subatomic particles

An artist's illustration depicts a primordial black hole (left) speeding across the surface of Mars and causing a slight "tremor" in Mars' orbit (right), with the sun in the background. Scientists from MIT claim that such a tremor may be detectable with the instruments available today. Credit: Illustration by Benjamin Lehmann, used with SpaceEngine @ Cosmographic Software LLC.

Dark matter: primordial black holes and the mysterious wobble of Mars' orbit

These holes, which are theoretical remnants of the early universe, may be detectable every decade as they pass through the solar system, offering a new way to study the elusive dark matter
The galaxy cluster Abel 2744 or the Pandora cluster. The researchers looked at the galaxies behind it. Photograph of the Hubble Space Telescope

The first light in the universe

James Webb Space Telescope observations of galaxies in the young universe revealed that the first light in space came from bright young stars