Expert Voices: Op Ed & Insights
Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com.
Latest about expert voices
![A Starship test vehicle.](https://cdn.mos.cms.futurecdn.net/9qJSbtQe5QjeGsYrwdFmc3-320-80.jpg)
Missing the moment history happens: The media and 'NewSpace' (op-ed)
By Rick Tumlinson published
The important stuff, if mentioned at all, wasn't part of the build-up to the Artemis story about NASA finally returning to the moon after 50 years or so.
![Close-Up of the Sun](https://cdn.mos.cms.futurecdn.net/PQdg63aegxa4NQvUZ9otZD-320-80.jpg)
'One of the greatest damn mysteries of physics': We studied distant suns in the most precise astronomical test of electromagnetism yet
By Michael Murphy published
There's an awkward, irksome problem with our understanding of nature's laws that physicists have been trying to explain for decades.
![Trail from BlueWalker 3 above Kitt Peak telescope in Arizona.](https://cdn.mos.cms.futurecdn.net/72gu9XRdykyQcdTCNu8gdU-320-80.jpg)
BlueWalker 3, an enormous and bright communications satellite, is genuinely alarming astronomers
By Michael J. I. Brown published
On a dark night, away from the city lights, you can see the stars in the same way as your ancestors did centuries ago.
![A view from the International Space Station shows different colors of airglow.](https://cdn.mos.cms.futurecdn.net/bs8yDKQwjenBK6ZrXFLNJG-320-80.jpg)
The sky isn't just blue — airglow makes it green, yellow and red too
By Michael J. I. Brown, Matthew Kenworthy published
Is blue the true color of the sky, or the only color of the sky? It's complicated.
![NASA’s Orbiting Carbon Observatory (OCO-2) satellite can make precise measurements of global atmospheric carbon dioxide (CO2) from space.](https://cdn.mos.cms.futurecdn.net/SMKMWDgYpLKCPjUzVvHaqS-320-80.jpg)
Tracking CO2 emissions from space could help support climate agreements
By Ray Nassar published
The central objective of the Paris Agreement is to limit Earth's warming to well below 2 degrees Celsius above pre-industrial levels, but preferably below 1.5 degrees.
![The target chamber at the National Ignition Facility has been the site of a number of breakthroughs in fusion physics.](https://cdn.mos.cms.futurecdn.net/h83i78LgqLZQZuDfLwoKbm-320-80.jpg)
Why fusion ignition is being hailed as a major breakthrough in fusion — a nuclear physicist explains
By Carolyn Kuranz published
American scientists have announced what they have called a major breakthrough in a long-elusive goal of creating energy from nuclear fusion.
![On the 20th day of the Artemis I mission, Orion captured the Earth rising behind the moon following the return powered flyby.](https://cdn.mos.cms.futurecdn.net/NvFgGL26n5zqTCLVimhBvH-320-80.jpg)
Looking back from beyond the moon: How views from space have changed the way we see Earth
By Alice Gorman published
How does a stunning photo from Artemis 1 compare to other iconic views of Earth from the outside?
![Picketers rally in front of the UCLA library.](https://cdn.mos.cms.futurecdn.net/oaRWVu9nV5kY3qHdXeBM96-320-80.jpeg)
University of California workers strike for a more equitable future in education (op-ed)
By Briley Lewis published
48,000 academic workers across California are fighting for higher wages and workplace protections.
Get the Space.com Newsletter
Breaking space news, the latest updates on rocket launches, skywatching events and more!