2026 Physics Nobel: The science of ‘neutrinos’, ‘ghost’ particles that can reveal universe’s mysteries

2026 Physics Nobel: The science of 'neutrinos', 'ghost' particles that can reveal universe's mysteries Francis Halzen.

Key points

• The IceCube Neutrino Observatory at the Amundsen-Scott South Pole Station, in Antarctica.
• The quest to detect neutrinos, and attempts to study them, have already led to a number of Nobel Prize wins.
• Neutrinos, particularly small sub-atomic particles produced mainly in nuclear reactions in stars, are among the most abundant particles in the universe, second only to photons (or light particles).

What happened

In practice, the IceCube Neutrino Observatory at the Amundsen-Scott South Pole Station, in Antarctica. (IceCube/NSF).

Neutrinos, particularly small sub-atomic particles produced mainly in nuclear reactions in stars, are among the most abundant particles in the universe, second only to photons (or light particles). And they can reveal a massive amount of new information concerning the universe. The difficulty has been that they are extremely challenging to detect, the reason they are often described as ghost particles.

Notably, the quest to detect neutrinos, and attempts to study them, have already led to a number of Nobel Prize wins. Another one was continued on Tuesday, with the 2026 Nobel Prize in Physics being awarded to Francis Halzen, a Belgian-American scientist who designed an elaborate set-up under ice sheets in Antarctica to detect these elusive particles.

The bottom line

For now, 2026 Physics Nobel: The science of 'neutrinos', 'ghost' particles that can reveal remains the part of the story worth watching, and further updates are likely as more details are confirmed.