Expert Voices

As society contemplates going to the moon or Mars, there's a rising debate as to whether it's worth the money.

The situation in question in March 2019 was NASA's cancellation of an all-female spacewalk.

All four known forces of nature have their own unique place — and the strong nuclear force governs the very small.

Fortunately, we're getting to the point where we can see potentially hazardous objects coming — and maybe even do something about it.

So there's this stuff called "antimatter." But a weirdly small amount of it.

Neutrinos are the changelings of the subatomic world, but physicists are getting closer to pinning down the particles' true identities.

The concept of atoms had been floating around off and on for a few millennia, but it took some clever experimentation to pinpoint their existence.

We don't understand the concept of time much at all.

Imagine astronauts on Mars, tasked with picking rock samples that will be used by scientists to search for signs of life. But they can only transport a limited number back to Earth.

When the Captain Marvel movie opens, coinciding with International Women's Day, it will be Marvel Studios's first female-superhero led film.

This excerpt from Chapter 16 of Rod Pyle's new book "Interplanetary Robots" details the history of the probes that have braved the crushing pressure and fearsome heat of the planet Venus.

A recent search for oddball supersymmetric particles, which could explain some of the weirdness of the universe, came up empty-handed.

Here's how we know the distant Oort Cloud exists.

In the new book "Space 2.0," Rod Pyle gives an inside look at what's coming next for space exploration, resource extraction and settlement.

Why did the hominin cross the plain? We may never know.

The world is still celebrating the historic landing on China's Chang'e-4 on the far side of the moon on January 3.

The private space race is about to take another great leap as Israel sends a private lander to the moon.