Invasive insects that resemble tiny wasps are quietly spreading across the United States, threatening pine trees, and experts say Christmas tree farms could be next.

Astronomers detect 10 billion-year-old radio waves from a distant galaxy cluster SpARCS1049, revealing a mini-halo that suggests black holes or cosmic collisions energize galaxies.

Astronomers have uncovered a vast cloud of energetic particles—a "mini halo"—surrounding one of the most distant galaxy clusters ever observed, marking a major step forward in understanding ...

Using NASA's Chandra X-ray space telescope, astronomers have discovered that an entire galaxy cluster is wrapped in a 20 million light-year-wide envelope of charged particles.

Galaxy cluster pileup sets record for the size of its glow A cloud of energetic gas lit up by a collision of galaxies spans nearly 20 million light-years, leading astronomers to question what’s ...

Galaxy clusters are some of the largest structures in the universe, containing massive amounts of hot gas, dark matter, and hundreds — even thousands — of galaxies. As an individual galaxy moves ...

Since the first collision, the clusters have continued traveling outwards and are currently separated by about 11 million light-years.

Astronomers have smashed the record for the largest-known cloud of energetic particles discovered surrounding a galactic cluster—and the find could shake up established physics. The cluster in ...

These Galactic Clusters Smashed Into Each Other. Giant Bow Shocks Suggest They're About To Go For Round 2 A mystery surrounds how these bow shocks are as far away from the galaxy merger as they are.

A cluster of eleven quasars on a galactic boundary challenges existing models, prompting a rethink of quasar formation in large-scale cosmic structures.

Astronomers have explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group discovered the existence of a fast-moving, high ...