The Atacama Large Millimeter/submillimeter Array

What are Radio Telescopes?

We use radio telescopes to study naturally occurring radio light from stars, galaxies, black holes, and other astronomical objects.

Radio Frequency Interference

The radio signals arriving on Earth from astronomical objects are extremely weak — millions (or billions) of times weaker than the signals used by communication systems.

Our Latest Telescope Technology

At today’s observatories, the needs of astronomers for better instruments continue to drive developments in such fields as electronics, mechanical engineering, and computer science.