In 2018, a laboratory was launched to the International Space Station to study ultra-cold quantum gases in the microgravity environment

In 2018, a laboratory was launched to the International Space Station to study ultra-cold quantum gases in the microgravity environment. The facility is called the Cold Atom Lab. It was designed to study atoms at temperatures close to absolute zero while they are inside the International Space Station. The laboratory gives researchers access to conditions that cannot be maintained in the same way inside laboratories on Earth. It uses lasers to cool atoms and allows scientists to examine quantum behaviour. The experiments can also produce a state of matter known as a Bose-Einstein Condensate, or BEC.

Cold Atom Lab studies atoms in space

The Cold Atom Lab is an instrument installed on the International Space Station. Its purpose is to study ultra-cold quantum gases in a microgravity environment. The facility was launched on May 21, 2018. It was sent to the International Space Station and installed a few months after its launch.


The laboratory focuses on a temperature and force-free environment that is difficult to create in terrestrial laboratories. Scientists can use these conditions to study the behaviour of atoms and examine quantum phenomena.

On Earth, gravity affects experiments involving clouds of atoms. The microgravity environment aboard the International Space Station gives researchers more time and space to observe these clouds after they have been cooled.

How Cold Atom Lab cools atoms?

Cold Atom Lab uses lasers to cool atoms. The system can reduce their temperature to less than a degree above absolute zero. Absolute zero is the lowest temperature that can theoretically be reached. It corresponds to 0 kelvin, or about minus 273.15 degrees Celsius.

As atoms are cooled, their movement becomes much slower. At temperatures close to absolute zero, scientists can study properties that are difficult to observe when atoms are moving at higher temperatures. The laboratory therefore creates conditions in which the behaviour of atoms can be examined at the quantum level.

The microgravity environment adds another part to these experiments. Without the same influence of gravity found on Earth, researchers can observe ultra-cold atoms under conditions that are not available in many terrestrial experiments.

What is a Bose-Einstein Condensate?

When clouds of atoms reach ultra-cold temperatures, they can form a state of matter called a Bose-Einstein Condensate. A Bose-Einstein Condensate, or BEC, is different from the states of matter that people commonly encounter. Those states include solids, liquids, gases and plasmas.

In a BEC, atoms can behave collectively. Their quantum properties can become visible at a scale that scientists can observe more directly. This is important for quantum research because quantum effects are often associated with very small particles and systems. A BEC allows researchers to study these effects through a group of atoms.

Cold Atom Lab produced the first Bose-Einstein Condensates in Earth orbit. This gave scientists an opportunity to study this state of matter in the microgravity environment of the International Space Station.

Why microgravity matters for quantum research?

The microgravity environment is one of the main reasons Cold Atom Lab operates aboard the International Space Station. On Earth, gravity affects the movement of ultra-cold atoms. Researchers can reduce the effect of gravity in other ways, but experiments inside the International Space Station can provide conditions that are different from those found in terrestrial laboratories.

The Cold Atom Lab is designed to use these conditions for fundamental research. The objective is to learn more about the nature of atoms and quantum science. Researchers can study how ultra-cold atoms behave when they are given an environment in which gravity has less influence. This can help scientists examine quantum phenomena and develop a better understanding of the physical rules that govern atoms.

Multiple research groups use Cold Atom Lab

Cold Atom Lab is not limited to one experiment or one research group. Multiple groups conduct experiments using the facility. The laboratory can support different studies involving ultra-cold atoms and quantum phenomena. The facility is operated remotely from NASA's Jet Propulsion Laboratory, also known as JPL.

Remote operation allows researchers and operators to manage the laboratory without astronauts needing to perform every part of the experiment manually. The International Space Station provides the location for the laboratory, while teams on Earth can control and operate the facility from NASA's Jet Propulsion Laboratory.

What is the main objective of Cold Atom Lab?

The primary goal of Cold Atom Lab is to use the microgravity environment of the International Space Station for fundamental research. Scientists want to use ultra-cold atoms to investigate questions about atoms and quantum science. The facility provides an environment where researchers can study matter at temperatures close to absolute zero.

The experiments can also help scientists understand how quantum properties behave when atoms are placed in conditions that differ from those found on Earth. The work is part of wider research into quantum phenomena and the physical behaviour of matter.

How quantum science connects to everyday technology?

Quantum phenomena are not limited to space research. Many technologies used in everyday life are based on quantum phenomena. Transistors and microchips are examples. Transistors are used to control electrical signals in electronic devices. Microchips contain large numbers of electronic components and are used in computers, smartphones and other technologies.

Research into quantum science can therefore contribute to a broader understanding of the principles behind technologies used on Earth. Cold Atom Lab focuses on fundamental research rather than being a conventional technology demonstration. However, studying atoms and their quantum properties can help scientists understand the physical principles that support many technologies.

Cold Atom Lab and future research

The Cold Atom Lab gives researchers access to conditions that are difficult to reproduce in terrestrial laboratories. Its work combines ultra-cold temperatures with the microgravity environment of the International Space Station. By cooling atoms to temperatures less than a degree above absolute zero, scientists can create conditions in which quantum behaviour becomes easier to study.

The production of Bose-Einstein Condensates in Earth orbit is one result of this research. The facility also allows multiple groups to conduct experiments remotely. This makes the International Space Station a location for continued research into atoms and quantum science.

Key facts about Cold Atom Lab

• Type: Instrument
• Launch: May 21, 2018
• Location: International Space Station
• Operator: NASA's Jet Propulsion Laboratory
• Objective: Study quantum phenomena
• Main research area: Ultra-cold quantum gases
• Cooling method: Lasers
• Temperature: Less than a degree above absolute zero
• State of matter studied: Bose-Einstein Condensate
• Research environment: Microgravity
• Research use: Multiple groups conduct experiments
• Notable result: First Bose-Einstein Condensates produced in Earth orbit