Sun releases strong solar flare

The sun emitted a strong solar flare, peaking at 10:37 a.m. ET on May 29, 2024. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event.

Physicists reach atomic-scale telegraphy with light

In the 1880s Heinrich Hertz discovered that a spark jumping between two pieces of metal emits a flash of light—rapidly oscillating electromagnetic waves—which can be picked up by an antenna. To honor his groundbreaking ...

NASA's new experimental antenna tracks deep space laser

An experimental antenna has received both radio frequency and near-infrared laser signals from NASA's Psyche spacecraft as it travels through deep space. This shows it's possible for the giant dish antennas of NASA's Deep ...

page 1 from 21