These are big, literally cosmic questions, and astronomers continue to struggle to nail down the answers. Different ...

When we go backwards in time through the history of the cosmos, the distances and volumes shrink, while the average energy ...

When the two neutron stars collide, the initial kilonova of exploded neutron star guts is extremely hot, billions of degrees, ...

The black hole's voracious appetite, which has allowed it to pile on more than seven million solar masses in just 12 million ...

Using the James Webb Space Telescope (JWST) and the Atacama Large Millimeter/submillimeter Array (ALMA), an international ...