At double the width of our Milky Way galaxy, this jet of radio waves is the biggest ever detected so early in the universe's ...

Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

If an extraterrestrial civilization existed with technology comparable to ours, would they be able to detect Earth?

During the Cold War, American and Soviet scientists embarked on an unprecedented quest to contact extraterrestrials. But ...

In the more than 60 years in which scientists have engaged in the Search for Extraterrestrial Intelligence (SETI), several ...

The quasar that powers this jet formed within the first 1.2 billion years of the universe's existence, when it was only 9% of ...

Learn about the reflection of high-frequency signals in 5G communications and how impedance discontinuities can influence ...

RADAR stands for RAdio Detecting And Ranging and as indicated by the name, it is based on the use of radio waves. Radars send out electromagnetic ... that is really just sea "clutter". At some ...

From decades of astronomical observations, scientists know that most galaxies contain massive black holes at their centers.

Astronomers have characterized the largest-ever early-Universe radio jet. Historically, such large radio jets have remained elusive in the distant Universe. With these observations, astronomers have ...