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?
SPACE.com invites experts in space exploration, science & technology to provide insightful commentary and informed perspective on news, current events, innovations, big ideas and ongoing research. Expert Voices includes Op-Ed analysis and opinion as well as interesting observations from the field and space exploration efforts around the world.
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.
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.
Albert Einstein's vision for how gravity works was, to say the least, a radical departure from the older, Newtonian perspective.
As exciting as SpaceX's Falcon Heavy launch was, we should remember that the wonders of space, with its "billions and billions" of planets and stars, are not exclusive domain of a few billionaires.
To visit a truly strange land full of wonder and mystery, all you have to do is crack open your microscope case and look down, down, down.
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