telescope's image of Cassiopeia A shining brightly and silently was revealed as part of the first-ever White House Advent Calendar.

"This discovery really drives home the point of just how little we know about the universe. We wouldn’t expect a planet this heavy around such a low-mass star to exist."

NOIRLab says it's on track to halve its planet-warming emissions by the end of 2027.

It’s not always easy to match objects from various telescopic surveys. A new method can change this, allowing objects to be matched in up to 100 different surveys.

"Finding a relationship with topography in one swirl location could just be a fluke, but finding it in two vastly separate swirl regions is harder to ignore."

Humanity's ability to track and monitor celestial cycles stretches back into prehistory, long before the invention of telescopes and astrolabes.