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.
Related Topics: Expert Voices - Don Lincoln, Expert Voices - Leroy Chiao, Expert Voices - Paul Sutter, Expert Voices - Robert Lawrence Kuhn, Expert Voices - The Kavli Foundation
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Latest about expert voices
Are we prepared for Chinese preeminence on the moon and Mars? (op-ed)
The U.S. could lose its decades-old leadership in space exploration and technology to China.
Could the solar system be teeming with interstellar objects? We'll soon find out (op-ed)
With JWST and other telescopes, we now have the tools to tell the difference between an intelligent visitor and an interstellar 'dark comet' like 'Oumuamua. Let's not get fooled.
Getting it right on the moon: Let's not trash Tranquility (op-ed)
Humanity is headed back to the moon. We shouldn't make the same mistakes there that we have made here on Earth.
Inside 'Earthrise': A historian's take on the origins of the Apollo 8 'image of the century'
The impact of Apollo 8's "Earthrise" picture – the sight of the Earth from the moon – now seems even greater than that of the first landing.
Space rocks and asteroid dust are pricey, but these aren’t the most expensive materials used in science
I use moon and Mars rocks in my teaching and have a modest collection of meteorites. I marvel at the fact that I can hold in my hand something that is billions of years old from billions of miles away.
Astronomers have learned lots about the universe − but how do they study astronomical objects too distant to visit?
What astronomers can measure using telescopes is not what we really want to know – instead, we calculate the properties we're interested in studying by observing and interpreting apparent properties from afar.
Why Einstein must be wrong: In search of the theory of gravity
Unlike physical theories describing the other three fundamental forces in physics, the general theory of relativity has only been tested in weak gravity.
How do astronomers know the age of the planets and stars?
Measuring the ages of planets and stars helps scientists understand when they formed and how they change – and, in the case of planets, if life has had time to have evolved on them.
