Astronomers are rethinking one of their oldest tools: the telescope’s mirror. A new study led by Dr. Heidi Newberg of ...

'It could make lightweight mirrors that are 15 or 20 meters in diameter a reality.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A scientist ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. It’s pretty easy to imagine carving glass to make parts for a ...