Expert Voices

How do you test theories of the universe? By building gigantic supercomputers and simulating the evolution of the cosmos.

Lots of us are familiar with pictures of the planet Saturn and its unmistakable ring.

A NASA spacecraft the size of a golf cart has been directed to smash into an asteroid, with the intention of knocking it slightly off course.

The heat inside planets is left over from when they were formed.

Wormholes may be stable after all, a new theory suggests, contradicting previous predictions that these hypothetical shortcuts through space-time would instantly collapse.

In a recent study, researchers determined that about 1% of all the "normal" (that is, not dark) matter in the universe is bound up inside black holes.

The satellite exploded into more than 3,500 pieces of debris, most of which are still orbiting.

Making a Red Planet simulation as realistic as possible is key to The Mars Society's research. Crews can accomplish this, but not with constant outside interference.

Is there intelligent life elsewhere in the universe?

Since 2014, there have been over 300 proposals for solutions to the "crisis in cosmology." None of these proposals is universally agreed upon by cosmologists, and the crisis just keeps getting worse.

The elements around some giant black holes may be subtly different from the cosmic average, retaining a relic memory of the young universe.

The detection of interstellar objects in the solar system has raised an interesting question: How much of the solar system is made of foreign material?

The new satellite is the first designed and built by the Australian Research Council Training Centre for Cubesats, UAVs, and their Applications (or CUAVA for short).

People have long claimed they can hear the northern lights, saying the sounds include eerie whizzing, crackling and buzzing. Is it just an auditory illusion?

The BepiColombo spacecraft – a joint project by the European and Japanese space agencies – swung by its destination planet Mercury in the early hours of Oct. 2.

In the short time since NASA's Perseverance rover landed in Mars' Jezero Crater on Feb. 18, 2021, it's already made history.

If scientists want astronomy to thrive throughout the 21st century, we need a new approach: to view new observatories through a lens of public benefit.

Global satellite-based high-speed internet access will come at a cost, polluting the skies and contaminating astronomical observations.