Strange, sinuous gullies etched into the dunes of Mars are finally giving up their secrets. These gouges, new experiments reveal, are carved by the explosive sublimation of dry ice, burrowing down the ...

Windward Community College students Nikki Arakawa, left, and D’Elle Martin work on a camphor- powered sublimation rocket. Project Imua team members Joe Ciotti, left, Quinn-Patrick O’Malley, Caleb Yuen ...

👉 Watch the video of Sarah’s science experiment at Helotes Elementary School here! Hello parents, teachers and students! Be sure to check out GMSA@9 on Wednesdays when Meteorologist Sarah Spivey does ...

Dry ice looks a bit like regular ice. While it can be clear, it’s usually white because water vapor freezes into frost on its surface. Dry ice is very cold. It’s −78.5 °C or −109.2 °F, which is cold ...