Understanding how plastics flow from land to sea is essential for solving the growing problem of plastic pollution. Rivers play a key role as major transport pathways, and accurate monitoring ...

Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...

Space-based solar power has been gaining more and more traction recently. The recent success of Caltech's Space Solar Power ...

3I/ATLAS likely weighs more than 33 billion tons. The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say. A ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

This video follows NASA’s Voyager 2 spacecraft as it journeys beyond the heliosphere—the boundary where the Sun’s influence ends and interstellar space begins. It explores the probe’s discoveries ...

San Diego Community Power announced Wednesday a $55 million initiative that will offer rebates and incentives to encourage its customers to install solar-plus-battery systems in their homes. “This is ...

A mysterious object hurtling through space has been identified as a rare “interstellar object,” only the third of its kind ever seen. In July, NASA reported its ATLAS (Asteroid Terrestrial-impact Last ...

We’ve all seen this happen in a science-fiction movie: our plucky heroes jump into their ramshackle spaceship and escape the bad guys by flying through the treacherous asteroid belt, where huge rocks ...

NASA's IMAP mission and two other space weather probes took flight atop a Falcon 9 rocket today (Sept. 24). SpaceX just sent three space weather probes to the final frontier. A Falcon 9 rocket lifted ...

More than 2 billion kilometers farther from the sun than Pluto, a frigid world named Makemake sports the most distant gas ever seen in our solar system, new observations reveal. “By surprise, we found ...