Science

Astounding Movements in the Universe: ALMA's Radio Dishes on the Move!

2025-08-25

Author: Olivia

Unlocking the Secrets of the Universe!

To delve deep into the cosmos and unveil its mysteries, the Atacama Large Millimeter/submillimeter Array (ALMA) employs its powerful radio dishes, which study cosmic structures at radio wavelengths. But did you know that these impressive dishes can be rearranged for an even better astronomical view?

The Heavyweights of Astronomy

Each of ALMA's radio dishes is a staggering feat of engineering, weighing up to 100 tons (90,718 kg). Moving such colossal structures is no small task and requires specialized transporters that weigh around 135 tons (122,470 kg) themselves!

Meet Otto and Lore: The Dynamic Duo!

ALMA's two transporters, affectionately named Otto and Lore, are essential for relocating the dishes. These machines not only ensure continuous power to the dishes during transit but also position them with millimeter precision to maintain data collection without interruption.

Custom-Built for Excellence

Crafted to perfection, Otto and Lore are equipped with specialized brakes and accelerators that guarantee a smooth ride over the rugged terrain of the Atacama Desert. While they can be remotely operated for delicate maneuvers, these transporters can also be driven manually, complete with space for an oxygen tank to assist drivers at high altitudes.

The Majestic Atacama Desert Awaits!

This stunning photograph captures the action taking place in the northern Atacama Desert, particularly around the two main ALMA sites: the Array Operations Site (AOS), located at an impressive 16,400 feet (5,000 meters) on the Chajnantor plateau, and the Operations Support Facility (OSF), positioned at 9,500 feet (2,900 meters) below.

A Competitive Edge in Astronomy!

ALMA stands as a pivotal hub for astronomers worldwide. Its flexibility in rearranging its radio dish array grants it an unmatched advantage over other observatories. This allows scientists to observe the universe at millimeter and sub-millimeter wavelengths, honing in on cold and distant phenomena such as protoplanetary disks, molecular clouds, and star-forming regions.

Curious to Discover More?

Dive deeper into the wonders of ALMA and its groundbreaking role in uncovering the secrets of the universe!