Expert Voices - Opinion and Insights on Space and Tech

Deep in the sun's core, buried under hundreds of thousands of miles of twisting and convecting hydrogen and helium, a nuclear fire rages.

When we look up at Mars in the night sky we see a red planet - largely due to its rusty surface. But what's on the inside?

For most of us, seeing a dark sky means packing your bags and heading on an adventure.

The rigors of astronaut training determine who has the "right stuff." What some may not know, however, is that every astronaut undergoes life support training.

Exoplanets are showing up in some unexpected places.

Jacqueline Hewitt discusses how NASA's TESS exoplanet mission has already changed the institute she directs and will bring about further evolution in the years to come.

At 13.8 billion years ago, our entire observable universe was the size of a peach and had a temperature of over a trillion degrees.

The just-launched Transiting Exoplanet Survey Satellite (TESS) could soon provide the breakthrough identification of dozens of potentially habitable exoplanets right in our cosmic backyard.

The now defunct Chinese space station Tiangong-1 is en route to crash into Earth – completing its "atmospheric reentry phase."

If you read the fine print of many other companies they usually say that astronomers do not officially recognize the name of the star you just purchased.

UK's Astronomer Royal Martin Rees shares his memories of the late star physicist Stephen Hawking.

Albert Einstein's vision for how gravity works was, to say the least, a radical departure from the older, Newtonian perspective.