Astronomy

The average number of visible dark patches on the sun's surface in August was higher than any other month since September 2001. The final count was more than twice as high as experts initially predicted it would be.

Saturn will enter opposition on Sept. 7 and 8, orbiting on the opposite side of Earth as the sun. Here's everything you need to know to spot Saturn at its peak size and brightness this week.

'The bottom line is, there is no crisis in terms of the standard model of cosmology.

NGC 6744 is a spiral galaxy bigger than, but otherwise very similar to, our own. NASA has dubbed the large spiral galaxy the Milky Way’s ‘big brother’.

A mysterious ring invisible at all wavelengths except radio could be a trace of a dramatically unstable star shedding its skin.

NASA scientists have discovered a planet-wide electric field surrounding Earth, confirming a 60-year-old hypothesis. Studying the field could yield some vital information about how our planet's atmosphere has evolved.

The new AI system can estimate cosmological parameters with stunning precision, and it could help astronomers unpick one of the thorniest problems in the field.

The James Webb Space Telescope has uncovered six "rogue planets" careening through space without a star. The objects are believed to have formed directly from gas collapse, blurring the lines between planets and stars.

Scientists might be on track to revealing new facets of physics.

Astronomers have traced the origins of 200 meteorites to five impact craters in two volcanic regions on Mars, known as Tharsis and Elysium.